var explosives_photo_name = new Array("19.jpg", "pn04-141-2-19.jpg", "pn02-0616-01-22.jpg");
var x = explosives_photo_name.length;
var explosives_rnd_no = Math.round((x-1)*Math.random());

var explosives_caption = new Array("INL scientists and engineers have designed a system for the remote detection of explosives within cargo trucks.", "INL scientists and engineers have designed a system for the remote detection of explosives within cargo trucks.", "INL scientists and engineers have designed a system for the remote detection of explosives within cargo trucks.");