i defined a rich tree like this:

<rich:tree value="#{forumsTreeBean.root}" style="width:20px"
 toggleOnClick="true" switchType="ajax" var="forums"
 nodeFace="simpleNode"
 adviseNodeOpened="#{forumsTreeBean.expandListener}"
 ajaxSubmitSelection="false">
 <rich:treeNode style="cursor:pointer" type="simpleNode">
 <a:outputPanel style="cursor:pointer">
 <h:outputText value="#{forums.name}" />
 <a:support event="onclick"
 actionListener="#{forumsTreeBean.selectListener}"
 ajaxSingle="true" reRender="body" />
 </a:outputPanel>
 </rich:treeNode>
 </rich:tree>

it do well.
but i selected a node(click node text),and fire the tree expand at the same time.
i want to select a node only,and don't fire a expand event.
how to do ,thanks.