title: event.toElement is undefined with onbeforedeactivate under IE9
body: <p>I'm trying to access the <code>event.toElement</code> property when the <code>beforedeactivate</code> event occurs, but it is returning <code>undefined</code> under IE9. It seems to work under IE8. The code below is an example of what I am trying to do:</p>
  
  <pre><code>$('#myButton').bind('beforedeactivate', myHandler);
  
  function myHandler(event)
  {
    var target = event.originalEvent.toElement;
  }
  </code></pre>
  
  <p>Can't seem to find much information on this issue so I was wondering if someone can explain why this is happening or suggest a workaround for the problem?</p>