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var tree;
   
   function treeInit() {
      
   
   tree = new YAHOO.widget.TreeView("leftnavigation");
            
      var cond = new YAHOO.widget.MenuNode("Conditions" , tree.getRoot(), false)
      var something = new YAHOO.widget.MenuNode("Something" , cond, false)
      
      var timer = new YAHOO.widget.MenuNode("Using Timer Conditions" , something, false)
        timer.title = "This document provides an overview of the timer conditions available in the Home Automation Manager Module."
      timer.href="timer_conditions.html"
      
      var logic = new YAHOO.widget.MenuNode("Using Logic Conditions" , something, false)
        logic.title = "This document provides an overview of the logic conditions available in the Home Automation Manager Module."
      logic.href="logic_conditions.html"
      
      
    //I find the node that is named after the document title and expand its parent:
  tree.getNodeByProperty ( "label" , document.title ).parent.expanded= true;
 
     
      tree.render();
   
      }
   
   YAHOO.util.Event.onDOMReady(treeInit);