#lbPrevLink:hover {
    background: transparent url(../img/prev.gif) no-repeat 0% 15%;
}
#lbNextLink:hover {
    background: transparent url(../img/next.gif) no-repeat 100% 15%;
}
#lbCloseLink {
    width: 160px;
    height: 24px;
    background: transparent url(../img/close.gif) no-repeat center;
}