Jquery Doenot Work After Post Back

Jquery Statement Doenot Work After Post Back this Problem Stake Me For Some Days


 $(function () {
       // alert("Simple");
       $('#show').click(function(){
        $('.divvv').toggle(slow);
                  });
    });



Some As Above But Add  Single Line and Bind Method in Particular Function and Function on Each PostBack


   Sys.WebForms.PageRequestManager.getInstance().add_endRequest(funtionPost);  

//calling on each posback

funcion funtionPost()
{

 $(function () {
       // alert("Simple");
       $('#show').click(function(){
        $('.divvv').toggle(slow);
                  });
    });
}