var theImages = new Array()

theImages[0] = '/images/header1.jpg'
theImages[1] = '/images/header2.jpg'
theImages[2] = '/images/header3.jpg'
theImages[3] = '/images/header4.jpg'
theImages[4] = '/images/header5.jpg'
theImages[5] = '/images/header6.jpg'
theImages[6] = '/images/header7.jpg'
theImages[7] = '/images/header8.jpg'
theImages[8] = '/images/header9.jpg'
theImages[9] = '/images/header10.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]+'">');
}