function move_next() {
	var photo = document.getElementById("photo");
	var txt = document.getElementById("txt");
	var lnk = document.getElementById("lnk");
	if (i == photos.length-1)
		i = 0;
	else
		++i;
	photo.src = "/data/photo_highlights/" + photos[i][0];
	txt.innerHTML = photos[i][1];
	if (photos[i][2] != "")
		txt.innerHTML = txt.innerHTML + "&nbsp;&nbsp;<a href=\"http://" + photos[i][2] + "\" id=\"lnk\">Learn more &gt;&gt;</a>";
	t=setTimeout("move_next()",8000);
}
		
function moveback() {
	var photo = document.getElementById("photo");
	var txt = document.getElementById("txt");
	var lnk = document.getElementById("lnk");
	--i;
	if (i == -1)
		i = photos.length-1;
	photo.src = "/data/photo_highlights/" + photos[i][0];
	txt.innerHTML = photos[i][1];
	if (photos[i][2] != "")
		txt.innerHTML = txt.innerHTML + "&nbsp;&nbsp;<a href=\"http://" + photos[i][2] + "\" id=\"lnk\">Learn more &gt;&gt;</a>";
}