// Sub-Header Random image loader

var theImages = new Array()

theImages[0] = '../includes/header_images/driver-13.jpg'
theImages[1] = '../includes/header_images/driver-14.jpg'
theImages[2] = '../includes/header_images/driver-15.jpg'
theImages[3] = '../includes/header_images/driver-16.jpg'
theImages[4] = '../includes/header_images/driver-17.jpg'
theImages[5] = '../includes/header_images/driver-18.jpg'
theImages[6] = '../includes/header_images/driver-19.jpg'
theImages[7] = '../includes/header_images/driver-20.jpg'
theImages[8] = '../includes/header_images/driver-21.jpg'
theImages[9] = '../includes/header_images/driver-22.jpg'
theImages[10] = '../includes/header_images/driver-23.jpg'
theImages[11] = '../includes/header_images/driver-24.jpg'
theImages[12] = '../includes/header_images/driver-25.jpg'
theImages[13] = '../includes/header_images/driver-26.jpg'
theImages[14] = '../includes/header_images/driver-27.jpg'


// do not edit anything below this line

var j = 0
var p = theImages.length;
var preBuffer = new Array()
for (i = 0; i < p; i++){
   preBuffer[i] = new Image()
   preBuffer[i].src = theImages[i]
}
var whichImage = Math.round(Math.random()*(p-1));
function showImage(){
document.write('<img src="'+theImages[whichImage]+'" alt="" />');
}

<!--  End of random image loader -->