function SelectAllBrands(formId, select)
{
	if (select)
	{
		$("form#"+formId+" span.filter-item").addClass ("filter-selected");

		var allBrands="";
		$("form#"+formId+" span.filter-item").each(
			function ()
			{
				var classes=this.className.split(' ');
				for (i in classes)
				{
					if (classes[i].charAt (0)=='A') 
					{
						allBrands+=classes[i];
						break;
					}
				}
			}
		);
		$("form#"+formId+" input#brand").attr("value", allBrands);
	}
	else
	{
		$("form#"+formId+" span.filter-item").removeClass ("filter-selected");
		$("form#"+formId+" input#brand").attr("value", "");
	}
}

function BrandFilterClicked(formId, brandId)
{
	var strBrand="A"+brandId;
	var brands=$("form#"+formId+" input#brand").attr('value');
	if (brands.indexOf (strBrand)<0)
		$("form#"+formId+" input#brand").attr('value',brands+strBrand);
	else
		$("form#"+formId+" input#brand").attr('value', brands.replace (strBrand,""));
	$("form#"+formId+" span.A"+brandId).toggleClass ("filter-selected");
}

/* Client-side access to querystring name=value pairs
	Version 1.3
	28 May 2008
	
	License (Simplified BSD):
	http://adamv.com/dev/javascript/qslicense.txt
*/
function Querystring(qs) { // optionally pass a querystring to parse
	this.params = {};
	
	if (qs == null) qs = location.search.substring(1, location.search.length);
	if (qs.length == 0) return;

// Turn <plus> back to <space>
// See: http://www.w3.org/TR/REC-html40/interact/forms.html#h-17.13.4.1
	qs = qs.replace(/\+/g, ' ');
	var args = qs.split('&'); // parse out name/value pairs separated via &
	
// split out each name=value pair
	for (var i = 0; i < args.length; i++) {
		var pair = args[i].split('=');
		var name = decodeURIComponent(pair[0]);
		
		var value = (pair.length==2)
			? decodeURIComponent(pair[1])
			: name;
		
		this.params[name] = value;
	}
}

Querystring.prototype.get = function(key, default_) {
	var value = this.params[key];
	return (value != null) ? value : default_;
}

Querystring.prototype.contains = function(key) {
	var value = this.params[key];
	return (value != null);
}