function rndIndexImg() {

var imagesFiles = new Array(
	'/images/photos/photo-index-facingfront.jpg',
	'/images/photos/photo-index-robot.jpg',
	'/images/photos/photo-index-excelsior.jpg',
	'/images/photos/photo-index-leftwall.jpg',
	'/images/photos/photo-index-drawers.jpg',
	'/images/photos/photo-index-facingfront2.jpg',
	'/images/photos/photo-index-backarea2.jpg',
	'/images/photos/photo-index-backarea3.jpg',
	'/images/photos/photo-index-frontarea.jpg',
	'/images/photos/photo-index-rightwall.jpg',
	'/images/photos/photo-index-sign.jpg',
	'/images/photos/photo-index-sittingarea.jpg',
	'/images/photos/photo-index-storefront.jpg'
);

var rand = Math.floor(Math.random() * imagesFiles.length);
document.getElementById('indexImg').src = imagesFiles[rand];

};