function opacitize(which, opacity)
{  var element = parent.document.getElementById(which);

   element.style.display = 'block';
   
   // IE/Win
   element.style.filter = "alpha(opacity:"+opacity+")";
	
   // Safari < 1.2, Konqueror
   element.style.KHTMLOpacity = opacity/100;
	
   // Older Mozilla and Firefox
   element.style.MozOpacity = opacity/100;
	
   // Safari 1.2, newer Firefox and Mozilla, CSS3
   element.style.opacity = opacity/100;
}