diff --git a/server.py b/server.py
index c5d3a887..1668719c 100644
--- a/server.py
+++ b/server.py
@@ -211,6 +211,7 @@ def update_clients():
                 ws.send_message('show_window,' + str(id(client.root)) + ',' + repr(client.root))
                 
         client.old_root_window = client.root
+        client.idle()
         gui_updater(client, client.root)
     Timer(UPDATE_INTERVAL, update_clients, ()).start()
 
@@ -361,6 +362,11 @@ def instance(self):
             updateTimerStarted = True
             Timer(UPDATE_INTERVAL, update_clients, ()).start()
 
+    def idle(self):
+        """ Idle function called every UPDATE_INTERVAL before the gui update.
+            Usefull to schedule tasks. """
+        pass
+
     def do_POST(self):
         self.instance()
         varLen = int(self.headers['Content-Length'])
diff --git a/widgets_overview_app.py b/widgets_overview_app.py
index 0ddfdf00..bfb51ce2 100644
--- a/widgets_overview_app.py
+++ b/widgets_overview_app.py
@@ -20,7 +20,12 @@ class MyApp(App):
 
     def __init__(self, *args):
         super(MyApp, self).__init__(*args)
-
+        
+    def idle(self):
+        """ Usefull function to schedule tasks. 
+        Called every configuration.UPDATE_ITERVAL """
+        super(MyApp, self).idle()
+        
     def main(self):
         mainContainer = gui.Widget(600, 530, True, 10)