var theVBLImages = new Array()
theVBLImages[0] = '/vbl/images/left_photo1.jpg'
theVBLImages[1] = '/vbl/images/left_photo2.jpg'
theVBLImages[2] = '/vbl/images/left_photo3.jpg'
theVBLImages[3] = '/vbl/images/left_photo4.jpg'
var j = 0
var p = theVBLImages.length;
var preBuffer = new Array()
for (i = 0; i < p; i++){
   preBuffer[i] = new Image()
   preBuffer[i].src = theVBLImages[i]
}
var whichImage = Math.round(Math.random()*(p-1));

function showVBLImage() {
	document.write('<img src="http://library.nyu.edu' + theVBLImages[whichImage] + '" alt="NYU Virtual Business Library" />');
}