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 = ""; 
  } return false; 
 } else { 
  return true; 
 }
}