// swap image and caption

function swapPhoto(bigSRC,theCaption) {
	var displayedCaption = document.getElementById("caption");
	displayedCaption.firstChild.nodeValue = theCaption;

    document.images.imgPhoto.src = "http://www.gorlestonbeach.org.uk/images/images2009/gallery/" + bigSRC;
    scrollTo(0,0);
    }