title: GWT: How do I mouseUp events?
body: <p>In GWT, how do I get the "mouseUp" events when dragging an element?</p>
  
  <p>I'd like to get the following flow:</p>
  
  <ul>
  <li>mouseDown</li>
  <li>mouseMove</li>
  <li>... some more mouseMove possibly...</li>
  <li>mouseUp </li>
  </ul>
  
  <p>I can get "mouseDown" and "mouseUp" when I do not move the cursor but the instant I move the cursor, I don't get "mouseUp" events anymore.  </p>
  
  <p>I've tried to put <code>event.preventDefault();</code> in both "mouseDown" and "mouseMove" handlers to no avail.</p>
  
  <p>Please help.</p>