function showRandomImage() {
	var numImages;
	var imageToShow;
	var imageArrary = new Array();
	imageArrary[0] = 'images/JD_1.jpg'
	imageArrary[1] = 'images/JP_1.jpg'
	imageArrary[2] = 'images/JP_2.jpg'
	imageArrary[3] = 'images/ND_1.jpg'
	imageArrary[4] = 'images/ND_2.jpg'
	imageArrary[5] = 'images/SF_1.jpg'
	imageArrary[6] = 'images/SF_2.jpg'
	imageArrary[7] = 'images/SF_3.jpg'
	imageArrary[8] = 'images/SF_4.jpg'
	imageArrary[9] = 'images/SF_5.jpg'
	imageArrary[10] = 'images/SF_6.jpg'
	numImages = imageArrary.length;
	imageToShow = Math.round(Math.random()*(numImages-1));
	document.write('<img src="'+imageArrary[imageToShow]+'">');
}