function PageQuery(q) {
			if(q.length > 1) this.q = q.substring(1, q.length);
			else this.q = null;
			this.keyValuePairs = new Array();
			if(q) {
			for(var i=0; i < this.q.split("&").length; i++) {
			this.keyValuePairs[i] = this.q.split("&")[i];
			}
			}
			this.getKeyValuePairs = function() { return this.keyValuePairs; }
			this.getValue = function(s) {
			for(var j=0; j < this.keyValuePairs.length; j++) {
			if(this.keyValuePairs[j].split("=")[0] == s)
			return this.keyValuePairs[j].split("=")[1];
			}
			return false;
			}
			this.getParameters = function() {
			var a = new Array(this.getLength());
			for(var j=0; j < this.keyValuePairs.length; j++) {
			a[j] = this.keyValuePairs[j].split("=")[0];
			}
			return a;
			}
			this.getLength = function() { return this.keyValuePairs.length; } 
		}
		function queryString(key){
			var page = new PageQuery(window.location.search); 
			return unescape(page.getValue(key)); 
		}
	
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