#header {
 position:relative;
}
#bannergallery {
 position:absolute;
 left: 430px;
 top:37px;
 z-index:0;
}

#bannergallery a {
 float:left;
 position:absolute;
}

#bannergallery a img {
 border:none;
}

#bannergallery a.show {
 z-index:50;
}