// 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').hover(
    function()
    {
        $(this).animate({ opacity: 1 }, 300);
    },
    function()
    {
        if(! $(this).hasClass('selected')) $(this).animate({ opacity: onMouseOutOpacity }, 300);
    }
);

// Initialize Advanced Galleriffic Gallery
var gallery = $('#thumbs').galleriffic({
    delay:                     2500,
    numThumbs:                 7,
    preloadAhead:              7,
    enableTopPager:            false,
    enableBottomPager:         false,
    imageContainerSel:         '#slideshow',
    controlsContainerSel:      '#controls',
    captionContainerSel:       '#caption',
    loadingContainerSel:       '#loading',
    renderSSControls:          true,
    renderNavControls:         true,
    playLinkText:              'Slideshow afspelen',
    pauseLinkText:             'Slideshow pauzeren',
    prevLinkText:              '‹ Vorige foto',
    nextLinkText:              'Volgende foto ›',
    nextPageLinkText:          'Volgende ›',
    prevPageLinkText:          '‹ Vorige',
    enableHistory:             true,
    autoStart:                 false,
    syncTransitions:           true,
    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('Foto '+ (nextIndex+1) +' van de '+ this.data.length);
    },
    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']").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;
});