if (document.getElementById) { window.onload = swap };
function swap() {
var numimages=5;
rndimg = new Array("img/foto-1.jpg",
"img/foto-2.jpg",
"img/foto-3.jpg",
"img/foto-4.jpg",
"img/foto-5.jpg");
x=(Math.floor(Math.random()*numimages));
randomimage=(rndimg[x]);
var tg=document.getElementById("h-gold-in");
tg.style.background = 'url('+ randomimage +') top left no-repeat';
}