function showCanvas (picurl,picdesc) {
	if(document.getElementById){
		document.getElementById('placeholder').src = picurl;
		document.getElementById('desc').childNodes[0].nodeValue = picdesc;
		document.getElementById('canvas').style.visibility = "visible";
	}
}

function hideCanvas (){	
  document.getElementById('canvas').style.visibility = "hidden";
}


/*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 = whichpic.childNodes[0].nodeValue;
  }
  return false;
 } else {
  return true;
 }
}*/