.superior_menu {
    height:23px;
    float:left;
}

.superior_separador {
    background-image:url("/img/superior/divisor_links.jpg");
    height:23px;
    width:1px;
    overflow:hidden; /* IE */
    float:left;
}

#superior_prevenir {
    width:138px;
    background-image:url("/img/superior/prevenir.jpg");
    background-repeat:no-repeat;
}

a:hover #superior_prevenir {
    background-image:url("/img/superior/prevenir_hover.jpg");
    background-repeat:no-repeat;
}

#superior_nossosserv {
    width:166px;
    background-image:url("/img/superior/nossosserv.jpg");
    background-repeat:no-repeat;
}

a:hover #superior_nossosserv {
    background-image:url("/img/superior/nossosserv_hover.jpg");
    background-repeat:no-repeat;
}

#superior_dicasdesaude {
    width:153px;
    background-image:url("/img/superior/dicasdesaude.jpg");
    background-repeat:no-repeat;
}

a:hover #superior_dicasdesaude {
    background-image:url("/img/superior/dicasdesaude_hover.jpg");
    background-repeat:no-repeat;
}

#superior_nossosclientes {
    width:154px;
    background-image:url("/img/superior/nossosclientes.jpg");
    background-repeat:no-repeat;
}

a:hover #superior_nossosclientes {
    background-image:url("/img/superior/nossosclientes_hover.jpg");
    background-repeat:no-repeat;
}

#superior_faleconosco {
    width:144px;
    background-image:url("/img/superior/faleconosco.jpg");
    background-repeat:no-repeat;
}

a:hover #superior_faleconosco {
    background-image:url("/img/superior/faleconosco_hover.jpg");
    background-repeat:no-repeat;
}