img = new Array();
  img['galleryon'] = new Image();
  img['galleryon'].src = "/imagesx/navigation/gallery_on.gif";
  img['galleryoff'] = new Image();
  img['galleryoff'].src = "/imagesx/navigation/gallery_off.gif";

  img['exhibitionson'] = new Image();
  img['exhibitionson'].src = "/imagesx/navigation/exhibitions_on.gif";
  img['exhibitionsoff'] = new Image();
  img['exhibitionsoff'].src = "/imagesx/navigation/exhibitions_off.gif";

  img['stockon'] = new Image();
  img['stockon'].src = "/imagesx/navigation/stock_on.gif";
  img['stockoff'] = new Image();
  img['stockoff'].src = "/imagesx/navigation/stock_off.gif";

  img['assignmentson'] = new Image();
  img['assignmentson'].src = "/imagesx/navigation/assignments_on.gif";
  img['assignmentsoff'] = new Image();
  img['assignmentsoff'].src = "/imagesx/navigation/assignments_off.gif";

  img['newson'] = new Image();
  img['newson'].src = "/imagesx/navigation/news_on.gif";
  img['newsoff'] = new Image();
  img['newsoff'].src = "/imagesx/navigation/news_off.gif";

  img['abouton'] = new Image();
  img['abouton'].src = "/imagesx/navigation/about_on.gif";
  img['aboutoff'] = new Image();
  img['aboutoff'].src = "/imagesx/navigation/about_off.gif";

  img['contacton'] = new Image();
  img['contacton'].src = "/imagesx/navigation/contact_on.gif";
  img['contactoff'] = new Image();
  img['contactoff'].src = "/imagesx/navigation/contact_off.gif";

  img['shopon'] = new Image();
  img['shopon'].src = "/imagesx/navigation/shop_on.gif";
  img['shopoff'] = new Image();
  img['shopoff'].src = "/imagesx/navigation/shop_off.gif";

  img['carton'] = new Image();
  img['carton'].src = "/imagesx/navigation/cart_on.gif";
  img['cartoff'] = new Image();
  img['cartoff'].src = "/imagesx/navigation/cart_off.gif";

  img['searchon'] = new Image();
  img['searchon'].src = "/imagesx/navigation/search_on.gif";
  img['searchoff'] = new Image();
  img['searchoff'].src = "/imagesx/navigation/search_off.gif";

  function ion(imgname) {
    document.images[imgname].src = img[imgname+'on'].src;
  }

  function ioff(imgname) {
    document.images[imgname].src = img[imgname+'off'].src;
  }

  function popUp(URL) {
    day = new Date();
    id = day.getTime();
    eval("page" + id + " = window.open(URL, '" + id + "', 'toolbar=0,scrollbars=0,location=0,statusbar=0,menubar=0,resizable=0,width=420,height=420');");
  }