var head="display:''"
img1=new Image()
img1.src="/images/plus.gif"
img2=new Image()
img2.src="/images/minus.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=="foldheader")
		iscontained=1
	else
		while (ns6&&cur.parentNode||(ie4&&cur.parentElement))
		{
			if (cur.id=="foldheader"||cur.id=="foldinglist")
			{
				iscontained=(cur.id=="foldheader")? 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")
		{
			foldercontent.style.display=""
			cur.style.listStyleImage="url(/images/minus.gif)"
		}
		else
		{
			foldercontent.style.display="none"
			cur.style.listStyleImage="url(/images/plus.gif)"
		}
	}
}

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