var theImages = new Array() 
		theImages[0] = 'images/1.jpg'
		theImages[1] = 'images/4.jpg'
		theImages[2] = 'images/5.jpg'
		theImages[3] = 'images/6.jpg'
		theImages[4] = 'images/7.jpg'
		theImages[5] = 'images/8.jpg'
		theImages[6] = 'images/9.jpg'
		theImages[7] = 'images/10.jpg'
		theImages[8] = 'images/3.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 src="'+theImages[whichImage]+'" alt="USGS at work" align="right" hspace="10"/>')
			}