title: <a4j:ajax oncomplete> is not triggered while <a4j:support oncomplete> did
body: <p>I'm trying to trigger a javascript function using the a4j:ajax method. We are migrating from version 3 to version 4, and have also been upgrading spring and JSF. Previously, this worked fine:</p>
  
  <pre><code>&lt;a4j:support event="change" oncomplete="callJavascriptMethod()"&gt;
  </code></pre>
  
  <p>With version 4 of RichFaces, I'm trying to do the same, calling a javascript function everytime a dropdown list is beeing changed, but I have changed to use:</p>
  
  <pre><code>&lt;a4j:ajax event="change" oncomplete="callJavascriptMethod()"&gt;
  </code></pre>
  
  <p>I have also tried something like this just to see if the event's are triggered:</p>
  
  <pre><code>&lt;h:commandButton id="test" value="Test me!"&gt;
      &lt;a4j:ajax event="click" oncomplete="console.log('something');" /&gt;
  &lt;/h:commandButton&gt;
  </code></pre>
  
  <p>So far without luck. Any ideas? </p>