var mess = new Array('<img src=http://www.jjsmarkets.com/images/photo_1.jpg>','<img src=http://www.jjsmarkets.com/images/photo_2.jpg>','<img src=http://www.jjsmarkets.com/images/photo_3.jpg>','<img src=http://www.jjsmarkets.com/images/photo_4.jpg>','<img src=http://www.jjsmarkets.com/images/photo_5.jpg>');
var max = mess.length;
var num = Math.floor((Math.random() * max));
document.writeln(mess[num]);