function pop(div,nodeId,imageFile)
{
  var myElement = document.getElementById('popImage');
  myElement.src = imageFile;
  document.getElementById(div).style.display='block';
return false
}
function hide(div)
{
  var myElement = document.getElementById('popImage');
  myElement.src = null;
  document.getElementById(div).style.display='none';
return false
}