photo = new Array(6);
photo[0] = "photo1.gif";
photo[1] = "photo2.gif";
photo[2] = "photo3.gif";
photo[3] = "photo4.gif";
photo[4] = "photo5.gif";
photo[5] = "photo6.gif";

//calculate a random index
index = Math.floor(Math.random() * photo.length);

//display the quotation
document.write("<img src=\"/Sites/7/templates/images/" + photo[index] + "\" alt=\"Photograph\">");