function showIt (whichpic) { 
  if (document.getElementById) { 
    document.getElementById('main_image').src = whichpic.href; 
  if (whichpic.title) { 
  	document.getElementById('desc').innerHTML = whichpic.title; 
  } else { 
  	document.getElementById('desc').innerHTML = ""; 
  } 
  return false; 
  } else { 
  return true; 
  } 
}