title: JavaScript: How to close all child windows upon user opt logoff?
body: <p><strong>Requirement:</strong> </p>
  
  <ol>
  <li>All child windows which are opened and they are required to remain
  open through out the user session on IE  irrespective of user action
  refreshes the browser windows.</li>
  <li>Close all child windows when user click logoff action.</li>
  </ol>
  
  <p><strong>Problem:</strong> </p>
  
  <p>Child window handle cannot be retained across the pages when browser re-render the window, due to F5/refresh button or navigation. </p>