.nav a#apollo img {background-image: url(newapolloup.gif);}
.nav a#poseidon img {background-image: url(newposeidonup.gif);}
.nav a#athena img {background-image: url(newathenaup.gif);}
.nav a#zeus img {background-image: url(newzeusup.gif);}

.nav a#apollo:hover img {background-image: url(newapollohover.gif);}
.nav a#poseidon:hover img {background-image: url(newposeidonhover.gif);}
.nav a#athena:hover img {background-image: url(newathenahover.gif);}
.nav a#zeus:hover img {background-image: url(newzeushover.gif);}


.nav a#apollo:active img {background-image: url(newapolloclick.gif);}
.nav a#poseidon:active img {background-image: url(newposeidonclick.gif);}
.nav a#athena:active img {background-image: url(newathenaclick.gif);}
.nav a#zeus:active img {background-image: url(newzeusclick.gif);}