body.home #head { 
    background-image: url(head-home_en.gif); 
}
body.unt #head { 
    background-image: url(head-unt_en.gif);
}
body.standort #head { 
    background-image: url(head-standort_en.gif);
}
body.region #head { 
    background-image: url(head-region_en.gif);
}
body.wifoe #head { 
    background-image: url(head-wifoe_en.gif);
}
body.forschung #head { 
    background-image: url(head-forschung.gif);
}