function select_lang(let){
	//alert(" "+let+" ");
	var form = document.createElement("form"), tmp;
    form.action = self.location;
    form.method = "post";
    form.id = "__id__tmp_form_for_post_submit";
    //for (var param in let) {
      tmp = document.createElement("input");
      tmp.type = "hidden";
      tmp.name = "lang_sel";
      tmp.value = let;
      form.appendChild(tmp);
    //}
    document.body.appendChild(form);
    form.submit();
}