var mess = new Array('<img src="http://www.campaign-for-learning.org.uk/cfl/images/hpphoto1.gif" />','<img src="http://www.campaign-for-learning.org.uk/cfl/images/hpphoto2.gif" />','<img src="http://www.campaign-for-learning.org.uk/cfl/images/hpphoto3.gif" />','<img src="http://www.campaign-for-learning.org.uk/cfl/images/hpphoto4.gif" />','<img src="http://www.campaign-for-learning.org.uk/cfl/images/hpphoto5.gif" />','<img src="http://www.campaign-for-learning.org.uk/cfl/images/hpphoto6.gif" />','<img src="http://www.campaign-for-learning.org.uk/cfl/images/hpphoto7.gif" />','<img src="http://www.campaign-for-learning.org.uk/cfl/images/hpphoto8.gif" />','<img src="http://www.campaign-for-learning.org.uk/cfl/images/hpphoto9.gif" />','<img src="http://www.campaign-for-learning.org.uk/cfl/images/hpphoto10.gif" />','<img src="http://www.campaign-for-learning.org.uk/cfl/images/hpphoto11.gif" />','<img src="http://www.campaign-for-learning.org.uk/cfl/images/hpphoto12.gif" />');
var max = mess.length;
var num = Math.floor((Math.random() * max));
document.writeln(mess[num]);