function changeLang(lang) {
	var url = parent.location.toString();
	var patt = new RegExp("^http://[a-z0-9.\-]*/*(no_cache/)?((da|se|uk|de))?/?");
	var url_path = '';
	if (patt.test(url)) {
		url_path = url.replace(RegExp.lastMatch, "");
	}
	parent.location = '/' + lang + '/' + url_path;
}