jQuery(document).ready(function($) {
	
	$("img.a").hover(function(){
		$(this).stop().animate({"opacity": "0"}, "200");
	},function(){
		$(this).stop().animate({"opacity": "1"}, "200");
	});
	
	// 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
	var gallery = $('#thumbs').galleriffic({
		delay:                     2500,
		numThumbs:                 10,
		preloadAhead:              10,
		enableTopPager:            false,
		enableBottomPager:         true,
		thumbScrollSpeed:          800,
		imageContainerSel:         '#slideshow',
		controlsContainerSel:      '#controls',
		captionContainerSel:       '#caption',
		loadingContainerSel:       '#loading',
		renderSSControls:          false,
		renderNavControls:         true,
		playLinkText:              'Play Slideshow',
		pauseLinkText:             'Pause Slideshow',
		prevLinkText:              '',
		nextLinkText:              '',
		nextPageLinkText:          '',
		prevPageLinkText:          '', 
		enableHistory:             true,
		autoStart:                 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('div.photo-index')
				.html('Photo '+ (nextIndex+1) +' of '+ this.data.length);
		},
		onPageTransitionOut:       function(callback) {
			this.fadeTo('slow', 0.5, callback);
		},
		onPageTransitionIn:        function() {
			var prevPageLink = this.find('a.prev').css({'background': 'url(images/arrow_left_off.png)'});
			var nextPageLink = this.find('a.next').css({'background': 'url(images/arrow_right_off.png)'});
			
			// Show appropriate next / prev page links
			if (this.displayedPage > 0){
				prevPageLink.css('background', 'url(images/arrow-prev.png)');
			}else{
				//prevPageLink.click(function(e){e.preventDefault();});
			}

			var lastPage = this.getNumPages() - 1;
			if (this.displayedPage < lastPage){
				nextPageLink.css('background', 'url(images/arrow-next.png)');
			}else{
				//nextPageLink.click(function(e){e.preventDefault();});
			}

			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();
	});
	
	/**************** Event handlers for custom next / prev image links **********************/

	$(".slideshow-container a.prev").click(function(e) {
		if(gallery.currentImage.index != 0)
			gallery.previous();
		e.preventDefault();
	});

	$(".slideshow-container a.next").click(function(e) {
		if(gallery.currentImage.index != (gallery.data.length-1))
			gallery.next();	
		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;
	});

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