random image
by Nick Hulea
HTML
<div id='a'>A</div>
<div id='b'>B</div>
JavaScript
var random = Math.random();
function random_imglink(arr, id){
var ry = Math.floor(random*arr.length);
document.getElementById(id).style.backgroundImage = "url('" + arr[ry] + "')";
}
var myimages = [
"http://img1.jpg.to"],
myimagesA = ["http://img1b.jpg.to"];
random_imglink(myimages, 'a');
random_imglink(myimages, 'b');