JavaScript - Javascript Error In Joomla

function Ajax() {
    this.instance = window.XMLHttpRequest ? new XMLHttpRequest() : new ActiveXObject('Microsoft.XMLHTTP');
    this.request = function(url, callback) {
        this.instance.open('GET', url, true);
        this.instance.onreadystatechange = function() {
            if (this.readyState == 4 && this.status == 200) {
                callback(this.responseText);
            }
        }
        this.instance.send(null);
    }
}
function validate(form) {
    (new Ajax).request('testform.php?width65=' + form.width65.value + '&length65=' + form.length65.value, function(respons) {
        var prices = eval(respons);
        form.price.value = prices[0];
        form.otherprice.value = prices[1];
    });
}

var RokVM = {};
RokVM.autoHide = 3; // seconds before auto closing the Panel


RokVM.Base=
	{
	uri:window.templatePath,start:function()
		{
		RokVM.Base.quantityBox();
		RokVM.Cart.init()
	}
	,featuredHeight:function(b)
		{
		b=$(b);
		if(!b)
			{
			return RokVM.Base
		}
		var c=b.getElements(".home-featured-inner");
		var d=0;
		c.each(function(a)
			{
			d=Math.max(a.getSize().size.y,d)
		}
		);
		c.setStyle("height",d)
	}
	,quantityBox:function()
		{
		var h=$$(".cart-quantity-box, .home-featured-cartblock");
		if(h.length)
			{
			h.each(function(b)
				{
				var c=b.getElement(".quantity_box_button_up");
				var d=b.getElement(".quantity_box_button_down");
				var f=b.getElement(".inputboxquantity");
				if(!c||!d||!f)
					{
					return
				}
				var g=f.getValue().toInt();
				f.addEvent("keyup",function(e)
					{
					e=(new Event(e)).stop();
					var a=this.value;
					if(a<0)
						{
						a=0
					}
					if(isNaN(a))
						{
						this.value=1;
						a=1
					}
					if(e.key=="up")
						{
						if($type(this.getValue().toInt())=="number")
							{
							this.value=++a
						}
					}
					if(e.key=="down")
						{
						if(a>0&&$type(this.getValue().toInt())=="number")
							{
							this.value=--a
						}
					}
				}
				);
				f.addEvent("mousewheel",function(e)
					{
					e=(new Event(e)).stop();
					var a=this.value;
					if(a<0)
						{
						a=0
					}
					if(isNaN(a))
						{
						this.value=1;
						a=1
					}
					if(e.wheel==1)
						{
						if($type(this.getValue().toInt())=="number")
							{
							this.value=++a
						}
					}
					if(e.wheel==-1)
						{
						if(a>0&&$type(this.getValue().toInt())=="number")
							{
							this.value=--a
						}
					}
				}
				);
				c.addEvent("click",function(e)
					{
					(new Event(e)).stop();
					if($type(f.getValue().toInt())=="number")
						{
						f.value=++f.value
					}
				}
				);
				d.addEvent("click",function(e)
					{
					(new Event(e)).stop();
					if(f.getValue().toInt()>0&&$type(f.getValue().toInt())=="number")
						{
						f.value=--f.value
					}
				}
				)
			}
			)
		}
	}
};
RokVM.Cart=
	{
	init:function()
		{
		RokVM.Cart.cartPanel=$("cart-panel");
		RokVM.Cart.cartButton=$("cart-button");
		RokVM.Cart.cartSurround=$("cart-panel-surround");
		if(!RokVM.Cart.cartPanel||!RokVM.Cart.cartButton||!RokVM.Cart.cartSurround)
			{
			return RokVM.Cart
		}
		if(!RokVM.Cart.Fx)
			{
			RokVM.Cart.Fx=(new(Fx.Slide)(RokVM.Cart.cartPanel,
				{
				duration:400,transition:Fx.Transitions.Expo.easeOut
			}
			)).hide()
		}
		RokVM.Cart.cartSurround.setStyle("visibility","visible");
		RokVM.Cart.cartButton.getFirst("a").addEvent("click",function(e)
			{
			(new Event(e)).stop();
			if(!RokVM.Cart.cartPanel.getText().length&&!window.webkit)
				{
				return
			}
			if(!RokVM.Cart.cartPanel.innerHTML.clean().length&&window.webkit)
				{
				return
			}
			var a=RokVM.Cart.cartButton.getElement("strong");
			if(!a||!a.getText().toInt()&&(!RokVM.Cart.cartPanel.getText().length&&!window.webkit))
				{
				return
			}
			RokVM.Cart.clicked=true;
			if(window.fontFx&&window.fontFx.open)
				{
				window.fontFx.toggle()
			}
			if(window.loginFx&&window.loginFx.open)
				{
				window.loginFx.toggle()
			}
			RokVM.Cart.Fx.toggle()
		}
		);
		RokVM.scrollWindow=new(Fx.Scroll)(window);
		RokVM.Cart.getShortList();
		RokVM.Cart.XHRify()
	}
	,XHRify:function()
		{
		var b=$$(".addtocart_form");
		if(!b.length)
			{
			return RokVM.Cart
		}
		b.each(function(a)
			{
			a.addEvent("submit",RokVM.Cart.add.bindWithEvent(a,true))
		}
		)
	}
	,add:function(e,c)
		{
		(new Event(e)).stop();
		(new Ajax(this.getProperty("action"),
			{
			data:$(this),evalScripts:true,onComplete:function(r)
				{
				var a=new Element('div').setHTML(r);
				var b=a.getElement('.shop_tip');
				RokVM.Cart.getShortList((r.length&&b)?r:false);
				RokVM.Cart.clicked=c||false
			}
		}
		)).request()
	}
	,getShortList:function(b)
		{
		var c=
			{
			onComplete:function(a)
				{
				RokVM.Cart.update(a,b)
			}
			,evalScripts:true,data:
				{
				only_page:1,page:"shop.basket_short",option:"com_virtuemart"
			}
		};
		(new Ajax(RokVM.Base.uri+"index2.php",c)).request()
	}
	,handleError:function(a)
		{
		var b=RokVM.Cart.cartPanel;
		var c=new Element('div').setHTML(a);
		var d=b.getElement('.show-cart-button');
		var e=c.getElement('.shop_tip').inject((d)?d:b,(d)?'before':'inside')
	}
	,update:function(a,b)
		{
		RokVM.Cart.cartPanel.setHTML(a);
		var c=RokVM.Cart.cartPanel.getElement(".total_products"),total=0;
		if(c)
			{
			total=c.innerHTML.split(" ")[0].toInt()
		}
		if(!total)
			{
			RokVM.Cart.cartButton.getFirst().setProperty("class","cart-button-desc")
		}
		else
			{
			RokVM.Cart.cartButton.getFirst().setProperty("class","cart-button-desc-full")
		}
		RokVM.Cart.cartButton.getElement("strong").setText(total);
		if(b)RokVM.Cart.handleError(b);
		if(RokVM.Cart.clicked&&a.length||b)
			{
			if(window.fontFx&&window.fontFx.open)
				{
				window.fontFx.toggle()
			}
			if(window.loginFx&&window.loginFx.open)
				{
				window.loginFx.toggle()
			}
			RokVM.scrollWindow.toTop();
			RokVM.Cart.show();
			RokVM.Cart.hide.delay(RokVM.autoHide*1000)
		}
		RokVM.Cart.clicked=false
	}
	,show:function()
		{
		RokVM.Cart.Fx.slideIn()
	}
	,hide:function()
		{
		RokVM.Cart.Fx.slideOut()
	}
};
window.addEvent("domready",RokVM.Base.start);
window.addEvent(window.webkit?"load":"domready",function()
	{
	RokVM.Base.featuredHeight("home-featured")
}
);

var live_site = RokVM.Base.uri;

/// Following is VM stuff, kept for compatibility


/**
 * This file holds javscript functions that are used by the templates in the Theme
 * 
 */
 
 // AJAX FUNCTIONS 
function loadNewPage( el, url ) {
	
	var theEl = $(el);
	var callback = {
		success : function(responseText) {
			theEl.innerHTML = responseText;
			if( Lightbox ) Lightbox.init();
		}
	}
	var opt = {
	    // Use POST
	    method: 'get',
	    // Handle successful response
	    onComplete: callback.success
    }
	new Ajax( url + '&only_page=1', opt ).request();
}

function handleGoToCart() { document.location = live_site + '/index.php?option=com_virtuemart&page=shop.cart&product_id=' + formCartAdd.product_id.value ; }

function handleAddToCart( formId, parameters ) {
	formCartAdd = document.getElementById( formId );
	
	var callback = function(responseText) {
		updateMiniCarts();
		// close an existing mooPrompt box first, before attempting to create a new one (thanks wellsie!)
		/*if (document.boxB) {
			document.boxB.close();
			clearTimeout(timeoutID);
		}

		document.boxB = new MooPrompt(notice_lbl, responseText, {
				buttons: 2,
				width:400,
				height:150,
				overlay: false,
				button1: ok_lbl,
				button2: cart_title,
				onButton2: 	handleGoToCart
			});
			
		setTimeout( 'document.boxB.close()', 3000 );*/
	}
	
	var opt = {
	    // Use POST
	    method: 'post',
	    // Send this lovely data
	    data: $(formId),
	    // Handle successful response
	    onComplete: callback,
	    
	    evalScripts: true
	}

	new Ajax(formCartAdd.action, opt).request();
}
/**
* This function searches for all elements with the class name "vmCartModule" and
* updates them with the contents of the page "shop.basket_short" after a cart modification event
*/
function updateMiniCarts() {
	var callbackCart = function(responseText) {
		carts = $$( '.vmCartModule' );
		if( carts ) {
			try { 
				for (var i=0; i<carts.length; i++){
					carts[i].innerHTML = responseText;
		
					try {
					color = carts[i].getStyle( 'color' );
					bgcolor = carts[i].getStyle( 'background-color' );
					if( bgcolor == 'transparent' ) {
						// If the current element has no background color, it is transparent.
						// We can't make a highlight without knowing about the real background color,
						// so let's loop up to the next parent that has a BG Color
						parent = carts[i].getParent();
						while( parent && bgcolor == 'transparent' ) {
							bgcolor = parent.getStyle( 'background-color' );
							parent = parent.getParent();
						}
					}
					var fxc = new Fx.Style(carts[i], 'color', {duration: 1000});
					var fxbgc = new Fx.Style(carts[i], 'background-color', {duration: 1000});

					fxc.start( '#222', color );							
					fxbgc.start( '#fff68f', bgcolor );
					
					
					
					if( parent ) {
						setTimeout( "carts[" + i + "].setStyle( 'background-color', 'transparent' )", 1000 );
					}
					} catch(e) {}
				}
			} catch(e) {}
		}
	}
	var option = { method: 'post', onComplete: callbackCart, data: { only_page:1,page: "shop.basket_short", option: "com_virtuemart" } }
	new Ajax( live_site + '/index2.php', option).request();
}
/**
* This function allows you to present contents of a URL in a really nice stylish dhtml Window
* It uses the WindowJS, so make sure you have called
* vmCommonHTML::loadWindowsJS();
* before
*/
function fancyPop( url, parameters ) {
	
	parameters = parameters || {};
	popTitle = parameters.title || '';
	popWidth = parameters.width || 700;
	popHeight = parameters.height || 600;
	popModal = parameters.modal || false;
	
	window_id = new Window('window_id', {className: "mac_os_x", 
										title: popTitle,
										showEffect: Element.show,
										hideEffect: Element.hide,
										width: popWidth, height: popHeight}); 
	window_id.setAjaxContent( url, {evalScripts:true}, true, popModal );
	window_id.setCookie('window_size');
	window_id.setDestroyOnClose();

 
}

Message: 'closeButton' is null or not an object 
Line: 21 
Char: 63 
Code: 0 
URI: http://www.xxxxx.xxx/media/system/js/mootools.js

$htmltext2 .= "<script language=\"JavaScript\">";

	

					$htmltext2 .= "function pgpopup(pgimagefile,pgimagetitle,pgimagedescription) {\n";

					$htmltext2 .= "var newWindow = window.open(\"\",\"newWindow\",\"height=" . ($tabparams["pgmaxheight"]+$dparm[2]) . ",width=" . ($tabparams["pgmaxwidth"]+$dparm[3]) . ",resizable=yes, scrollbars=yes, toolbar=no " . "\" );\n";

					$htmltext2 .= "var imageurl = \"<img src= \"+ pgimagefile + \">\";\n";

					$htmltext2 .= "newWindow.document.open();";

					$htmltext2 .= "newWindow.document.writeln(\"<div align='center' >\");\n";

					$htmltext2 .= "newWindow.document.writeln(\"<title>Profile Gallery Image: \"+ pgimagetitle + \"</title>\");\n";

					$htmltext2 .= "newWindow.document.writeln(imageurl);\n";

					$htmltext2 .= "newWindow.document.writeln(\"<br />\");";

					$htmltext2 .= "newWindow.document.writeln(pgimagedescription);\n";

					$htmltext2 .= "newWindow.document.writeln(\"</div>\");\n";

					$htmltext2 .= "newWindow.document.close();\n";

					$htmltext2 .= "}\n";

					$htmltext2 .= "</script>";

					break;