js platform localization

js platform localization

 var platformLanguage = navigator && (
         navigator.language ||
         navigator.browserLanguage ||
         navigator.systemLanguage ||
         navigator.userLanguage ||
         null),
     elemsRU, elemsEN;
 if (platformLanguage.match("ru") && document.getElementsByClassName) {
     elemsRU = document.getElementsByClassName("b-text_lang_ru");
     elemsEN = document.getElementsByClassName("b-text_lang_en");
     var l = elemsEN.length;
     while (l--) {
         elemsEN[l].style.display = "none";
     }
     l = elemsRU.length;
     while (l--) {
         elemsRU[l].style.display = "block";
     }
     document.title = "Сайт example.com только что создан. Содержимое появится позже";
 }