function lang_set_local(a) {
  var url = SETTINGS['ROOT_SUFFIX']+'/ajax/intl/save_locale.php';
  http.open('GET', url + '?ln=' + a, true);
  http.send(null);
  http.onreadystatechange = function () {
    if (http.status == 200) {
      if (http.readyState == 4) {
        document.location.href = SETTINGS['URL_SITE'];
      } else {}
    } else {}
  }
}