function switchMenu(obj) {
var el = document.getElementById(obj);
if ( el.style.display != 'none' ) {
	el.style.display = 'none';
	}
		else {
		el.style.display = '';
		}
}

function $() {
	var elements = new Array();
	for (var i = 0; i < arguments.length; i++) {
	var element = arguments[i];
	if (typeof element == 'string')
	element = document.getElementById(element);
	if (arguments.length == 1)
	return element;
	elements.push(element);
	}
	return elements;
}

function collapseAll(objs) {
	var i;
	for (i=0;i<objs.length;i++ ) {
	objs[i].style.display = 'none';
	}
}

function pageLoad() {
collapseAll($('slider1','slider2','slider3','slider4','slider5','slider6','slider7','slider8'));
}
addEvent(window,'load',pageLoad);

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];
	}
}

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);
//-->