function UrlListener () {
}
UrlListener.getPage = function () {
	return this.getHASHpar("page");
}
UrlListener.getGETpar = function (par) {
	return this.parseArg(location.search.substr(1), par);
}
UrlListener.getHASHpar = function (par) {
	return this.parseArg(location.hash.substr(1), par)
}
UrlListener.checkHash = function () {
	if (this.getPage() === false) {
		location.replace(("" + window.location).split('#')[0] + location.hash + "&page=0");
	}
}
UrlListener.deleteHASHpar = function (name) {
	var array = location.hash.split("&");
	var newHash = "";
	for (var i = 0; i < array.length; i++) {
		if (array[i].indexOf("=") == -1) continue;
		var tmp = array[i].split("=");
		if (tmp[0] != name) {
			newHash += "&" + tmp[0] + "=" + tmp[1];
		}
	}
	location.replace(("" + window.location).split('#')[0] + "#" + newHash);
}
UrlListener.parseArg = function (args, par) {
	var array = args.split("&");
	for (var i = 0; i < array.length; i++) {
		var tmp = array[i].split("=");
		if (tmp[0] == par) {
			return tmp[1];
		}
	}
	return false;
}
UrlListener.setPage = function (value) {
	this.setHASHpar("page", value);
}
UrlListener.setHASHpar = function (par, value) {
	var args = location.hash;
	if (this.getHASHpar(par) === false) {
		location.replace(("" + window.location).split('#')[0] + ((location.hash == "") ? "#" : location.hash) + "&" + par + "=" + value);
		return;
	}
	var args = args.substr(1);
	var array = args.split("&");
	var length = 0;
	for (var i = 0; i < array.length; i++) {
		if (array[i] == "") {
			//length += 1;
			continue;
		}
		//console.log(array[i]);
		var tmp = array[i].split("=");
		//console.log(tmp[0]);
		//console.log(tmp[1]);
		length += tmp[0].length;
		if (tmp[0] == par) {
			//console.log(length);
			var top = args.substr(0, length + i + 1);
			//console.log(top);
			var bottom = args.substr(length + tmp[1].length + i + 1);
			//console.log(bottom);
			location.replace(("" + window.location).split('#')[0] + "#" + top + value + bottom);
		} else {
			//console.log("Och");
			length += tmp[1].length + 1;
		}
	}
}
UrlListener.setCookie = function (name, value, expdays) {
	var expdate = new Date();
	expdate.setDate(expdate.getDate() + expdays);
	value = escape(value) + ((expdays == undefined) ? "" : "; expires=" + expdate.toUTCString());
	document.cookie = name + "=" + value;
}
UrlListener.getCookie = function (name) {
	var start = 0;		
	if ((start = document.cookie.indexOf(name + "=")) == -1)
		return false;
	var end = 0;
	var searchString = "";		
	if ((end = document.cookie.indexOf(";", start)) == -1)
		searchString = document.cookie.substring(start);
	else
		searchString = document.cookie.substring(start, end);
	return unescape(searchString.substring(searchString.indexOf("=") + 1));
}
UrlListener.removeCookie = function (name) {
	this.setCookie(name, "nothing", -1);
}