#slideshow 
{
    position:relative;
    height:68px;
    width:150px;
}

#slideshow IMG 
{
    position:absolute;
    top:18px;
    left:100px;
    z-index:8;
}

#slideshow IMG.active 
{
    z-index:10;
}

#slideshow IMG.last-active 
{
    z-index:9;
}