var head="display:''"
var oldlink=document.all[0]
img1=new Image()
img1.src="fold.gif"
img2=new Image()
img2.src="open.gif"
function change(){
if(!document.all)
return
	if (event.srcElement.id=="foldheader") {
	var srcIndex = event.srcElement.sourceIndex
	var nested = document.all[srcIndex+2]
		if (nested.style.display=="none") {
		nested.style.display=''
		event.srcElement.style.listStyleImage="url(../images/open.gif)"
		}
		else {
		nested.style.display="none"
		event.srcElement.style.listStyleImage="url(../images/fold.gif)"
		}
	}
	if (event.srcElement.id=="foldertitle") {
	var srcIndex = event.srcElement.sourceIndex
	var nested = document.all[srcIndex+1]
		if (nested.style.display=="none") {
		nested.style.display=''
		event.srcElement.style.listStyleImage="url(../images/open.gif)"
		}
		else {
		nested.style.display="none"
		event.srcElement.style.listStyleImage="url(../images/fold.gif)"
		}
	}
	var srcIndex2= event.srcElement.sourceIndex
	oldlink.className=''
	document.all[srcIndex2].className='bg'
	oldlink=document.all[srcIndex2]
}
document.onclick=change;

/*function opena(lin)
{
	obj = document.getElementsByTagName("a");
	//alert(obj.length);
	for (var i = 0; i < obj.length; i++)
	{
//			alert(obj[i].href);
			if (obj[i].href == lin)
			{
//				alert(obj[i].sourceIndex);
//				obj[i].style.display='';
				var lin2=document.all[obj[i].sourceIndex];
				lin3=lin2.parentNode.getElementsByTagName('*');
				
				for(var j=0;j<lin3.length;j++)
				lin3[j].style.display='';

			}
	}
}*/
//window.onload=function() {
//  var e2= document.getElementsByTagName("a");
//  alert(2)
//  alert(e2.length)
//  for (var i=0,l=e2.length;i<l;i++) e2[i].sourceIndex=i;
//}