Controls of Newpage.ASPX doens't show in Jquery popup

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VB

jQuery

Here is my Div tag in Page1.ASPX

<div id="dialog-NewTireSearch" style="display: none; overflow: hidden">
 </div>

There is another web form Search.ASPX

Now on button click I should open this Search.ASPX.
My Jquery Function I tried is

function myfunc() {
    mfiJ.ajax(
      {
          type: "POST",
          dataType: "html",
          url: "Search.aspx",
          resizable: false,
          height: 300,
          width: 600,
          modal: true,
          autoOpen: true,
          success: function(html) {
              tag.hide();
          },
          error: function(html) {
              tag.hide();
          }
      });
}

Search Page has some drop downs, textboxes controls which doesn't show up. I have tried everything in google. Nothing has helped in opening my Search Page. Can anyone help me with this?