a.photo-nav-left {
    display: block;
    width: 27px;
    height: 27px;
    background-image: url(arr1-left.gif);
    margin: 0 auto;
}
a.photo-nav-left:hover {
    background-image: url(arr1o-left.gif);
}


a.photo-nav-right {
    display: block;
    width: 27px;
    height: 27px;
    background-image: url(arr1-right.gif);
    margin: 0 auto;
}
a.photo-nav-right:hover {
    background-image: url(arr1o-right.gif);
}


a.photo-nav-close {
    display: block;
    width: 27px;
    height: 27px;
    background-image: url(close1.gif);
    margin: 0 auto;
}
a.photo-nav-close:hover {
    background-image: url(close1o.gif);
}