/* Tulane Virtual Tour Javascript by White Whale Web Services */
/* Requires jQuery and SWFObject.js*/
var have_loaded=0; // number of images which have loaded

$(document).ready(function() {
	// prep slideshow
	if(stop.images.length) {
		stop.slideshow = $('#photos').html('');
		$.each(stop.images,function() { stop.slideshow.prepend('<img src="'+this+'" alt="Virtual Tour Photo" style="display:none;"/>'); });
		stop.slideshow.find('img:last-child').show();
		if(stop.images.length>1) {
			stop.slideshow.find('img').load(function() {
				have_loaded++;
				// RM NOTE: probably prevent autoplay somewhere in here.
				if(stop.images.length==have_loaded) {
					stop.slideshow.find('img').show();
					stop.slideshow.before('<div id="controls_shadow"><div id="controls"><a id="tour_back">Previous Photo</a><a id="tour_pause" class="paused">Play/Pause</a><a id="tour_forward">Next Photo</a>');// add slideshow controls
					$('#tour_back').click(prevImage);
					stop.pause = $('#tour_pause').click(toggleSlideshow);
					$('#tour_forward').click(nextImage);
					// window.setTimeout(nextImage,3000);
				}
			});
		}
	}
});

function prevImage() {
	window.clearTimeout(stop.timer);
	stop.slideshow.children().eq(0).hide().appendTo(stop.slideshow).fadeIn(750);
	if(!stop.pause.hasClass('paused')) stop.timer = window.setTimeout(nextImage,4500);
}

function nextImage() {
	window.clearTimeout(stop.timer);
	stop.slideshow.children().eq(stop.images.length-1).fadeOut(750,function() { $(this).prependTo(stop.slideshow).show(); });
	if(!stop.pause.hasClass('paused')) stop.timer = window.setTimeout(nextImage,3000);
}

function toggleSlideshow() {
	if($(this).hasClass('paused')) stop.timer = window.setTimeout(nextImage,1000);
	else window.clearTimeout(stop.timer);
	$(this).toggleClass('paused');
}