images = new Array(3);

images[0] = "assets/images/rotator/Upfront-Screen1.png";
images[1] = "assets/images/rotator/Upfront-Screen2.png";
images[2] = "assets/images/rotator/Upfront-Screen3.png";

index = Math.floor(Math.random() * images.length);
document.write("<a href='about/index.php'><img src='" +images[index]+ "' /></a>");