// JavaScript Document
Event.observe(window,'load',function(){
	if ($("product-sort")) {
		$("product-sort").onchange = function() {
		 // get the current URL
			var sParam = this.value;
			var url = window.location.toString(); //get the parameters 
			url.match(/\?(.+)$/); 
			var base = url.substring(0,url.indexOf("?")+1);
			var params = RegExp.$1;
			// split up the query string and store in an 
			// associative array 
			var params = params.split("&"); 
			var queryStringList = {}; 
			for(var i=0;i<params.length;i++) { 
				var tmp = params[i].split("=");
				if(i!=0 && tmp[0]!="s") {
					base = base + "&";
				}
				if(tmp[0]!="s") {
					base = base + params[i];
				}
			}
			base = base + "&s=" + sParam;
			window.location.href = base;
		}
	}
},false)