JavaScript Programming JavaScript > Code Examples Add action event listener handler to a button Add action event listener handler to a button <html> <head> <title>Happy Codings :-) C++, C#, HTML, Java, JavaScript Code Examples</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 myButton = new Ext.Button({ text : 'hide me', handler : function() { myPanel.el.switchOff({ callback : function() { myPanel.el.slideIn.defer(500, myPanel.el, []); } }); } }); myPanel = new Ext.Panel({ width : 200, height : 100, title : 'Title me', frame : true, renderTo : Ext.getBody(), items : myButton }); }); </script> <div id='div1'>Happy Codings :-) C++, C#, HTML, Java, JavaScript Code Examples</div> </body> </html>