var head="display:''";
img1=new Image();
img1.src="http://www.twu-canada.ca/images/clear.gif";
img2=new Image();
img2.src="http://www.twu-canada.ca/images/clear.gif";

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

function checkcontained(e){
var iscontained=0;
var cur=ns6? e.target : event.srcElement;
var 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(http://www.twu-canada.ca/images/clear.gif)";
}
else{
foldercontent.style.display="none";
cur.style.listStyleImage="url(http://www.twu-canada.ca/images/clear.gif)";
}
}
}
if (ie4||ns6)
document.onclick=checkcontained;