function zufall(range) {
return Math.ceil(Math.random() * 1000) % range + 1;
}

function zufallsbild1() {
var Wert = zufall(5);
document.Bild.src = Bilder[Wert-1];
}
Bilder = new Array();
Bilder = new Array(5);
Bilder = new Array("jpgs/HEAD_736x81.jpg","jpgs/HEAD_736x81_2.jpg","jpgs/HEAD_736x81_3.jpg","jpgs/HEAD_736x81_4.jpg","jpgs/HEAD_736x81_5.jpg");