function SetupMenu() {
	if (!document.getElementsByTagName) return;
	items=document.getElementsByTagName("li");
	for (i=0; i<items.length; i++) {
		if (items[i].className != "menu") continue;
		//set up event handlers
		thelink=findFirstChild(items[i],"A");
		thelink.onclick=HideShowMenu;
		//is there a submenu?
		if (ul=findFirstChild(items[i],"UL")) {
			ul.style.display = "none";
			ul.parentNode.firstChild.onmouseover=highlight;
			ul.parentNode.firstChild.onmouseout=notHighlight;
		}
	}
}

function findFirstChild(obj,tag) {
	cn = obj.childNodes;0
	for (k=0; k<cn.length; k++) {
		if (cn[k].nodeName==tag) return cn[k];
	}
	return false;
}

function HideShowMenu(e) {
	if (!e) var e = window.event;
	//which link was the mouse over?
	thislink = (e.target) ? e.target: e.srcElement;
	// we want LI, not the link
	if (thislink.nodeName == "IMG") {thislink = thislink.parentNode;}
	img = findFirstChild(thislink,"IMG");
	(img.src.lastIndexOf("_down") > 0) ? 
		(img.src = removeSubstr(img.src,img.src.lastIndexOf("_down"),5)) :
		(img.src = addSubstr(img.src,"_down",img.src.lastIndexOf("redtriangle")+11));
	thislink = thislink.parentNode;
	// find the submenu, if any
	ul= findFirstChild(thislink,"UL");
	if (!ul) return;
	(ul.style.display == "block") ? (ul.style.display = "none") : (ul.style.display = "block");
}

function highlight(e) {
	if (!e) var e = window.event;
	//which link was the mouse over?
	thislink = (e.target) ? e.target: e.srcElement;
	(thislink.nodeName == "IMG") ? (img = thislink) : (img = findFirstChild(thislink,"IMG"));
	var src = img.getAttribute('src');
	var hl = src.substring(0,src.length-4);
	hl += '_select.gif';
	img.setAttribute('src',hl);
}

function notHighlight(e) {
	if (!e) var e = window.event;
	//which link was the mouse over?
	thislink = (e.target) ? e.target: e.srcElement;
	(thislink.nodeName == "IMG") ? (img = thislink) : (img = findFirstChild(thislink,"IMG"));
	var src = img.getAttribute('src');
	var hl = src.substring(0,src.length-11);
	hl += '.gif';
	img.setAttribute('src',hl);
}

function addSubstr (str,add,pos) {
	var newStr = str.substring(0,pos);
	newStr += add;
	newStr += str.substring(pos);
	return newStr;
}

function removeSubstr (str,index,length) {
	var one = str.substring(0,index);
	var two = str.substring(index+1,index+length-1);
	var three = str.substring(index+length);
	return one.concat(three);
}