function bgPNGFix(targetId)
{
	var userAgent = navigator.userAgent.toLowerCase();
	if(/msie/.test(userAgent))
	{
		var obj = document.getElementById(targetId);
		var bgImage = obj.currentStyle.backgroundImage;
	 	var src = bgImage.substring(5,bgImage.length-2);
	 	obj.style.filter = "progid:DXImageTransform.Microsoft.AlphaImageLoader(src='" + src + "')";
		obj.style.backgroundImage = "url(./blank.gif )";
	}
}