/* Client-side access to querystring name=value pairs
	Version 1.3
	28 May 2008
	
	License (Simplified BSD):
	http://adamv.com/dev/javascript/qslicense.txt
*/
function Querystring(qs) { // optionally pass a querystring to parse
	this.params = {};
	
	if (qs == null) qs = location.search.substring(1, location.search.length);
	if (qs.length == 0) return;

// Turn <plus> back to <space>
// See: http://www.w3.org/TR/REC-html40/interact/forms.html#h-17.13.4.1
	qs = qs.replace(/\+/g, ' ');
	var args = qs.split('&'); // parse out name/value pairs separated via &
	
// split out each name=value pair
	for (var i = 0; i < args.length; i++) {
		var pair = args[i].split('=');
		var name = decodeURIComponent(pair[0]);
		
		var value = (pair.length==2)
			? decodeURIComponent(pair[1])
			: name;
		
		this.params[name] = value;
	}
}

Querystring.prototype.get = function(key, default_) {
	var value = this.params[key];
	return (value != null) ? value : default_;
}

Querystring.prototype.contains = function(key) {
	var value = this.params[key];
	return (value != null);
}

//I8N
//USA, UK, APAC, France, Italy, Germany, Spain, Netherlands, Sweden, Norway, Dutch, and Finland

var langsAllowed =["en_US", "en_GB", "en_AU","fr_FR","it_IT","da_DK","de_DE","es_ES","nl_NL","sv_SE","nb_NO","nl_BE","fi_FI"];
var defaultLang = "en_US";
var COOKIE_NAME ="SHREK4EVERGAME_LANG";
var lang = getLangFromURL();
var siteXML="xml/"+lang+"/site.xml";



function validateLang(langCanditate){
	
	for (var i = langsAllowed.length - 1; i >= 0; i--){
		if(String(langCanditate) == String(langsAllowed[i])){
			return true;
		}
	};
	lang = defaultLang;
	return false;
}

function getLangFromURL(){
	var uri;
	var qs;
	var val;
	var f;
	var currentLang;
	var ad = document.location.toString();
	
	if(ad.indexOf("?lang")!=-1){
		uri = ad.split('?');
		qs = new Querystring(uri[1]);
		val = qs.get("lang");
		f = val.toString();
		currentLang = f.split('#')[0];	
		
		if(!validateLang(currentLang)){
			currentLang = defaultLang;
		}
		
	}else{
		
		currentLang = defaultLang;
	}
	
	return currentLang;	
}

function changeLanguageSite(newlang){
	
	var ad = document.location.toString();
	//var dp = (ad.split("#")[1]==undefined)?"" : "#" + ad.split("#")[1];
	var dp = "#/home";
	
	if (validateLang(newlang)) {
		if (ad.indexOf("?lang") == -1) {
			
			val = ad.split("#")[0] + "?lang=" + newlang + dp;

		}else{
			val = ad.split("?lang=")[0] + "?lang=" + newlang + dp;
			
		}
		lang = newlang;
		createCookie(COOKIE_NAME,lang,999);
		document.location = val;		
	}
	
}

function createCookie(name,value,days) {
	if (days) {
		var date = new Date();
		date.setTime(date.getTime()+(days*24*60*60*1000));
		var expires = "; expires="+date.toGMTString();
	}
	else var expires = "";
	document.cookie = name+"="+value+expires+"; path=/";
}

function createCookieHours(name,value,hours) {
	if (hours) {
		var date = new Date();
		date.setTime(date.getTime()+(hours*60*60*1000));
		var expires = "; expires="+date.toGMTString();
	}
	else var expires = "";
	document.cookie = name+"="+value+expires+"; path=/";
}

function readCookie(name) {
	var nameEQ = name + "=";
	var ca = document.cookie.split(';');
	for(var i=0;i < ca.length;i++) {
		var c = ca[i];
		while (c.charAt(0)==' ') c = c.substring(1,c.length);
		if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
	}
	return null;
}

function eraseCookie(name) {
	createCookie(name,"",-1);
}