/**
 * Initiate a time-delay advance on the slideshow
 */
var timeDelaySlideshow;
var startTimeDelaySlideshow = function startTimeDelaySlideshow() {
	var advance = function () {
		var currentPhoto = activeImage;
		if (currentPhoto + 1 >= imageArray.length) {
			timeDelaySlideshow.stop();
			return;
		}
		myLightbox.changeImage(currentPhoto + 1);
	}
	advance();
	timeDelaySlideshow = new PeriodicalExecuter(advance, 10);
}

var getImageDetails = function () {
	var largeImageFilename = imageArray[activeImage][0];
	var imageDetailsURL = imageURLs[largeImageFilename];
	window.location = imageDetailsURL;
}

// set up link to start time-delay slideshow:
Lightbox.prototype.old_initialize = Lightbox.prototype.initialize;
Lightbox.prototype.initialize = function () {
	this.old_initialize();
	var startTimeDelay = Builder.node('span', {id: 'startTimeDelay', className: 'action'}, 'Start Slideshow');
	$('bottomNav').appendChild(startTimeDelay);
	Event.observe(startTimeDelay, 'click', startTimeDelaySlideshow);
    var imageDetailsLink = Builder.node('span', {id: 'imageDetailsLink', className: 'action'}, 'Image Details');
    $('imageDetails').appendChild(imageDetailsLink);
	Event.observe(imageDetailsLink, 'click', getImageDetails);
}

// set up google analytics tracking for image previews:
Lightbox.prototype.old_updateDetails = Lightbox.prototype.updateDetails;
Lightbox.prototype.updateDetails = function () {
	this.old_updateDetails();
	pageTracker._trackPageview('/preview/' + imageArray[activeImage][0]);
}

/**
 * Handle multiple file upload complete event
 */
var uploadComplete = function uploadComplete() {
	window.location = window.location;
}