/** getElementsByClassName **/

function getElementsByClassName(node, classname){
    var a = [];
    var re = new RegExp('\\b' + classname + '\\b');
    var els = node.getElementsByTagName("*");
    for(var i=0,j=els.length; i<j; i++)
        if(re.test(els[i].className))a.push(els[i]);
    return a;
}

/** Clases CSS **/

function hasClass(el, className){
	var re = new RegExp('(?:^|\\s+)' + className + '(?:\\s+|$)');
    return re.test(el.className);
}

function addClass(el, className){
	if (hasClass(el, className)) { return; } // already present
	el.className = [el.className, className].join(' ');
}

function removeClass(el, className){
    var re = new RegExp('(?:^|\\s+)' + className + '(?:\\s+|$)', 'g');
	if (!hasClass(el, className)) {
		return; // not present
	}                 
	var c = el.className;
    el.className = c.replace(re, ' ');
    if ( hasClass(el, className) ) { // in case of multiple adjacent
        removeClass(el, className);
    }
}

/** ypSlideOutMenus **/

ypSlideOutMenu.Registry = []
ypSlideOutMenu.aniLen = 200
ypSlideOutMenu.hideDelay = 125
ypSlideOutMenu.minCPUResolution = 10

function ypSlideOutMenu(id, dir, left, top, width, height){
	this.ie  = document.all ? 1 : 0
	this.ns4 = document.layers ? 1 : 0
	this.dom = document.getElementById ? 1 : 0

	if (this.ie || this.ns4 || this.dom) {
		this.id			 = id
		this.dir		 = dir
		this.orientation = dir == "left" || dir == "right" ? "h" : "v"
		this.dirType	 = dir == "right" || dir == "down" ? "-" : "+"
		this.dim		 = this.orientation == "h" ? width : height
		this.hideTimer	 = false
		this.aniTimer	 = false
		this.open		 = false
		this.over		 = false
		this.startTime	 = 0

		this.gRef = "ypSlideOutMenu_"+id
		eval(this.gRef+"=this")

		ypSlideOutMenu.Registry[id] = this

		if (document.all){
			mWidth = document.body.clientWidth;
		} else if (document.layers){
			mWidth = window.innerWidth;
		} else if (document.getElementById){
			mWidth = window.innerWidth;
		}
		currentLeft = left;
		newLeft = parseInt(siteWidth/2) - currentLeft;
		newLeft = parseInt(mWidth/2) - newLeft;

		if (mWidth >= siteWidth){
				left = newLeft;
		} else{}

		newleft = left + "px";

		var d = document
		d.write('<style type="text/css">')
		d.write('#' + this.id + 'Container { visibility:hidden; ')
		d.write('z-index:65; ')
		d.write('left:' + newleft +'; ')
		d.write('top:' + top + 'px; ')
		d.write('overflow:hidden; }')
		d.write('#' + this.id + 'Container, #' + this.id + 'Content { position:absolute; ')
		d.write('width:' + width + 'px; ')
		d.write('height:' + height + 'px; ')
		d.write('clip:rect(0px, ' + width + 'px, ' + height + 'px, 0px); ')
		d.write('}')
		d.write('</style>')

		this.load()
	}
}

ypSlideOutMenu.prototype.load = function(){
	var d = document
	var lyrId1 = this.id + "Container"
	var lyrId2 = this.id + "Content"
	var obj1 = this.dom ? d.getElementById(lyrId1) : this.ie ? d.all[lyrId1] : d.layers[lyrId1]
	if (obj1) var obj2 = this.ns4 ? obj1.layers[lyrId2] : this.ie ? d.all[lyrId2] : d.getElementById(lyrId2)
	var temp

	if (!obj1 || !obj2) {
		window.setTimeout(this.gRef + ".load()", 100)
	}
	else {
		this.container	= obj1
		this.menu		= obj2
		this.style		= this.ns4 ? this.menu : this.menu.style
		this.homePos	= eval("0" + this.dirType + this.dim)
		this.outPos		= 0
		this.accelConst	= (this.outPos - this.homePos) / ypSlideOutMenu.aniLen / ypSlideOutMenu.aniLen

		if (this.ns4) this.menu.captureEvents(Event.MOUSEOVER | Event.MOUSEOUT);

		this.endSlide()
	}
}

ypSlideOutMenu.showMenu = function(id){
	var reg = ypSlideOutMenu.Registry
	var obj = ypSlideOutMenu.Registry[id]

	if (obj.container) {
		obj.over = true

		if (obj.hideTimer) { reg[id].hideTimer = window.clearTimeout(reg[id].hideTimer) }

		if (!obj.open && !obj.aniTimer) reg[id].startSlide(true)
	}
}

ypSlideOutMenu.hideMenu = function(id){
	var obj = ypSlideOutMenu.Registry[id]
		if (obj.container) {
			if (obj.hideTimer) window.clearTimeout(obj.hideTimer)
			obj.hideTimer = window.setTimeout("ypSlideOutMenu.hide('" + id + "')", ypSlideOutMenu.hideDelay);
		}
}

ypSlideOutMenu.hide = function(id){
	var obj = ypSlideOutMenu.Registry[id]
	obj.over = false

	if (obj.hideTimer) window.clearTimeout(obj.hideTimer)

	obj.hideTimer = 0

	if (obj.open && !obj.aniTimer) obj.startSlide(false)
}

ypSlideOutMenu.prototype.startSlide = function(open){
	this[open ? "onactivate" : "ondeactivate"]()
	this.open = open
	if (open) this.setVisibility(true)
	this.startTime = (new Date()).getTime()
	this.aniTimer = window.setInterval(this.gRef + ".slide()", ypSlideOutMenu.minCPUResolution)
}

ypSlideOutMenu.prototype.slide = function(){
	var elapsed = (new Date()).getTime() - this.startTime
	if (elapsed > ypSlideOutMenu.aniLen) this.endSlide()
	else {
		var d = Math.round(Math.pow(ypSlideOutMenu.aniLen-elapsed, 2) * this.accelConst)
		if (this.open && this.dirType == "-")		d = -d
		else if (this.open && this.dirType == "+")	d = -d
		else if (!this.open && this.dirType == "-")	d = -this.dim + d
		else										d = this.dim + d

		this.moveTo(d)
	}
}

ypSlideOutMenu.prototype.endSlide = function(){
	this.aniTimer = window.clearTimeout(this.aniTimer)
	this.moveTo(this.open ? this.outPos : this.homePos)
	if (!this.open) this.setVisibility(false)
	if ((this.open && !this.over) || (!this.open && this.over)) {
		this.startSlide(this.over)
	}
	if ((!this.open) && (this.id == 'cart')){
		changeObjectProperty('cartCrumbs', 'backgroundColor', 'transparent');
		var ua = navigator.userAgent.toLowerCase();
		if ((ua.indexOf("msie") != -1) && (parseFloat(navigator.appVersion.split("MSIE")[1]) < 7) && (ua.indexOf("opera") == -1) && (ua.indexOf("webtv") == -1)){
			changeObjectProperty('size','visibility','visible');
			changeObjectProperty('sizelist','visibility','visible');
		}
	}
}

ypSlideOutMenu.prototype.setVisibility = function(bShow){
	var s = this.ns4 ? this.container : this.container.style
	s.visibility = bShow ? "visible" : "hidden"
}
ypSlideOutMenu.prototype.moveTo = function(p){
	this.style[this.orientation == "h" ? "left" : "top"] = this.ns4 ? p : (p) + "px"
}
ypSlideOutMenu.prototype.getPos = function(c){
	return parseInt(this.style[c])
}

ypSlideOutMenu.prototype.onactivate	= function() { }
ypSlideOutMenu.prototype.ondeactivate = function() { }

/** addEvent **/

function addEvent(elm, evType, fn, useCapture){
//x-browser event handling function written by Scott Andrew
	if(elm.addEventListener){
		elm.addEventListener(evType, fn, useCapture);
		return true;
	}else if(elm.attachEvent){
			var r = elm.attachEvent('on' + evType, fn);
			//EventCache.add(elm, evType, fn);
			return r;
	}else{
			elm['on' + evType] = fn;
	}
}

/** element JQuery **/

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;
}