var mess = new Array('<img src="/images/rob-snyder-01.jpg" width="876" height="407" />','<img src="/images/rob-snyder-02.jpg" width="876" height="407" />','<img src="/images/rob-snyder-03.jpg" width="876" height="407" />','<img src="/images/rob-snyder-04.jpg" width="876" height="407" />');
var max = mess.length;
var num = Math.floor((Math.random() * max));
document.writeln(mess[num]);