function QueryString(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; 
	} 
};