var theImages = new Array()

theImages[0] = '1.jpg'
theImages[1] = '2.jpg'
theImages[2] = '3.jpg'
theImages[3] = '4.jpg'
theImages[4] = '5.jpg'
theImages[5] = '6.jpg'
theImages[6] = '7.jpg'
theImages[7] = '8.jpg'
theImages[8] = '9.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 j = 0
var p = theImages.length;
var whichImage = Math.round(Math.random()*(p-1));

function showImage(){
document.write('<img src="images/spalshImages/'+theImages[whichImage]+'">');
}