How to expand a tree with the selected node?

[hager]

Hello, I'm using rich:tree
I want to expand the tree with the selected node?
What can I do?
Thx for help!

[hager]

this my code :

<rich:tree id="tree"
 style="width:300px"
 ajaxSubmitSelection="true"
 switchType="client"
 value="#{treeMenu.treeNode}"
 var="data"
 adviseNodeOpened="#{treeMenu.expanded}"
 adviseNodeSelected="#{treeMenu.selected}"
 nodeSelectListener="#{treeMenu.nodeSelectListener}"
 nodeFace="text">

 <rich:treeNode type="text">
 <h:outputText value="#{treeMenu.mapLien[data]}" escape="false"></h:outputText>
 </rich:treeNode>
 </rich:tree>