// JavaScript Document
var mess = new Array('<img src="images2/banners/exelon_banner_2.jpg" />','<img src="images2/banners/exelon_banner_3.jpg" />','<img src="images2/banners/exelon_banner_4.jpg" />','<img src="images2/banners/exelon_banner_5.jpg" />');
var max = mess.length;
var num = Math.floor((Math.random() * max));
document.writeln(mess[num]);