title: How to open a child window and that time parent window should be disable
body: <p>I want to show a child window which will perform some action and it will set to the parent window. The time when child window is open , parent window should be disable.
  I tried this which return child window but parent window still in working mode while child window is open...</p>
  
  <pre><code>&lt;a href="AddChoice" onclick="var x = window.open('url',,'','hemenubar=yes,height= 300,       
  width = 500,,scrollbars=no,dialog=yes,minimize=no,maximize=no, 
  alwaystop=yes,copyhistory= no,resizable=yes,toolbar=no,directories=no
  ,location=no,menubar=no,status=no,left=0,top=0');return false;"&gt;
  Change Dependent Question...&lt;/a&gt;
  //This link returns a child window
  </code></pre>