if (typeof Slide == "undefined") var Slide = new Object();

Slide = {

	/* Customizable Variables */
	time				: 3
	, refresh_banners 	: true
	, track_views 		: true
	, track_directory	: 'spectacle'


	/* Class Variables */
	, current 			: 1
	, count 			: 1
	, timer				: false
	, auto 				: false
	, t 				: false
	, page_title		: ''

	, init: function(count) {
			
			if (parseInt(count) > 0) this.count = count;

			// Store base page title, used for tracking
			this.page_title = document.title;

			return true;			
	}

	, next: function() {
	
			var go = ((this.current + 1) > this.count) ? 1 : (parseInt(this.current) + 1);
			this._go(go);
	}

	, prev: function() {
	
			var go = (this.current == 1) ? this.count : (parseInt(this.current) - 1);
			
			this._go(go);
	}

	, go: function(go) {

			this._go(go);

	}

	, toggleAuto: function() {

			if (!this.auto) {
			
				this.timer = this.time;
				
				// Turn auto on
				$('slide_nav_prev', 'slide_nav_next').invoke('addClassName', 'disabled');
				$('slide_nav_auto').update('STOP SLIDESHOW');
				$('slide_nav_auto_details').update('('+this.timer+')');
				
				this.auto 	= true;
				this.t 		= setTimeout('slide_doAuto()', 1000);						
				
			} else {
			
				// Turn auto off
				$('slide_nav_prev', 'slide_nav_next').invoke('removeClassName', 'disabled');
				$('slide_nav_auto').update('VIEW AS SLIDESHOW');
				$('slide_nav_auto_details').update('');

				this.auto 	= false;
				
			}


	}
	

	, doAuto: function() {
	
		this.t = false;
		
		if (!this.auto) return;
		
		if (this.timer === 0) {

			// Show next
			this.next();
		
		} else {	

			this.timer = (this.timer - 1);
			$('slide_nav_auto_details').update('('+this.timer+')');
			this.t = setTimeout('slide_doAuto()', 1000);
		}	
	
	
	}


	, _go: function(go) {
	
			//console.log('_go:: '+go+'/current:'+this.current+'/count:'+this.count);

			// Turn off slideshow timer
			this.t 	= null;

			// Hide current & remove thumbnail class 
			$$('.slide_image_item', '.slide_desc_item').invoke('hide');
			$$('.photos_thumbs A.current').invoke('removeClassName', 'current');

			// Show next image & add thumbnail class
			$('slide_image_'+go, 'slide_desc_'+go).invoke('show');
			$('slide_thumb_'+go).addClassName('current');

			// Navigation Buttons
			$('slide_nav_prev', 'slide_nav_next').invoke('removeClassName', 'disabled');
			if (go == 1) {
				$('slide_nav_prev').addClassName('disabled');
			} else if (go == this.count) {
				$('slide_nav_next').addClassName('disabled');
			}

			// Is slideshow on?
			if (this.auto) {

				if (go >= this.count) {

					// Turn off slideshow, we are at the end
					this.toggleAuto();
					
					this.auto = false;
					
				} else {
					// Continue slideshow
					this.auto 	= false;
					this.toggleAuto();
				}
				
			}

			if (!this.track_views && this.refresh_banners) {

				// Refresh banners manually (From sundance.js)
				if (frames['bannerTopFrame']) frames['bannerTopFrame'].location.href = frames['bannerTopFrame'].location.href;
				if (frames['bannerBtmFrame']) frames['bannerBtmFrame'].location.href = frames['bannerBtmFrame'].location.href;

			} else if (this.track_views) {
				
				// Page tracking
				Sundance.tracking.flashAction(this.track_directory, this.page_title + ' - Photo '+go, ((this.refresh_banners) ? 1 : 0));

			}

			this.current = go;
			
			return true;
	
	}

};


function slide_doAuto() {
	Slide.doAuto();
}