function image()
{
};
image = new image();
number = 0;
image[number++] = "<img src='http://graphics.epsomhospitalradio.org/imagegallery/front1.jpg' align='right' border='0'>"
image[number++] = "<img src='http://graphics.epsomhospitalradio.org/imagegallery/front2.jpg' align='right' border='0'>"
image[number++] = "<img src='http://graphics.epsomhospitalradio.org/imagegallery/front3.jpg' align='right' border='0'>"
image[number++] = "<img src='http://graphics.epsomhospitalradio.org/imagegallery/front4.jpg' align='right' border='0'>"
image[number++] = "<img src='http://graphics.epsomhospitalradio.org/imagegallery/front5.jpg' align='right' border='0'>"

increment = Math.floor(Math.random() * number);
document.write(image[increment]);