message: fix detect a lang name without a hyphen
diff: // detect browser's lang
  if(!lang) {
  var browserLang = getNavigatorLanguage();
  - lang = browserLang.indexOf('ru-') > -1? 'ru' : 'en';
  + lang = browserLang.indexOf('ru') > -1? 'ru' : 'en';
  setCookie('mylang', lang);
  }
  