title: stopPropagation not working for KeyListener in YUI 2.7
body: <p>I have created a new <code>YAHOO.util.KeyListener</code> to attach to a specific element and have also created another new <code>YAHOO.util.KeyListener</code> to attach to the entire document.  They are both associated with the <kbd>enter</kbd> key (keys:13).</p>
  <p>In the handler function for the listener attached to the specific element, I have the following code:</p>
  <pre><code>            getDetailsLocalnameInput = function(e) {
                      getDetails(localnameInput.value);
                      YAHOO.util.Event.preventDefault(e);
                      YAHOO.util.Event.stopPropagation(e);
              };
  </code></pre>
  <p>Yet, the event from the keypress continues to propagate up to the key listener attached to the entire document.  I do not want the handler for the key listener attached to the entire document to get kicked off.  I am sure that both handlers are being called, but only want the handler attached to the specific element to run.</p>
  <p>Is it correct to use <code>YAHOO.util.Event.stopPropagation</code> with <code>YAHOO.util.KeyListener</code>?</p>
  <p>Is there a different way I should go about preventing the <code>keypress</code> event from being propagated?</p>
  <p>I have also tried using the function <code>YAHOO.util.Event.stopEvent</code> and setting <code>e.cancelBubble</code> with no success.</p>
  <p>I have been testing all of this with Firefox 3.5.  I cannot get <code>stopPropagation()</code> to work at all.</p>