title: Closing popups on session expiry
body: <p>Here is the thing : my webapp has loads of popups and my boss wants 'em closed on session expiry, coz when session expires and an user presses refresh on a popup, he is being shown the logon page -> user logs on -> user is directed to the dashboard. Now, a dashboard screen in a popup is totally uncool. Here is where google got me: </p>
  
  <p>Have javascript to close popup onload. Generate this onload script into the response  if session has expired (checking session expiry from jsp and including onload script conditionally). </p>
  
  <p>Do you think this is a good way to it? What is the best practice for this scenario? </p>
  
  <p>P.S: I am not allowed to use AJAX</p>