// swap image and caption

function swapPhoto(photoSRC,theCaption, photoAlt, photoWidth, photoHeight) {
	var displayedCaption = document.getElementById("caption");
	displayedCaption.firstChild.nodeValue = theCaption;
	document.images.imgPhoto.alt = photoAlt;
    document.images.imgPhoto.height = photoHeight;
    document.images.imgPhoto.width = photoWidth;
    document.images.imgPhoto.src = "../smallphotos/" + photoSRC + ".jpg";
    }