.rollover {
    position: relative;
    white-space: nowrap;
    display: block;
    margin: 0;
    padding: 0;
}

.rollover a{
    display: block;
    float: left;
    text-decoration: none;
}

.rollover img{
    border: 0
}

* html a:hover{
    visibility:visible
}

.rollover a:hover img{
    visibility:hidden
}

.rollover span{
    position: absolute;
    margin: 0px;
    padding: 0px;
    cursor: pointer;
}