//
// lang spec api
//
		
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)); 
}

function getCurrentLanguage() {
	return embCurrentLanguage;
}

function getDesiredLanguage() {
	var desLocale = queryString('locale');
	var desLang = desLocale.substring(0,2); 
	return desLang;
}

function redirectToURL(targetUrl) {
	 window.location.replace(targetUrl);
}

function embCheckLanguage() {
	var desiredLang = getDesiredLanguage();
	if ( getCurrentLanguage() != desiredLang ) {
		var desiredLangURL = embLangUrlArray[desiredLang];
		// if desired language available
		if (desiredLangURL != null) {
			redirectToURL(desiredLangURL);
		}
	}
}