var theImages = new Array(); // do not change this

	theImages[0] = 'assets/images/store_front_ottawa.jpg';
	theImages[1] = 'assets/images/store_front_sandwich.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]+'">');
	}