function preLoadBadges() {
  img_off = new Image();
  img_on = new Image();

  img_off.src="http://www.aboutus.org/scripts/showBadge.php?s=off";
  img_on.src="http://www.aboutus.org/scripts/showBadge.php?s=on";
}

function handleOverBadge(img) {
  img.src = img_on.src;
  img.onclick = goThere;
}

function handleOutBadge(img) {
  img.src = img_off.src;
  img.onclick = goThere;
}

function goThere() {
  url = "http://www.aboutus.org/" + document.domain;

  window.open(url, 'aboutus');
  return false;
}