nature = new Image();
nature.src = "img/NATURE.jpg";     
nature_over = new Image();
nature_over.src = "img/NATURE-over.jpg";

people = new Image();
people.src = "img/PEOPLE.jpg";     
people_over = new Image();
people_over.src = "img/PEOPLE-over.jpg";

architecture = new Image();
architecture.src = "img/ARCHITECTURE.jpg";     
architecture_over = new Image();
architecture_over.src = "img/ARCHITECTURE-over.jpg";

reportage = new Image();
reportage.src = "img/REPORTAGE.jpg";     
reportage_over = new Image();
reportage_over.src = "img/REPORTAGE-over.jpg";

art = new Image();
art.src = "img/ART.jpg";     
art_over = new Image();
art_over.src = "img/ART-over.jpg";

patterns = new Image();
patterns.src = "img/PATTERNS.jpg";     
patterns_over = new Image();
patterns_over.src = "img/PATTERNS-over.jpg";

travel = new Image();
travel.src = "img/TRAVEL.jpg";     
travel_over = new Image();
travel_over.src = "img/TRAVEL-over.jpg";

about = new Image();
about.src = "img/ABOUT-US.jpg";     
about_over = new Image();
about_over.src = "img/ABOUT-US-over.jpg";

//Gallery-Links 
//index für jede Seite(!): 8
gallerynature = new Image();
gallerynature.src = "img/gallerylink_nature_up.jpg";
gallerynature_over = new Image();
gallerynature_over.src = "img/gallerylink_nature_over.jpg";

gallerypeople = new Image();
gallerypeople.src = "img/gallerylink_people_up.jpg";
gallerypeople_over = new Image();
gallerypeople_over.src = "img/gallerylink_people_over.jpg";

galleryarchitecture = new Image();
galleryarchitecture.src = "img/gallerylink_architecture_up.jpg";
galleryarchitecture_over = new Image();
galleryarchitecture_over.src = "img/gallerylink_architecture_over.jpg";

galleryreportage = new Image();
galleryreportage.src = "img/gallerylink_reportage_up.jpg";
galleryreportage_over = new Image();
galleryreportage_over.src = "img/gallerylink_reportage_over.jpg";

galleryart = new Image();
galleryart.src = "img/gallerylink_art_up.jpg";
galleryart_over = new Image();
galleryart_over.src = "img/gallerylink_art_over.jpg";

gallerypattern = new Image();
gallerypattern.src = "img/gallerylink_pattern_up.jpg";
gallerypattern_over = new Image();
gallerypattern_over.src = "img/gallerylink_pattern_over.jpg";

gallerytravel = new Image();
gallerytravel.src = "img/gallerylink_travel_up.jpg";
gallerytravel_over = new Image();
gallerytravel_over.src = "img/gallerylink_travel_over.jpg";

function rollover (Bildnr, Bildobjekt) {
  window.document.images[Bildnr].src = Bildobjekt.src;
}