if (document.images) {
  aboutuson = new Image();
  aboutuson.src = "images/menu/aboutus_on.gif";
  aboutusoff = new Image();
  aboutusoff.src = "images/menu/aboutus_off.gif";
  
  whatwedoon = new Image();
  whatwedoon.src = "images/menu/whatwedo_on.gif";
  whatwedooff = new Image();
  whatwedooff.src = "images/menu/whatwedo_off.gif";
  
  contactuson = new Image();
  contactuson.src = "images/menu/contactus_on.gif";
  contactusoff = new Image();
  contactusoff.src = "images/menu/contactus_off.gif";
  
  photogalleryon = new Image();
  photogalleryon.src = "images/menu/photogallery_on.gif";
  photogalleryoff = new Image();
  photogalleryoff.src = "images/menu/photogallery_off.gif";
  
  employmenton = new Image();
  employmenton.src = "images/menu/employment_on.gif";
  employmentoff = new Image();
  employmentoff.src = "images/menu/employment_off.gif";

  loginon = new Image();
  loginon.src = "images/menu/login_on.gif";
  loginoff = new Image();
  loginoff.src = "images/menu/login_off.gif";

  homeon = new Image();
  homeon.src = "images/menu/home_on.orig.gif";
  homeoff = new Image();
  homeoff.src = "images/menu/home_off.orig.gif";
  
  homeindexon = new Image();
  homeindexon.src = "images/menu/home_on.gif";
  homeindexoff = new Image();
  homeindexoff.src = "images/menu/home_off.gif";
  
  articleson = new Image();
  articleson.src = "images/menu/articles_on.gif";
  articlesoff = new Image();
  articlesoff.src = "images/menu/articles_off.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");
    }
  }
}