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=="foldheader")
		iscontained=1
	
	if (cur.id=="foldheader1")
		iscontained=1
	
	while (ns6&&cur.parentNode||(ie4&&cur.parentElement))
	{
		if (cur.id=="foldheader"||cur.id=="foldinglist")
		{
			iscontained=(cur.id=="foldheader")? 1 : 0
			break
		}
		if (cur.id=="foldheader1"||cur.id=="foldinglist")
		{
			iscontained=(cur.id=="foldheader1")? 1 : 0
			break
		}
		cur=ns6? cur.parentNode : cur.parentElement
	}

	if (iscontained)
	{
		var foldercontent=ns6? cur.nextSibling.nextSibling : cur.all.tags("div")[0]
		if (foldercontent.style.display=="none")
		{
			foldercontent.style.display=""
			cur.style.listStyleImage="url(images/open.gif)"
		}
		else
		{
			foldercontent.style.display="none"
			cur.style.listStyleImage="url(images/fold.gif)"
		}
	}
}

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