if (document.images) 
       {
        news = new Image();
        news.src = "/pict/button/b_c1on.gif";
        newsoff = new Image();
        newsoff.src = "/pict/button/b_c1off.gif";

        dist = new Image();
        dist.src = "/pict/button/b_c3on.gif";
        distoff = new Image();
        distoff.src = "/pict/button/b_c3off.gif";

        func_event = new Image();
        func_event.src = "/pict/button/b_c4on.gif";
        func_eventoff = new Image();
        func_eventoff.src = "/pict/button/b_c4off.gif";

        info = new Image();
        info.src = "/pict/button/b_c5on.gif";
        infooff = new Image();
        infooff.src = "/pict/button/b_c5off.gif";

        bookshop = new Image();
        bookshop.src = "/pict/button/b_c6on.gif";
        bookshopoff = new Image();
        bookshopoff.src = "/pict/button/b_c6off.gif";

        prayer = new Image();
        prayer.src = "/pict/button/b_c7on.gif";
        prayeroff = new Image();
        prayeroff.src = "/pict/button/b_c7off.gif";

        office = new Image();
        office.src = "/pict/button/b_c8on.gif";
        officeoff = new Image();
        officeoff.src = "/pict/button/b_c8off.gif";

        about_us = new Image();
        about_us.src = "/pict/button/b_c9on.gif";
        about_usoff = new Image();
        about_usoff.src = "/pict/button/b_c9off.gif";

  }

 function switchon(image_name)
  {
    if (document.images) {     
      image_on = eval(image_name + ".src");
              document [image_name].src = image_on;
    }
  }

  function switchoff(image_name)
  {
    if (document.images) {     
      image_off = eval(image_name + "off.src");
              document [image_name].src = image_off;
    }
  }