var head="display:''"

img1=new Image()

img1.src="images/menu/fold.gif"

img2=new Image()

img2.src="images/menu/open.gif"

img3=new Image()

img3.src="images/menu/list.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/menu/open.gif)"

		}

		else{

		foldercontent.style.display="none"

		cur.style.listStyleImage="url(images/menu/fold.gif)"

		}

	}

}



if (ie4||ns6)

document.onclick=checkcontained