function showPic( whichpic )
{
  if( document.getElementById )
  {
    document.getElementById('placeholder').src = whichpic.href;

    document.getElementById('desc').firstChild.nodeValue =
      whichpic.alt
        ? whichpic.alt
        : whichpic.firstChild.nodeValue;

    return false;
  }
  else
  {
    return true;
  }
}