var headimages = new Array() // erklæring af array af billeder
//
headimages[0] = 'headerimages/head1.jpg'
headimages[1] = 'headerimages/head2.jpg'
headimages[2] = 'headerimages/head3.jpg'
headimages[3] = 'headerimages/head4.jpg'
headimages[4] = 'headerimages/head5.jpg'
headimages[5] = 'headerimages/head6.jpg'
headimages[6] = 'headerimages/head7.jpg'
headimages[7] = 'headerimages/head8.jpg'
headimages[8] = 'headerimages/head9.jpg'
headimages[9] = 'headerimages/head10.jpg'
headimages[10] = 'headerimages/head11.jpg'
headimages[11] = 'headerimages/head12.jpg'
headimages[12] = 'headerimages/head13.jpg'
headimages[13] = 'headerimages/head14.jpg'
headimages[14] = 'headerimages/head15.jpg'
headimages[15] = 'headerimages/head16.jpg'
headimages[16] = 'headerimages/head17.jpg'

// Nix pille herefter
var j = 0
var p = headimages.length;
var preBuffer = new Array()
for (i = 0; i < p; i++){
   preBuffer[i] = new Image()
   preBuffer[i].src = headimages[i]
}
var whichImage = Math.round(Math.random()*(p-1));
// Udskriv html for billede
function showImage(){
document.write('<img src="'+headimages[whichImage]+'" class="headerimg">');
}