Jquery popup

hi i create web application
i have created two page

in 1st form displaying jquery popup

in that pop up displaying 2nd form
in first form using updatepanel also.

check the following code

Form1.aspx



$(function () {
var prm = Sys.WebForms.PageRequestManager.getInstance();
prm.add_endRequest(function () {
bindClickEvent();
});
$(function () {
bindClickEvent();
//});

function bindClickEvent()
{
           $('#lnkAddSubTask1').click(function () {
               var mydiv = $('#popupdiv');
               mydiv.dialog({
                   autoOpen: true, width: '1250', height: '650',
                   open: function (event, ui) { $(".ui-dialog-titlebar-close").hide(); },
                   modal: true,
                   buttons: {
                       Close: function () {
                           window.location.reload();
                       }
                   }
               });
               // Load the content using AJAX
               mydiv.load('AddSubTask.aspx');
               // Open the dialog
               mydiv.dialog('open');
           });
       });
      }

AddSubTask.aspx-- 2nd form