function switch_lang(lang) {
	var current=window.location.href;
	var new_loc;
	
	/*if (!lang || lang==2 || lang==0) {
		a = '5';
	}
	else {
		PromoShow();
		return;
	}*/
	
	if(/\/l\//.test(current))
		new_loc=current.replace(/\/l\/\w*/,"/l/"+lang);
	/*else if(/\/l=/.test(current))
		new_loc=current.replace(/\?l=\w* /,"?l="+lang);
	else if(/\?/.test(current))
		new_loc=current+"&l="+lang;*/
	else
		new_loc=current+"/l/"+lang;
	window.location.replace(new_loc);
}