Event-Pageshow not working

Event-Pageshow not working

Hi,

I am new jmob i am using event handling function but my page is not showing any alerts.

 <script type="text/javascript">

   $( '[data-role=page]' ).live('pageshow', function(event){ 
     alert("page show event);
});

        </script>
<div data-role="page" >
</div>
please help
Thanks & Regards,
Nithya