* html .png
{
    width: expression(this.firstChild.width);
    filter: expression("progid:DXImageTransform.Microsoft.AlphaImageLoader(src='"+
            this.firstChild.src+"', sizingMethod='image')");

    background: expression("transparent url("+
            this.firstChild.src.replace(".png", ".gif")+") no-repeat");
    background: none !important;
	cursor:hand;
}

* html .png img
{
    behavior: expression(this.style.visibility="hidden");
}