if (document.images) {
  image1on = new Image();
  image1on.src = "home2a.gif";

  image1off = new Image();
  image1off.src = "home1a.gif";

  image2on = new Image();
  image2on.src = "about2a.gif";

  image2off = new Image();
  image2off.src = "about1a.gif";

  image3on = new Image();
  image3on.src = "help2a.gif";

  image3off = new Image();
  image3off.src = "help1a.gif";


  image4on = new Image();
  image4on.src = "sitemp2a.gif";


  image4off = new Image();
  image4off.src = "sitemp1a.gif"; 

  image5on = new Image();
  image5on.src = "contact2a.gif";

  image5off = new Image();
  image5off.src = "contact1a.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");
    }
  }
}

// Establish year
now = new Date();
year = now.getYear();
if (year < 2000) {year = year +1900};