function showPic (whichpic) {
   if (document.getElementById) {
      document.getElementById('placeholder').src = whichpic.href;
      if (whichpic.title) {
         document.getElementById('desc').childNodes[0].nodeValue = whichpic.title;
      } else {
         document.getElementById('desc').childNodes[0].nodeValue = "Untitled";
      }
      return false;
   } else {
      return false;
   }
}