function showPic(whichpic) {
 if(document.getElementById) {
  document.getElementById('imgPhoto').src = whichpic.href;
  document.getElementById('imgPhoto').alt = whichpic.childNodes[0].alt;
  if (whichpic.childNodes[0].title) {
   document.getElementById('caption').childNodes[0].nodeValue = whichpic.childNodes[0].title;
  } else {
   document.getElementById('caption').childNodes[0].nodeValue = whichpic.childNodes[0].nodeValue;
  }
  return false;
 } else {
  return true;
 }
}