automatically expand a tree on loading the body
===

Hi all Iam new to JSF technology how to automatically expand the tree on loading the page in by using rich:tree tag.
    
    <rich:tree switchType="client"
    value="#{Bean.deviceServiceTreeRoot}" var="item">
    <rich:treeNode>
    <h:commandLink value="#{item.name}"
    action="#{Bean.getLink()}"
    style="color:blue;text-decoration:none;"
    title="#{item.Description}">
    <f:param name="productIDs" value="#{item.ID}"></f:param>
    </h:commandLink>
    </rich:treeNode>
    </rich:tree>
Now by using the above code i can display a tree structure.The above is present in one page After clicking on submit button it will redirect to another page In that page I need to have the tree in expanded mode How can I achieve that Is that possible?