function popup_Display(pagename)
{
  var iframe = getElement(document, 'iframePOPUP');
  setOpacity(iframe, 0);
  iframe.setAttribute('src', pagename);
  
  var div = getElement(document, 'divPOPUP');
  div.style.visibility = 'visible';
  
  var i;
  for (i = 0; i < 25; i++)
    setTimeout("var iframe = getElement(document, 'iframePOPUP'); setOpacity(iframe, " + (i*4) + ");", i*5);
}

function popup_Close()
{
  var div = getElement(document, 'divPOPUP');
  div.style.visibility = 'hidden';

  var iframe = getElement(document, 'iframePOPUP');
  iframe.setAttribute('src', 'popup_Vide.aspx');
}