function ChangeLanguage(languageCode, pageID)
{
	var oqs = new Querystring();
	var qs = document.location.search.substring(1, location.search.length);

	var req = new JsHttpRequest();
	req.onreadystatechange = function()
	{
		if (req.readyState == 4)
		{
			if (req.responseJS && req.responseJS.Answer && req.responseJS.Answer.Error)
			{
				alert(req.responseJS.Answer.Error);
				return;
			}
			document.location.href = req.responseJS.Answer;
		}
	}
	req.caching = false;
	req.open('POST', '/get_path.php', true);
	req.send({ PageID: pageID, LangCode: languageCode });
}

function Querystring()
{
	this.params = new Object()
	this.get = GetQuerystring;

	var 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 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 GetQuerystring(key, default_)
{
	// This silly looking line changes UNDEFINED to NULL
	if (default_ == null) default_ = null;

	var value = this.params[key]
	if (value == null) value = default_;

	return value
}