images = new Array(5);

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

images[1] = "<img src='images/moto_01.jpg'>";

images[2] = "<img src='images/moto_02.jpg'>";

images[3] = "<img src='images/moto_03.jpg'>";

images[4] = "<img src='images/moto_04.jpg'>";

images[5] = "<img src='images/moto_05.jpg'>";



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

document.write(images[index]);