function InitTree(Id, sId){
    if (!document.getElementById) return;
    
   var ul = document.getElementById(Id);
   if(ul !=null) //fny - top level menus are not displayed
  { 
        if (!ul.childNodes || ul.childNodes.length == 0) return;
        
        var node = document.getElementById(sId)
        if(node != null) //fny - top level menus are not displayed
        {
            if (node.childNodes != null || node.childNodes.length >= 1){
                var subul = node.childNodes[1];
                if (subul != null) subul.className = "open";
            }
      
            //show parentnodes
            while (node.parentNode && node.parentNode.id != Id){
                if (node.nodeName == 'LI') {
                    node.parentNode.className = "open";
                }
            
                node = node.parentNode;
            }
          }
       var a = ul.getElementsByTagName('A');
       for(var i=0;i<a.length;i++){
            a[i].onclick = expandNode;
       }
    }  
}

function expandNode(e, node){
    if(!node)node=this;
    
    // show sibling ul
    var ul = node.nextSibling;
    if (ul != null) ul.className = "open";    
}