function swap(id, newsrc) {

	var theImage = locateImage(id);

	if (theImage) {

		theImage.src = newsrc;

	}

}



function locateImage(name) {

	var theImage = false;

	if (document.images) {

		theImage = document.images[name];

	}

	if (theImage) {

		return theImage;

	}

	return (false);

}