function showdiv (divobj) {
        var browser=navigator.appName;
          divobj.style.visibility = 'visible';
      }
      function hidediv (divobj) {
        var browser=navigator.appName;
          divobj.style.visibility = 'hidden';
      }



      image0 = new Image();
      image0.src = "images/home_over.jpg";

      image1 = new Image();
      image1.src = "images/contact_over.jpg";

      image2 = new Image();
      image2.src = "images/menu_over.jpg";

      image3 = new Image();
      image3.src = "images/services_over.jpg";

      image4 = new Image();
      image4.src = "images/history_over.jpg";

      image5 = new Image();
      image5.src = "images/events_over.jpg";