#slideshow {
    position:relative;
    height:335px;
}

#slideshow IMG {
    position:absolute;
    top:0;
    left:0;
    z-index:2;
    opacity:0.0;
}

#slideshow IMG.active-image {
    z-index:4;
    opacity:1.0;
}

#slideshow IMG.last-active {
    z-index:3;
}