title: a4j:support after h:inputText value change doesn't work
body: <p>can anyone figure out why the <code>h:outputText</code> doesn't get refreshed after inputText value change?
  I've tried both <code>onkeyup</code> and <code>onchange</code> and both don't affect..</p>
  
  <p>When I do some other thing that makes the page refresh, the <code>h:outputText</code> is rendered correctly so it's only a matter of getting the ajax to actually rerender the component.</p>
  
  <pre><code>&lt;h:inputText autocomplete="off" styleClass="propertyInput"
      value="#{activesyncDM.userNameDomain}" validator="#{activesyncDM.validate}"
      id="userNameDomain" dir="ltr"&gt;
      &lt;a4j:support event="onkeyup" reRender="domainNameSlash"/&gt;
  &lt;/h:inputText&gt;
  &lt;h:outputText id="domainNameSlash" value="\\"  rendered="#{!empty activesyncDM.userNameDomain}"/&gt;
  </code></pre>
  
  <p>Thanks!!</p>