Small loading bar on top of screen
Add <script src="jquery.loadBar.min.js"></script> before </body>
Custom settings can be defined on $(document).ready()
Background and strip color of the bar(default main = red, strip = green):
loadBar.mainColor = 'COLOR'; // Set the main color of the bar
loadBar.stripColor = 'COLOR'; // Set the color of the strip
loadBar.barSpeed = 5; // Set the speed of the bar
loadBar.barHeight = 5; // Set the height of the bar in px
loadBar.trigger('show'); // Show the bar
loadBar.trigger('hide'); // Hide the bar
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>loadBar</title>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/font-awesome/4.4.0/css/font-awesome.min.css">
</head>
<body>
<br /><br />
<p>Click the buttons below to see it working:</p>
<button onclick="showBar()">on</button>
<button onclick="hideBar()">off</button>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
<script src="jquery.loadBar.min.js"></script>
<script>
function showBar() {
loadBar.trigger('show');
}
function hideBar() {
loadBar.trigger('hide')
}
</script>
</body>
</html>