rich:progressBar and the possible errors

[orkun]

hello

I am trying to use  rich:progressBar.

nothing happens in this code fragment

<a4j:outputPanel id="progressPanel2">

        <a4j:commandButton id="dene2" action="#{haritaBean1.startProcess}"
            value="Start Process2" reRender="progress2,progressPanel2" />
        <h:outputText id="heyno" value="#{haritaBean1.currentValue}"></h:outputText>
        <rich:progressBar id="progress2" value="#{haritaBean1.currentValue}"
            minValue="0" maxValue="400" oncomplete="alert('orkun')" onbeforedomupdate="alert('doğa')"/>

    </a4j:outputPanel>

what might be the possible mistakes .

regards

[ilya_shaikovsky]

I'm not sure what should happens If the currentValue properly set on button hit? What exactly not working PB component in general or event handlers you defined?