var a = "<img src=\"grafik/topbilleder/";
var b = ".jpg\" border=\"0\" width=\"598\" height=\"99\" >";

var rnumb = "";
var img = "";

rnumb += Math.floor(Math.random()*2);
img = rnumb;


if (img == "0") {
document.write(a+ '03' +b);
}

if (img == "1") {
document.write(a+ '04' +b);
}