if (document.images) {
  studioon = new Image();
  studioon.src = "menu/studio_.gif";
  studiooff = new Image();
  studiooff.src = "menu/studio.gif";
  homeon = new Image();
  homeon.src = "menu/home_.gif";
  homeoff = new Image();
  homeoff.src = "menu/home.gif";
  equipmenton = new Image();
  equipmenton.src = "menu/equipment_.gif";
  equipmentoff = new Image();
  equipmentoff.src = "menu/equipment.gif";
  masteringon = new Image();
  masteringon.src = "menu/mastering_.gif";
  masteringoff = new Image();
  masteringoff.src = "menu/mastering.gif";
  referenceson = new Image();
  referenceson.src = "menu/references_.gif";
  referencesoff = new Image();
  referencesoff.src = "menu/references.gif";
  locationon = new Image();
  locationon.src = "menu/location_.gif";
  locationoff = new Image();
  locationoff.src = "menu/location.gif";
  contacton = new Image();
  contacton.src = "menu/contact_.gif";
  contactoff = new Image();
  contactoff.src = "menu/contact.gif";
  linkson = new Image();
  linkson.src = "menu/links_.gif";
  linksoff = new Image();
  linksoff.src = "menu/links.gif";
  guestbookon = new Image();
  guestbookon.src = "menu/guestbook_.gif"
  guestbookoff = new Image();
  guestbookoff.src = "menu/guestbook.gif"
}

function changeImages() {
  if (document.images) {
    for (var i=0; i<changeImages.arguments.length; i+=2) {
      document[changeImages.arguments[i]].src = eval(changeImages.arguments[i+1] + ".src");
    }
  }
}