#mainNav  li.info {
    background-image:url("/files/user_upload/navigation-background/stm/Information_GS_Menue.jpg");
}
#mainNav  li.schulfamilie {
    background-image:url("/files/user_upload/navigation-background/stm/Schulfamilie_GS_Menue.jpg");
}
#mainNav  li.aktivitaeten {
    background-image:url("/files/user_upload/navigation-background/stm/Aktuelles_GS_Menue.jpg");
}
#mainNav  li.service {
    background-image:url("/files/user_upload/navigation-background/stm/Downloads_GS_Menue.jpg");
}