var theImages = new Array() 

theImages[0] = '01.jpg'
theImages[1] = '02.jpg'
theImages[2] = '03.jpg'
theImages[3] = '04.jpg'
theImages[4] = '05.jpg'
theImages[5] = '06.jpg'
theImages[6] = '07.jpg'
theImages[7] = '08.jpg'
theImages[8] = '09.jpg'
theImages[9] = '10.jpg'
theImages[10] = '11.jpg'
theImages[11] = '12.jpg'
theImages[12] = '13.jpg'
theImages[13] = '14.jpg'
theImages[14] = '15.jpg'
theImages[15] = '16.jpg'
theImages[16] = '17.jpg'
theImages[17] = '18.jpg'
theImages[18] = '19.jpg'
theImages[19] = '20.jpg'

var p = theImages.length;
var whichImage = Math.round(Math.random()*(p-1));

function showImage(){
   preBuffer = new Image()
   preBuffer.src = theImages[whichImage]

document.write('<img src="images/splash/'+theImages[whichImage]+'" class="displayed">');
}