function correctPNGBackground( divId, imgURL ) // correctly handle PNG transparency in Win IE 5.5 , 6 & 7.
{
	var arVersion = navigator.appVersion.split("MSIE")
	var version = parseFloat(arVersion[1])
	if ((version >= 5.5) && (version < 7) && (document.body.filters)) 
	{
		var div = document.getElementById( divId );
		div.style.filter = "progid:DXImageTransform.Microsoft.AlphaImageLoader(src='"+imgURL+"', sizingMethod='scale')";
		div.style.background = '';
	}
}