var head="display:''";
img1=new Image();
img1.src="images/fold.gif";
img2=new Image();
img2.src="images/open.gif";

var ns6=document.getElementById&&!document.all;
var ie4=document.all&&navigator.userAgent.indexOf("Opera")==-1;

function checkcontained(e){
 var iscontained=0;
 cur=ns6? e.target : event.srcElement;
 i=0;
 if(cur.id=="mHead"){
  iscontained=1;
 } else {
  while (ns6&&cur.parentNode||(ie4&&cur.parentElement)){
   if (cur.id=="mHead"||cur.id=="mList"){
    iscontained=(cur.id=="mHead")? 1 : 0;
    break;
   }
   cur=ns6? cur.parentNode : cur.parentElement;
  }
 }
 if(iscontained){
  var foldercontent=ns6? cur.nextSibling.nextSibling : cur.all.tags("UL")[0];
  if(foldercontent.style.display=="none"){
 for (i=0;i<document.getElementsByTagName("UL").length;i++){
  if (document.getElementsByTagName("UL")[i].id=="mList"){
    foldercontentarray[c]=document.getElementsByTagName("UL")[i];
    foldercontentarray[c].style.display="none";
    foldercontentarray[c].previousSibling.previousSibling.style.listStyleImage="url(images/fold.gif)";
  }
 }
   foldercontent.style.display="";
   cur.style.listStyleImage="url(images/open.gif)";
  } else {
   foldercontent.style.display="none";
   cur.style.listStyleImage="url(images/fold.gif)";
  }
 }

 checkit();
}

if(ie4||ns6) document.onclick=checkcontained;