images = new Array(9);

images[0] = "<img src='images/hdr_img1.jpg'";

images[1] = "<img src='images/hdr_img2.jpg'";

images[2] = "<img src='images/hdr_img3.jpg'";

images[3] = "<img src='images/hdr_img4.jpg'";

images[4] = "<img src='images/hdr_img5.jpg'";

images[5] = "<img src='images/hdr_img6.jpg'";

images[6] = "<img src='images/hdr_img7.jpg'";

images[7] = "<img src='images/hdr_img8.jpg'";

images[8] = "<img src='images/hdr_img9.jpg'";

images[9] = "<img src='images/hdr_img10.jpg'";

index = Math.floor(Math.random() * images.length);

document.write(images[index]);