var theImages = new Array()
theImages[0] = '../images/ontwerp/banner1.jpg'
theImages[1] = '../images/ontwerp/banner2.jpg'
theImages[2] = '../images/ontwerp/banner3.jpg'
//theImages[2] = './images/banner/3.jpg'
//theImages[3] = './images/banner/4.jpg'
//theImages[4] = './images/banner/5.jpg'
//theImages[4] = './images/banner/6.jpg'

var j = 0
var p = theImages.length;
var preBuffer = new Array()
for (i = 0; i < p; i++){
preBuffer[i] = new Image()
preBuffer[i].src = theImages[i]
}
var whichImage = Math.round(Math.random()*(p-1));
function showImage(){
document.write('<img src="'+theImages[whichImage]+'">');
}