/*

	Credit: Jeremy Keith, http://www.alistapart.com/stories/domtricks2/
	
*/


addLoadEvent(bakeMenus);

function bakeMenus() {
	// Forget it IE, no nice menus for you.
    var agt		  = navigator.userAgent.toLowerCase();
    var is_ie     = ((agt.indexOf("msie") != -1) && (agt.indexOf("opera") == -1));
    
    if (!is_ie) {
		menus = getElementByClass("dl", "hovermenu");
	
		for (i = 0; i < menus.length; i++) {
			menus[i].setAttribute("class", "fancymenu");
			addEvent(menus[i], "mouseover", menuHoverIn);
			addEvent(menus[i], "mouseout", menuHoverOut);
			addEvent(menus[i], "click", menuDisplay);
		}
	}
}



function menuHoverIn() {
	this.setAttribute("class", "fancymenu hotmenu");
}
function menuHoverOut() {
	this.setAttribute("class", "fancymenu");
}
function menuDisplay() {
	removeEvent(this, "mouseover", menuHoverIn);
	removeEvent(this, "mouseout", menuHoverOut);
	removeEvent(this, "click", menuDisplay);
	this.setAttribute("class", "fancymenu activatedmenu");

	thisMenu = this;
	addEvent(this, "click", menuHide);
	addEvent(document, "click", menuHide);
}
function menuHide() {
	removeEvent(document, "click", menuHide);
	removeEvent(thisMenu, "click", menuHide);
	thisMenu.setAttribute("class", "fancymenu");
	addEvent(thisMenu, "mouseover", menuHoverIn);
	addEvent(thisMenu, "mouseout", menuHoverOut);
	addEvent(thisMenu, "click", menuDisplay);
}





/*

Unobtrusively attach script to the onLoad event
http://simon.incutio.com/archive/2004/05/26/addLoadEvent

*/

function addLoadEvent(func) {
	var oldonload = window.onload;
	if (typeof window.onload != 'function') {
		window.onload = func;
	} else {
		window.onload = function() {
			oldonload();
			func();
		}
	}
}

// Add an eventListener to browsers that can do it somehow.
// Originally by the amazing Scott Andrew.
// Stolen in kind from the equally amazing Stuart Langridge.
function addEvent(obj, evType, fn){
	if (obj.addEventListener) {
		obj.addEventListener(evType, fn, true);
		return true;
	} else if (obj.attachEvent) {
		var r = obj.attachEvent("on"+evType, fn);
		return r;
	} else {
		return false;
	}
}

// And let's have the ability to undo it too, shall we?
function removeEvent(obj, evType, fn){
	if (obj.removeEventListener) {
		obj.removeEventListener(evType, fn, true);
		return true;
	} else if (obj.detachEvent) {
		var r = obj.detachEvent("on"+evType, fn);
		return r;
	} else {
		return false;
	}
}



/*

Get Element by Class
Adapted from Stuart Langridge, kryogenix.org

*/

function getElementByClass(htmlElement, myClass) {
	// build a list of all named elements
	elementList = document.getElementsByTagName(htmlElement);

	// break if unsupported
	if (!document.getElementsByTagName) return;

	var results = new Array();
	
	for (i = 0; i < elementList.length; i++) {
		thisElement = elementList[i];
		if (((' '+thisElement.className+' ').indexOf(' '+myClass+' ') != -1)) {
			results.push(thisElement);
		}
	}
	return results;
}