title: DHTML modal window, close on background click
body: <p>I am using the dhtml window widget script found here:</p>
  
  <p><a href="http://www.dynamicdrive.com/dynamicindex8/dhtmlwindow/index.htm" rel="nofollow">http://www.dynamicdrive.com/dynamicindex8/dhtmlwindow/index.htm</a></p>
  
  <p>I would like for the user to be able to close the dhtml popup window when clicking the background. Currently it only works when clicking the close button. How do I add that to this script?</p>