#iconz {
 width: 760px;
 height: 67px;
 background: url(images/menuduo.jpg);
 margin: 0px auto; padding: 0;
 position: relative;
}
#iconz li {margin: 0; padding: 0; list-style: none; position: absolute; top: 0;}

#iconz li, #iconz a {height: 67px; display: block;}
#home {left: 0; width: 214px;}
#about {left: 214px; width: 106px;}
#gallery {left: 320px; width: 120px;}
#session {left: 440px; width: 150px;}
#rates {left: 580px; width: 140px;}

#home a:hover {background: transparent url(images/menuduo.jpg) -0px -68px no-repeat;}
#about a:hover {background: transparent url(images/menuduo.jpg) -214px -68px no-repeat;}
#gallery a:hover {background: transparent url(images/menuduo.jpg) -320px -68px no-repeat;}
#session a:hover {background: transparent url(images/menuduo.jpg) -440px -68px no-repeat;}
#rates a:hover {background: transparent url(images/menuduo.jpg) -580px -68px no-repeat;}