var theImages = new Array()

theImages[0] = 'http://www.umich.edu/~sswd/images/internal-headerpic00.jpg'
theImages[1] = 'http://www.umich.edu/~sswd/images/internal-headerpic01.jpg'
theImages[2] = 'http://www.umich.edu/~sswd/images/internal-headerpic02.jpg'
theImages[3] = 'http://www.umich.edu/~sswd/images/internal-headerpic03.jpg'
theImages[4] = 'http://www.umich.edu/~sswd/images/internal-headerpic04.jpg'
theImages[5] = 'http://www.umich.edu/~sswd/images/internal-headerpic05.jpg'
theImages[6] = 'http://www.umich.edu/~sswd/images/internal-headerpic06.jpg'
theImages[7] = 'http://www.umich.edu/~sswd/images/internal-headerpic07.jpg'
theImages[8] = 'http://www.umich.edu/~sswd/images/internal-headerpic08.jpg'
theImages[9] = 'http://www.umich.edu/~sswd/images/internal-headerpic09.jpg'
theImages[10] = 'http://www.umich.edu/~sswd/images/internal-headerpic10.jpg'
theImages[11] = 'http://www.umich.edu/~sswd/images/internal-headerpic11.jpg'
theImages[12] = 'http://www.umich.edu/~sswd/images/internal-headerpic12.jpg'
theImages[13] = 'http://www.umich.edu/~sswd/images/internal-headerpic13.jpg'
theImages[14] = 'http://www.umich.edu/~sswd/images/internal-headerpic14.jpg'
theImages[15] = 'http://www.umich.edu/~sswd/images/internal-headerpic15.jpg'


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 alt="" src="'+theImages[whichImage]+'">');
}