img = new Array();
img[0] = "http://www.putihmanis.com/data/putihmanis/image/top-0905-1.jpg";
img[1] = "http://www.putihmanis.com/data/putihmanis/image/top-0905-2.jpg";
img[2] = "http://www.putihmanis.com/data/putihmanis/image/top-0905-3.jpg";

n = Math.floor(Math.random()*img.length);
document.write("<img src='"+img[n]+"' border='0'>");