function SetSelectedTreeNode()
{
	var tree = xt_GetTree(TreeName);
	if(SelectedIndex != "")
	{
	    var node = tree.FindNodeByTreeIndex(SelectedIndex);
	    if (node != null) 
	    {
	        var ele = node.GetTextElement();
	        var parentNode = node;
	        while (parentNode.IsRoot() == false) {
	            parentNode = parentNode.GetParentNode();
	            parentNode.Expand(false);
	        }
	        node.Expand();
	        ele.className = "nodeSelected"
	    }
	}
}