home_n = new Image();
home_n.src = lang + "btn_000.gif";
home_h = new Image();
home_h.src = lang + "btn_001.gif";

centers_n = new Image();
centers_n.src = lang + "btn_010.gif";
centers_h = new Image();
centers_h.src = lang + "btn_011.gif";

courses_n = new Image();
courses_n.src = lang + "btn_020.gif";
courses_h = new Image();
courses_h.src = lang + "btn_021.gif";

safaris_n = new Image();
safaris_n.src = lang + "btn_030.gif";
safaris_h = new Image();
safaris_h.src = lang + "btn_031.gif";

fleet_n = new Image();
fleet_n.src = lang + "btn_120.gif";
fleet_h = new Image();
fleet_h.src = lang + "btn_121.gif";

sports_n = new Image();
sports_n.src = lang + "btn_110.gif";
sports_h = new Image();
sports_h.src = lang + "btn_111.gif";

conservation_n = new Image();
conservation_n.src = lang + "btn_040.gif";
conservation_h = new Image();
conservation_h.src = lang + "btn_041.gif";

booking_n = new Image();
booking_n.src = lang + "btn_050.gif";
booking_h = new Image();
booking_h.src = lang + "btn_051.gif";

downloads_n = new Image();
downloads_n.src = lang + "btn_060.gif";
downloads_h = new Image();
downloads_h.src = lang + "btn_061.gif";

guestbook_n = new Image();
guestbook_n.src = lang + "btn_070.gif";
guestbook_h = new Image();
guestbook_h.src = lang + "btn_071.gif";

divesites_n = new Image();
divesites_n.src = lang + "btn_080.gif";
divesites_h = new Image();
divesites_h.src = lang + "btn_081.gif";

about_n = new Image();
about_n.src = lang + "btn_090.gif";
about_h = new Image();
about_h.src = lang + "btn_091.gif";

contact_n = new Image();
contact_n.src = lang + "btn_100.gif";
contact_h = new Image();
contact_h.src = lang + "btn_101.gif";

login_n = new Image();
login_n.src = lang + "btn_130.gif";
login_h = new Image();
login_h.src = lang + "btn_131.gif";

function BildWechsel (Bildname, Bildobjekt) {
    document.images[Bildname].src = Bildobjekt.src;
}