jQuery(document).ready(function($) {
	// We only want these styles applied when javascript is enabled
	$('div.content').css('display', 'block');

	// Initially set opacity on thumbs and add
	// additional styling for hover effect on thumbs
	var onMouseOutOpacity = 0.67;
	$('#thumbs ul.thumbs li, div.navigation a.pageLink').opacityrollover({
		mouseOutOpacity:   onMouseOutOpacity,
		mouseOverOpacity:  1.0,
		fadeSpeed:         'fast',
		exemptionSelector: '.selected'
	});
	
	// Initialize Advanced Galleriffic Gallery
	 gallery = $('#thumbs').galleriffic({
		delay:                     2500,
		numThumbs:                 7,
		preloadAhead:              -1,
		enableTopPager:            false,
		enableBottomPager:         false,
		imageContainerSel:         '#slideshow',
		controlsContainerSel:      '#controls',
		captionContainerSel:       '#caption',
		loadingContainerSel:       '#loading',
		renderSSControls:          true,
		renderNavControls:         true,
		playLinkText:              'Play Slideshow',
		pauseLinkText:             'Pause Slideshow',
		prevLinkText:              '‹ Previous Photo',
		nextLinkText:              'Next Photo ›',
		nextPageLinkText:          'Next ›',
		prevPageLinkText:          '‹ Prev',
		enableHistory:             true,
		autoStart:                 false,
		syncTransitions:           false,
		defaultTransitionDuration: 900,
		onSlideChange:             function(prevIndex, nextIndex) {
			// 'this' refers to the gallery, which is an extension of $('#thumbs')
			this.find('ul.thumbs').children()
				.eq(prevIndex).fadeTo('fast', onMouseOutOpacity).end()
				.eq(nextIndex).fadeTo('fast', 1.0);

			// Update the photo index display
			this.$captionContainer.find('p.photo-index')
				.html('Photo '+ (nextIndex+1) +' of '+ this.data.length);
					
		},
		
		onTransitionIn:				function(slide) {
			
			
			update_sharelinks();
			slide.fadeTo('fast', 1.0);
			return false;
		
		},
		
		onPageTransitionOut:       function(callback) {
			this.fadeTo('fast', 0.0, callback);
		},
		
		onPageTransitionIn:        function() {
			var prevPageLink = this.find('a.prev').css('visibility', 'hidden');
			var nextPageLink = this.find('a.next').css('visibility', 'hidden');
			
			// Show appropriate next / prev page links
			if (this.displayedPage > 0)
				prevPageLink.css('visibility', 'visible');

			var lastPage = this.getNumPages() - 1;
			if (this.displayedPage < lastPage)
				nextPageLink.css('visibility', 'visible');

			this.fadeTo('fast', 1.0);
			
		}

	});

	/**************** Event handlers for custom next / prev page links **********************/

	gallery.find('a.prev').click(function(e) {
		gallery.previousPage();
		e.preventDefault();
	});

	gallery.find('a.next').click(function(e) {
		gallery.nextPage();
		e.preventDefault();
	});
	
	

	/****************************************************************************************/

	/**** Functions to support integration of galleriffic with the jquery.history plugin ****/

	// PageLoad function
	// This function is called when:
	// 1. after calling $.historyInit();
	// 2. after calling $.historyLoad();
	// 3. after pushing "Go Back" button of a browser
	function pageload(hash) {
		// alert("pageload: " + hash);
		// hash doesn't contain the first # character.
		if(hash) {
			$.galleriffic.gotoImage(hash);
		} else {
			gallery.gotoIndex(0);
		}
	}

	// Initialize history plugin.
	// The callback is called at once by present location.hash. 
	$.historyInit(pageload, "advanced.html");

	// set onlick event for buttons using the jQuery 1.3 live method
	$("a[rel='history']").live('click', function(e) {
		if (e.button != 0) return true;

		var hash = this.href;
		hash = hash.replace(/^.*#/, '');

		// moves to a new page. 
		// pageload is called at once. 
		// hash don't contain "#", "?"
		$.historyLoad(hash);

		return false;
	});


	/****************************************************************************************/
});

function strpos (haystack, needle, offset) {
    // http://kevin.vanzonneveld.net
    // +   original by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
    // +   improved by: Onno Marsman    
    // +   bugfixed by: Daniel Esteban
    // +   improved by: Brett Zamir (http://brett-zamir.me)
    // *     example 1: strpos('Kevin van Zonneveld', 'e', 5);
    // *     returns 1: 14

    var i = (haystack+'').indexOf(needle, (offset || 0));
    return i === -1 ? false : i;
}

function update_sharelinks() {
	
	var photo_id = $('ul.thumbs li.selected a.thumb').attr('href');
	photo_id = photo_id.substr(1);
	
	// Base urls
	var facebook = 'http://api.addthis.com/oexchange/0.8/forward/facebook/offer';
	var twitter = 'http://api.addthis.com/oexchange/0.8/forward/twitter/offer';
	var email = 'http://api.addthis.com/oexchange/0.8/forward/email/offer';
	var google = 'http://api.addthis.com/oexchange/0.8/forward/google/offer';
	var addthis = 'http://api.addthis.com/oexchange/0.8/offer';
	var base_url = share_base_url; // Set in common/.html_header
	
	$('#galleriffic_wrapper .share_image a.facebook').attr('href', facebook + '?url=' + base_url + photo_id);
	$('#galleriffic_wrapper .share_image a.twitter').attr('href', twitter + '?url=' + base_url + photo_id);
	$('#galleriffic_wrapper .share_image a.email').attr('href', email + '?url=' + base_url + photo_id);
	$('#galleriffic_wrapper .share_image a.google').attr('href', google + '?url=' + base_url + photo_id);
	$('#galleriffic_wrapper .share_image a.addthis').attr('href', addthis + '?url=' + base_url + photo_id);

}