using Jquery Popup to be shown using submit click

Question

  When i click the submit button Popup to be displayed

 

1.  Submit code as follows

 

 <input type="button" id="btn_PDC" runat="server"  class="blueBtn" value="SUBMIT">

2.  Display popup using Jquery code as follows

$(function () {
});

$("#btn_PDC").click(function() {
$('#divMessage').show();
});

3.  in run mode when i click submit button Popup is not displayed.

From my above code what is the mistake.