$(document).ready(function() {
	var theImages = new Array('/images/layout/header_1.jpg','/images/layout/header_2.jpg','/images/layout/header_3.jpg')
	$('#spot_header').css({'background-image' : 'url('+theImages[(Math.floor(Math.random()*theImages.length))]+')'}).hide().fadeIn("slow");
});