// JavaScript Document

var image = new Array(); 

image[0] = 'images/header_bg.jpg' ; 

//image[2] = 'images/header_bg3.jpg' ; 

//image[3] = 'images/header_bg4.jpg' ; 

//image[4] = 'images/header_bg5.jpg' ; 



var index = Math.floor(Math.random() * image.length);

document.write('<style>');

document.write('.head {background-color: #FFFFFF; background: url('+ image[index] +') left top no-repeat; }');

document.write('</style>');