function Ob(o)
  {
  var o = document.getElementById(o) ? document.getElementById(o): o;
  return o;
  }

function ExCls(o, a, b, n)
  {

  
  var o = Ob(o);
    
    
      for (i = 0; i < n; i++)
    {
    
    o = o.parentNode;
    }

  o.className = o.className == a ? b : a;
  }
  //
function CNLTreeMenu(id,ClassName,imgUrl)
  {
 
   Ob(id).className=ClassName;
   this.AllNodes = Ob(id).getElementsByTagName("li");
   
    this.ImgUrl =   imgUrl
    this.ImgBlankA = "<img src=\"" + this.ImgUrl +"\" class=\"s\" onclick=\" ExCls(this,'Closed','Opened',1)\" alt=\"Õ¹¿ª/ÕÛµþ\" />";
    this.ImgBlankB = "<img src=\"" + this.ImgUrl + "\" class=\"s\" />";
    for (i = 0; i < this.AllNodes.length; i++)
      {
    //  if(this.AllNodes[i].childNodes[1]&&this.AllNodes[i].childNodes[1].tagName=="UL")
    //  {
     // // alert(     this.AllNodes[i].childNodes[1].childNodes[0].innerHTML );
            
      //     
         //   }
//       this.AllNodes[i].childNodes[0].onclick=function(){ExCls(this.parent,'Closed','Opened',0)};
       this.AllNodes[i].className == "" ? this.AllNodes[i].className ="Closed": "";
       this.AllNodes[i].innerHTML = (this.AllNodes[i].className == "Child" ?this.ImgBlankB : this.ImgBlankA) + this.AllNodes[i].innerHTML;
      }
   this.AllNodes[0].className='Opened';
 
  }