backgrounds = new Array();
backgrounds[1] = 'images/backgrounds/ecke.jpg';
backgrounds[2] = 'images/backgrounds/rot.jpg';
backgrounds[3] = 'images/backgrounds/klappe.jpg';
backgrounds[4] = 'images/backgrounds/behringer.jpg';
backgrounds[5] = 'images/backgrounds/lampe.jpg';
backgrounds[6] = 'images/backgrounds/lampe2.jpg';
backgrounds[7] = 'images/backgrounds/gewirr.jpg';
backgrounds[8] = 'images/backgrounds/doepfer.jpg';
backgrounds[9] = 'images/backgrounds/drums.jpg';
backgrounds[10] = 'images/backgrounds/drums2.jpg';
backgrounds[11] = 'images/backgrounds/glocken.jpg';
backgrounds[12] = 'images/backgrounds/dunkel.jpg';
backgrounds[13] = 'images/backgrounds/revox.jpg';
backgrounds[14] = 'images/backgrounds/keys.jpg';
backgrounds[15] = 'images/backgrounds/ecke2.jpg';
backgrounds[16] = 'images/backgrounds/leuchten.jpg';
backgrounds[17] = 'images/backgrounds/lava.jpg';

function preloadImages(imagesArray) {
  if (document.images) {
    myImages = new Array();
    for (i=1; i < backgrounds.length; i++) {
      myImages[i] = new Image();
      myImages[i].src = imagesArray[i];
    }
  }
}