function init() {
var nav = $('nav');
for(var i =0; i < nav.childNodes.length; i++) {
	var curNode = nav.childNodes[i];
	if(curNode.nodeType == 1) {
		if(curNode.nodeName.toLowerCase() == "li") {
			var menuOff = function(event) {
				if(!(event.relatedTarget.descendantOf(Event.element(event)))) {
					Event.element(event).className = "";
					};
				};
			Event.observe(curNode, "mouseout", menuOff);
			Event.observe(curNode, "mouseover", function(event) {Event.element(event).className = "selected";});
			}
	}
}

var allMenuOff = function(event) {
	if(!(Event.element(event).descendantOf('nav'))) {
		var nav = $('nav');
		for(var i =0; i < nav.childNodes.length; i++) {
			var curNode = nav.childNodes[i];
			if(curNode.nodeType == 1) {
				if(curNode.nodeName.toLowerCase() == "li") {
					curNode.className = "";
				}
			}
		}
	}
};
Event.observe(document.body, "mouseover", allMenuOff);
};