Embedded Tab Panel
<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() { var embeddedTabPanel = { title : 'My second tab', closable : true, xtype : 'tabpanel', activeTab : 0, items : [ { title : 'Inner tab 1' }, { title : 'Inner tab 2' } ] } var tabPanel = new Ext.TabPanel({ activeTab : 0, id : 'myTPanel', enableTabScroll : true, items : [ embeddedTabPanel, embeddedTabPanel, embeddedTabPanel, ] }); new Ext.Window({ height : 300, width : 400, layout : 'fit', items : tabPanel }).show(); }); </script> <div id='div1'>asdf</div> </body> </html>