title: f:ajax listener never fired
body: <p>i'm using JSF 2.0 primefaces 2.2 and Spring 3.0.5.
  I have a little problem usign f:ajax listener that wasn't fired.
  This is the code:</p>
  
  <pre><code>&lt;h:form prependId="false" &gt;
     &lt;h:selectOneRadio value="#{autoBean.newAuto.marca}"&gt;
          &lt;f:selectItem itemValue="aa"/&gt;
          &lt;f:selectItem itemValue="bb"/&gt;
          &lt;f:ajax event="click" listener="#{autoBean.update}" /&gt;
      &lt;/h:selectOneRadio&gt;
  &lt;/h:form&gt;
  </code></pre>
  
  <p>and this is the method:</p>
  
  <pre><code>public void update(AjaxBehaviorEvent event)
  {
  }
  </code></pre>
  
  <p>any idea? 
  Thank you in advance</p>
  
  <p><strong>UPDATE</strong>
  Sorry, but the problem isn't simply to explain...</p>