title: How Can a parent window know that its child window closed?
body: <p>I want to execute a function when an opened child window is closed. Child window opening code is:</p>
  <pre><code>outWin = window.open (pageURL, title, 'toolbar=no, location=no, directories=no, status=no, menubar=no, scrollbars=yes, resizable=no, copyhistory=no, width=600, height=400, top=100, left=100);
  </code></pre>
  <p>I want to call a Javascript function written in parent window. I am using YUI-2 for developing the plugin.
  How can I make it work? What event should be registered?</p>