(function($){  //  // DIV must be style="display:none;"      //  $.fn.chk_userlanguage = function() {      /* check if <style=display:none;> not set to that element */      if (!this.is(":hidden")) { this.hide(); };        /* get browser default lang */       if (navigator.userLanguage) {          baseLang = navigator.userLanguage.substring(0,2).toLowerCase();      } else {          baseLang = navigator.language.substring(0,2).toLowerCase();      }        /* language match */      switch(baseLang)      {          case "de":              /* german */              this.slideDown("slow");              break;          case "en":              /* english */              break;          case "ja":              /* japanese */              break;          case "zh":              /* 中文 */              break;          default:              /* default no match */      }  };    })(jQuery);