Document key down event
<html> <head> <script type="text/javascript" src="js/jquery-1.3.2.js"></script> <script type="text/javascript"> $(document).ready(function(){ $(window).keydown(function(event){ alert(event.keyCode); switch (event.keyCode) { } }); }); </script> </head> <body> <body> <p><input type="text" /> <span>focus event fire</span></p> </body> </html>