var front_image = new Array(
	"../lubbockonline/images/masthead/front.jpg",
	"../lubbockonline/images/masthead/front1.jpg",
	"../lubbockonline/images/masthead/front2.jpg"
);

var random_index = Math.floor(Math.random() * front_image.length);

document.write('<img src="' + front_image[random_index] + '" border="0" alt="" />');