if (document.images)

{

   img1 = new Image();
img2 = new Image();
img3 = new Image();
img4 = new Image();
img5 = new Image();
img6 = new Image();
img7 = new Image();
img8 = new Image();
img9 = new Image();
img10 = new Image();
img11 = new Image();
img12 = new Image();

   img1.src = "images/achtergrond.gif";
   img2.src = "images/kop_01.jpg";
   img3.src = "images/kop_02.jpg";
   img4.src = "images/kop_03.jpg";
   img5.src = "images/kop_04.jpg";
   img6.src = "images/kop_05.jpg";
   img7.src = "images/kop_06.jpg";
   img8.src = "images/kop_07.jpg";
   img9.src = "images/kop_08.jpg";
   img10.src = "images/kop_09.jpg";
   img11.src = "images/kop_10.jpg";
   img12.src = "images/kop_11.jpg";
      
}