<rich:panel style="float:left;height:700px;margin-top:0px;margin-left:0px;overflow:none;">
 <a4j:region renderRegionOnly="false">
 <a4j:form>
 <rich:tree switchType="server" style="width:200px;" value="#{tmanager.data}" var="item" nodeFace="#{item.type}"
 ajaxSubmitSelection="true" nodeSelectListener="#{tmanager.selectNode}">
 <rich:treeNode type="root">
 <h:outputText value="#{item.type}" />
 </rich:treeNode>
 <rich:treeNode type="item">
 <h:outputText value="#{item.type}" />
 </rich:treeNode>
 <rich:treeNode type="child">
 <h:outputText value="#{item.type}" />
 </rich:treeNode>
 </rich:tree>
 </a4j:form>
 </a4j:region>
 </rich:panel>
 <s:div style="float:left;width:70%;margin-top:5px;margin-left:15px;margin-right:5px;">

 <a4j:form>
 <a4j:outputPanel ajaxRendered="true" >
 <a4j:region renderRegionOnly="false">
 <s:div id="fbearbeitung" rendered="#{tmanager.showPart == 1}">
 <a4j:include viewId="/fbearbeitung.xhtml" />
 </s:div>
 </a4j:region>

 <a4j:region renderRegionOnly="false">
 <s:div rendered="#{tmanager.showPart == 2}">

 <a4j:include viewId="/nfahrzeug.xhtml" />

 </s:div>
 </a4j:region>

 <a4j:region renderRegionOnly="false">
 <s:div rendered="#{tmanager.showPart == 3}">

 <a4j:include viewId="/fabmodel.xhtml" />

 </s:div>
 </a4j:region>

 <a4j:region renderRegionOnly="false">
 <s:div rendered="#{tmanager.showPart == 4}">

 <a4j:include viewId="/nmodel.xhtml" />

 </s:div>
 </a4j:region>

 <!-- neue filiale-->
 <a4j:region renderRegionOnly="false">
 <s:div rendered="#{tmanager.showPart == 5}">

 <a4j:include viewId="/nfilliale.xhtml" />

 </s:div>
 </a4j:region>

 <!-- filiale bearbeiten-->
 <a4j:region renderRegionOnly="false">
 <s:div rendered="#{tmanager.showPart == 6}">

 <a4j:include viewId="/filliale.xhtml" />

 </s:div>
 </a4j:region>

 <!-- firmen daten-->
 <a4j:region renderRegionOnly="false">
 <s:div rendered="#{tmanager.showPart == 7}">

 <a4j:include viewId="/pedit.xhtml" />

 </s:div>
 </a4j:region>

 <!-- firmen daten-->
 <a4j:region renderRegionOnly="false">
 <s:div rendered="#{tmanager.showPart == 8}">

 <a4j:include viewId="/fsuche.xhtml" />

 </s:div>
 </a4j:region>
 </a4j:outputPanel>


 </a4j:form>


 </s:div>
 <br/>
 <br/>
 <br/>
 <br/>
 <s:div style="float:left;">
 <a4j:outputPanel ajaxRendered="true">
 <h:messages globalOnly="false" />
 </a4j:outputPanel>
 </s:div>
 </ui:define>

I click on a leaf an right site will rerendered. I tried like that, but my bean must be in session scope, else doesn't work, like above, is this proceed okay, or have you another idea?