/* 
 	Edit by Giorgio Tsiotas
	email: tsiotas@gmail.com
 */
function chgLng(lll){
	var qs  = new Querystring();

	if (qs.get("Lng") == null) {
		if (qs.len >0) location = location + "&Lng="+lll;
		else 			 location = location + "?Lng="+lll;
	}
	else {
		lngNr = location.search.substring(location.search.indexOf('Lng=')).substring(4)
	 	location  =  location.search.replace("Lng="+lngNr,"Lng="+lll);
	}
	return false
}

function Querystring(qs) {
	this.params = new Object()
	this.get=Querystring_get
	this.len= 0
	if (qs == null) qs=location.search.substring(1,location.search.length)
	if (qs.length == 0) return
	this.len = qs.length
	qs = qs.replace(/\+/g, ' ')
	var args = qs.split('&')
	for (var i=0;i<args.length;i++) {
		var value;
		var pair = args[i].split('=')
		var name = unescape(pair[0])
		if (pair.length == 2) value = unescape(pair[1])
		else value = name
		this.params[name] = value
	}
}

function Querystring_get(key, default_) {
	if (default_ == null) default_ = null;
	var value=this.params[key]
	if (value==null) value=default_;
	return value
}