#lbPrevLink:hover {
    background: transparent url(../bilder/prev.gif) no-repeat 0% 15%!important;
}
#lbNextLink:hover {
    background: transparent url(../bilder/next.gif) no-repeat 100% 15%!important;
}
#lbCloseLink {
    width: 66px;
    height: 22px;
    background: transparent url(../bilder/zu.gif) no-repeat center!important;
}