/*** set the width and height to match your images **/

#advertise {
    position:relative;
    height:113px;
	
}

#advertise a {
    position:absolute;
    top:0;
    left:0;
    z-index:8;
    opacity:0.0;
}

#advertise a.active {
    z-index:10;
    opacity:1.0;
}

#advertise a.last-active {
    z-index:9;
}