var mess = new Array('<img src="images/gallery/photo4_sm.jpg" alt="Photo from the TAFI Gallery">','<img src="images/gallery/photo5_sm.jpg" alt="Photo from the TAFI Gallery">','<img src="images/gallery/photo10_sm.jpg" alt="Photo from the TAFI Gallery">');
var max = mess.length;
var num = Math.floor((Math.random() * max));
document.writeln(mess[num]);