Iam begginer with richfaces and i have a problem.

Iam trying to use this code in <h:form></h:form>

<a4j:form>
<h:panelGrid columns="3">
<h:outputText value="Name:" />
<h:inputText id="inputName" value="#{backing_initiateTask.temp}" />
<a4j:commandButton id="SayHelloButton" value="Say Hello" reRender="out" />
</h:panelGrid>
<h:panelGroup id="out">
<h:outputText value="Hello " rendered="#{not empty userBean.name}" />
<h:outputText value="#{backing_initiateTask.temp}" />
<h:outputText value="!" rendered="#{not empty userBean.name}" />
</h:panelGroup>
</a4j:form>


If i dont use tag <h:form></h:form> it works nice, but with this tag doesnt work.

Any suggestions?