Add tooltip to tab
<html> <head> <title>Hello World Window</title> <link rel="stylesheet" type="text/css" href="ext-3.0.0/resources/css/ext-all.css" /> <script type="text/javascript" src="ext-3.0.0/adapter/ext/ext-base.js"></script> <script type="text/javascript" src="ext-3.0.0/ext-all.js"></script> </head> <body> <script type="text/javascript"> Ext.onReady(function() { Ext.QuickTips.init(); new Ext.Viewport({ layout : 'fit', title : 'Exercising scrollable tabs', items : { xtype : 'tabpanel', activeTab : 0, id : 'myTPanel', enableTabScroll : true, resizeTabs : true, minTabWidth : 75, items : [ { title : 'our first tab', tabTip : 'asdf' } ] } }); }); </script> <div id='div1'>asdf</div> </body> </html>