.star_score {
    background: url(images/stark2.png);
    width: 160px;
    height: 21px;
    position: relative;
}

    .star_score a {
        height: 21px;
        display: block;
        text-indent: -999em;
        position: absolute;
        left: 0;
    }

        .star_score a:hover {
            background: url(images/star.png);
            left: 0;
        }

        .star_score a.clibg {
            background: url(images/star.png);
            left: 0;
        }

#starttwo .star_score {
    background: url(images/star_2.png);
}

    #starttwo .star_score a:hover {
        background: url(images/star_ovr.png);
        left: 0;
    }

    #starttwo .star_score a.clibg {
        background: url(images/star.png);
        left: 0;
    }