/*
  **********************************************************
  ** Description: URL parser
  **
  ** (c) Jiri Tyr 2007-2007
  **********************************************************
*/


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));
}