/* 
sfHover = function() {

var sfEls = document.getElementById("navLevelOne").getElementsByTagName("LI");

for (var i=0; i<sfEls.length; i++) {

sfEls[i].onmouseover=function() {

this.className+=" sfhover";

}

sfEls[i].onmouseout=function() {

this.className=this.className.replace(new RegExp(" sfhover\b"), "");

}

}

} if (window.attachEvent) window.attachEvent("load", sfHover);*/
/* =================================================================== */
//Browser check - better to check for method availability than browsers
var IS_DOM = (document.getElementById) ? true : false;
var IS_IE = (document.all) ? true : false;
var IS_IE50 = (navigator.userAgent.indexOf("IE 5.0") != -1);
var IS_Mac = (navigator.appVersion.indexOf("Mac") != -1);
/* =================================================================== */
/* =================================================================== */
// function to add events crossbrowser
// from: http://www.dustindiaz.com/rock-solid-addevent/
// uncomment the EventCache lines if using EventCache function from code lib
function addEvent( obj, type, fn ) {
	if (obj.addEventListener) {
		obj.addEventListener( type, fn, false );
		EventCache.add(obj, type, fn);
	}
	else if (obj.attachEvent) {
		obj["e"+type+fn] = fn;
		obj[type+fn] = function() { obj["e"+type+fn]( window.event ); }
		obj.attachEvent( "on"+type, obj[type+fn] );
		EventCache.add(obj, type, fn);
	}
	else {
		obj["on"+type] = obj["e"+type+fn];
	}
}

// use only with addEvent function
// this is here to clear the event cache to prevent memory leaks
// for more info:  http://novemberborn.net/javascript/event-cache
var EventCache = function(){
	var listEvents = [];
	return {
		listEvents : listEvents,
		add : function(node, sEventName, fHandler){
			listEvents.push(arguments);
		},
		flush : function(){
			var i, item;
			for(i = listEvents.length - 1; i >= 0; i = i - 1){
				item = listEvents[i];
				if(item[0].removeEventListener){
					item[0].removeEventListener(item[1], item[2], item[3]);
				};
				if(item[1].substring(0, 2) != "on"){
					item[1] = "on" + item[1];
				};
				if(item[0].detachEvent){
					item[0].detachEvent(item[1], item[2]);
				};
				item[0][item[1]] = null;
			};
		}
	};
}();
addEvent(window,'unload',EventCache.flush);
/* =================================================================== */


/* =================================================================== */
// function to add/remove classes from elements
// written by Christian Heilmann 
// more info here http://www.onlinetools.org/articles/unobtrusivejavascript/cssjsseparation.html
// call like cssjs('add',containerOBJ,classname);
function cssjs(a,o,c1,c2){
	switch (a){
		case 'swap':
			o.className=!cssjs('check',o,c1)?o.className.replace(c2,c1):o.className.replace(c1,c2);
		break;
		case 'add':
			if(!cssjs('check',o,c1)){o.className+=o.className?' '+c1:c1;}
		break;
		case 'remove':
			var rep=o.className.match(' '+c1)?' '+c1:c1;
			o.className=o.className.replace(rep,'');
		break;
		case 'check':
			return new RegExp("(^|\\s)" + c1 + "(\\s|$)").test(o.className);
		break;
	}
}

sfHover = function() {
	if (IS_IE) {
		var oNavUL = document.getElementById('navLevelOne');
		if (!oNavUL) return;
		var sfEls = oNavUL.getElementsByTagName("LI");
		for (var i=0; i<sfEls.length; i++) {
			sfEls[i].onmouseover=function() {
				cssjs('add',this,' sfhover selected');
			}
			sfEls[i].onmouseout=function() {
				cssjs('remove',this,' sfhover selected');
			}
		}
	}
}



addEvent(window,'load',sfHover); 


//Show  hide
function show(menuName) {
var el = document.getElementById(menuName);
el.style.display = 'block';
}

function hide(menuName) {
var el = document.getElementById(menuName);
el.style.display = 'none';
}