/*
    This file is part of JonDesign's SmoothGallery v2.1beta1.

    JonDesign's SmoothGallery is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 3 of the License, or
    (at your option) any later version.

    JonDesign's SmoothGallery is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with JonDesign's SmoothGallery; if not, write to the Free Software
    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

    Main Developer: Jonathan Schemoul (JonDesign: http://www.jondesign.net/)
    Contributed code by:
    - Christian Ehret (bugfix)
	- Nitrix (bugfix)
	- Valerio from Mad4Milk for his great help with the carousel scrolling and many other things.
	- Archie Cowan for helping me find a bugfix on carousel inner width problem.
	- Tomocchino from #mootools for the preloader class
	Many thanks to:
	- The mootools team for the great mootools lib, and it's help and support throughout the project.
	- Harald Kirschner (digitarald: http://digitarald.de/) for all his great libs. Some used here as plugins.
*/

/* some quirks to circumvent broken stuff in mt1.2 */
function isBody(element){
	return (/^(?:body|html)$/i).test(element.tagName);
};
Element.implement({
	getPosition: function(relative){
		if (isBody(this)) return {x: 0, y: 0};
		var el = this, position = {x: 0, y: 0};
		while (el){
			position.x += el.offsetLeft;
			position.y += el.offsetTop;
			el = el.offsetParent;
		}
		var rpos = (relative) ? $(relative).getPosition() : {x: 0, y: 0};
		return {x: position.x - rpos.x, y: position.y - rpos.y};
	}
});

// declaring the class
var gallery = {
    Implements: [Events, Options],
    options: {
        showArrows: true,
        showCarousel: true,
        showInfopane: true,
        embedLinks: true,
        fadeDuration: 500,
        timed: false,
        delay: 9000,
        preloader: true,
        preloaderImage: true,
        preloaderErrorImage: true,
        /* Data retrieval */
        manualData: [],
        populateFrom: false,
        populateData: true,
        destroyAfterPopulate: true,
        elementSelector: "div.imageElement",
        titleSelector: "h3",
        subtitleSelector: "p",
        linkSelector: "a.open",
        imageSelector: "img.full",
        thumbnailSelector: "img.thumbnail",
        defaultTransition: "fade",
        /* InfoPane options */
        slideInfoZoneOpacity: 0.7,
        slideInfoZoneSlide: true,
        /* Carousel options */
        carouselMinimizedOpacity: 0.4,
        carouselMinimizedHeight: 20,
        carouselMaximizedOpacity: 0.9,
        thumbHeight: 75,
        thumbWidth: 100,
        thumbSpacing: 10,
        thumbIdleOpacity: 0.2,
        textShowCarousel: 'Pictures',
        showCarouselLabel: true,
        thumbCloseCarousel: true,
        useThumbGenerator: false,
        thumbGenerator: 'resizer.php',
        useExternalCarousel: false,
        carouselElement: false,
        carouselHorizontal: true,
        activateCarouselScroller: true,
        carouselPreloader: true,
        textPreloadingCarousel: 'Loading...',
        /* CSS Classes */
        baseClass: 'jdGallery',
        withArrowsClass: 'withArrows',
        /* Plugins: HistoryManager */
        useHistoryManager: false,
        customHistoryKey: false,
        /* Plugins: ReMooz */
        useReMooz: false
    },
    initialize: function (element, options) {
        this.setOptions(options);
        this.fireEvent('onInit');
        this.currentIter = 0;
        this.lastIter = 0;
        this.maxIter = 0;
        this.galleryElement = element;
        this.galleryData = this.options.manualData;
        this.galleryInit = 1;
        this.galleryElements = Array();
        this.thumbnailElements = Array();
        this.galleryElement.addClass(this.options.baseClass);

        if (this.options.useReMooz && (this.options.defaultTransition == "fade"))
            this.options.defaultTransition = "crossfade";

        this.populateFrom = element;
        if (this.options.populateFrom)
            this.populateFrom = this.options.populateFrom;
        if (this.options.populateData)
            this.populateData();
        element.style.display = "block";

        if (this.options.useHistoryManager)
            this.initHistory();

        if ((this.options.embedLinks) | (this.options.useReMooz)) {
            this.currentLink = new Element('a').addClass('open').setProperties({
                href: '#',
                title: ''
            }).injectInside(element);
            if ((!this.options.showArrows) && (!this.options.showCarousel))
                this.galleryElement = element = this.currentLink;
            else
                this.currentLink.setStyle('display', 'none');
        }

        this.constructElements();
        if ((this.galleryData.length > 1) && (this.options.showArrows)) {
            var leftArrow = new Element('a').addClass('left').addEvent(
				'click',
				this.prevItem.bind(this)
			).injectInside(element);
            var rightArrow = new Element('a').addClass('right').addEvent(
				'click',
				this.nextItem.bind(this)
			).injectInside(element);
            this.galleryElement.addClass(this.options.withArrowsClass);
        }
        this.loadingElement = new Element('div').addClass('loadingElement').injectInside(element);
        if (this.options.showInfopane) this.initInfoSlideshow();
        if (this.options.showCarousel) this.initCarousel();
        this.doSlideShow(1);
    },
    populateData: function () {
        currentArrayPlace = this.galleryData.length;
        options = this.options;
        var data = $A(this.galleryData);
        data.extend(this.populateGallery(this.populateFrom, currentArrayPlace));
        this.galleryData = data;
        this.fireEvent('onPopulated');
    },
    populateGallery: function (element, startNumber) {
        var data = [];
        options = this.options;
        currentArrayPlace = startNumber;
        element.getElements(options.elementSelector).each(function (el) {
            elementDict = $H({
                image: el.getElement(options.imageSelector).getProperty('src'),
                number: currentArrayPlace,
                transition: this.options.defaultTransition
            });
            if ((options.showInfopane) | (options.showCarousel))
                elementDict.extend({
                    title: el.getElement(options.titleSelector).innerHTML,
                    description: el.getElement(options.subtitleSelector).innerHTML
                });
            if ((options.embedLinks) | (options.useReMooz))
                elementDict.extend({
                    link: el.getElement(options.linkSelector).href || false,
                    linkTitle: el.getElement(options.linkSelector).title || false,
                    linkTarget: el.getElement(options.linkSelector).getProperty('target') || false
                });
            if ((!options.useThumbGenerator) && (options.showCarousel))
                elementDict.extend({
                    thumbnail: el.getElement(options.thumbnailSelector).getProperty('src')
                });
            else if (options.useThumbGenerator)
                elementDict.extend({
                    thumbnail: options.thumbGenerator + '?imgfile=' + elementDict.image + '&max_width=' + options.thumbWidth + '&max_height=' + options.thumbHeight
                });

            data.extend([elementDict]);
            currentArrayPlace++;
            if (this.options.destroyAfterPopulate)
                el.dispose();
        });
        return data;
    },
    constructElements: function () {
        el = this.galleryElement;
        if (this.options.embedLinks && (!this.options.showArrows))
            el = this.currentLink;
        this.maxIter = this.galleryData.length;
        var currentImg;
        for (i = 0; i < this.galleryData.length; i++) {
            var currentImg = new Fx.Morph(
				new Element('div').addClass('slideElement').setStyles({
				    'position': 'absolute',
				    'left': '0px',
				    'right': '0px',
				    'margin': '0px',
				    'padding': '0px',
				    'backgroundPosition': "center center",
				    'opacity': '0'
				}).injectInside(el),
				{ duration: this.options.fadeDuration }
			);
            if (this.options.preloader) {
                currentImg.source = this.galleryData[i].image;
                currentImg.loaded = false;
                currentImg.load = function (imageStyle, i) {
                    if (!imageStyle.loaded) {
                        this.galleryData[i].imgloader = new Asset.image(imageStyle.source, {
                            'onload': function (img, i) {
                                img.element.setStyle(
													'backgroundImage',
													"url('" + img.source + "')")
                                img.loaded = true;
                                img.width = this.galleryData[i].imgloader.width;
                                img.height = this.galleryData[i].imgloader.height;
                            } .pass([imageStyle, i], this)
                        });
                    }
                } .pass([currentImg, i], this);
            } else {
                currentImg.element.setStyle('backgroundImage',
									"url('" + this.galleryData[i].image + "')");
            }
            this.galleryElements[parseInt(i)] = currentImg;
        }
    },
    destroySlideShow: function (element) {
        var myClassName = element.className;
        var newElement = new Element('div').addClass('myClassName');
        element.parentNode.replaceChild(newElement, element);
    },
    startSlideShow: function () {
        this.fireEvent('onStart');
        this.loadingElement.style.display = "none";
        this.lastIter = this.maxIter - 1;
        this.currentIter = 0;
        this.galleryInit = 0;
        this.galleryElements[parseInt(this.currentIter)].set({ opacity: 1 });
        if (this.options.showInfopane)
            this.showInfoSlideShow.delay(1000, this);
        if (this.options.useReMooz)
            this.makeReMooz.delay(1000, this);
        var textShowCarousel = formatString(this.options.textShowCarousel, this.currentIter + 1, this.maxIter);
        if (this.options.showCarousel && (!this.options.carouselPreloader) && (!this.options.useExternalCarousel))
            this.carouselBtn.set('html', textShowCarousel).setProperty('title', textShowCarousel);
        this.prepareTimer();
        if (this.options.embedLinks)
            this.makeLink(this.currentIter);
        if (this.options.showCarousel)
            this.changeThumbnailImage(0);
    },
    nextItem: function () {
        this.fireEvent('onNextCalled');
        this.nextIter = this.currentIter + 1;
        if (this.nextIter >= this.maxIter)
            this.nextIter = 0;
        this.galleryInit = 0;
        this.goTo(this.nextIter);
    },
    prevItem: function () {
        this.fireEvent('onPreviousCalled');
        this.nextIter = this.currentIter - 1;
        if (this.nextIter <= -1)
            this.nextIter = this.maxIter - 1;
        this.galleryInit = 0;
        this.goTo(this.nextIter);
    },
    goTo: function (num) {
        this.clearTimer();
        if (this.options.preloader) {
            this.galleryElements[num].load();

            if (num == 0)
                this.galleryElements[this.maxIter - 1].load();
            else
                this.galleryElements[num - 1].load();
            if (num == (this.maxIter - 1))
                this.galleryElements[0].load();
            else
                this.galleryElements[num + 1].load();

        }

        if (this.options.embedLinks)
            this.clearLink();
        if (this.options.showInfopane) {
            this.slideInfoZone.clearChain();
            this.hideInfoSlideShow().chain(this.changeItem.pass(num, this));
        } else
            this.currentChangeDelay = this.changeItem.delay(500, this, num);
        if (this.options.embedLinks)
            this.makeLink(num);
        this.prepareTimer();

        if (this.options.showCarousel)
            this.changeThumbnailImage(num);
    },
    changeItem: function (num) {
        this.fireEvent('onStartChanging');
        this.galleryInit = 0;
        if (this.currentIter != num) {
            for (i = 0; i < this.maxIter; i++) {
                if ((i != this.currentIter)) this.galleryElements[i].set({ opacity: 0 });
            }
            gallery.Transitions[this.galleryData[num].transition].pass([
				this.galleryElements[this.currentIter],
				this.galleryElements[num],
				this.currentIter,
				num], this)();
            this.currentIter = num;
            if (this.options.useReMooz)
                this.makeReMooz();

        }
        var textShowCarousel = formatString(this.options.textShowCarousel, num + 1, this.maxIter);
        if ((this.options.showCarousel) && (!this.options.useExternalCarousel))
            this.carouselBtn.set('html', textShowCarousel).setProperty('title', textShowCarousel);
        this.doSlideShow.bind(this)();
        this.fireEvent('onChanged');
    },
    clearTimer: function () {
        if (this.options.timed)
            $clear(this.timer);
    },
    prepareTimer: function () {
        if (this.options.timed)
            this.timer = this.nextItem.delay(this.options.delay, this);
    },
    doSlideShow: function (position) {
        if (this.galleryInit == 1) {
            if (this.galleryData.length > 0) {
                imgPreloader = new Image();
                imgPreloader.onload = function () {
                    this.startSlideShow.delay(10, this);
                } .bind(this);
                imgPreloader.src = this.galleryData[0].image;
                if (this.options.preloader)
                    this.galleryElements[0].load();
            }
        } else {
            if (this.options.showInfopane) {
                if (this.options.showInfopane) {
                    this.showInfoSlideShow.delay((500 + this.options.fadeDuration), this);
                } else
                    if ((this.options.showCarousel) && (this.options.activateCarouselScroller))
                        this.centerCarouselOn(position);
            }
        }

    },
    createCarousel: function () {
        var carouselElement;
        if (!this.options.useExternalCarousel) {
            var carouselContainerElement = new Element('div').addClass('carouselContainer').injectInside(this.galleryElement);
            this.carouselContainer = new Fx.Morph(carouselContainerElement, { transition: Fx.Transitions.Expo.easeOut });
            this.carouselContainer.normalHeight = carouselContainerElement.offsetHeight;
            this.carouselContainer.set({ 'opacity': this.options.carouselMinimizedOpacity, 'top': (this.options.carouselMinimizedHeight - this.carouselContainer.normalHeight) });
            this.carouselBtn = new Element('a').addClass('carouselBtn').setProperties({
                title: this.options.textShowCarousel
            }).injectInside(carouselContainerElement);
            if (this.options.carouselPreloader)
                this.carouselBtn.set('html', this.options.textPreloadingCarousel);
            else
                this.carouselBtn.set('html', this.options.textShowCarousel);
            this.carouselBtn.addEvent(
				'click',
				function () {
				    this.carouselContainer.cancel();
				    this.toggleCarousel();
				} .bind(this)
			);
            this.carouselActive = false;

            carouselElement = new Element('div').addClass('carousel').injectInside(carouselContainerElement);
            this.carousel = new Fx.Morph(carouselElement);
        } else {
            carouselElement = $(this.options.carouselElement).addClass('jdExtCarousel');
        }
        this.carouselElement = new Fx.Morph(carouselElement, { transition: Fx.Transitions.Expo.easeOut });
        this.carouselElement.normalHeight = carouselElement.offsetHeight;
        if (this.options.showCarouselLabel)
            this.carouselLabel = new Element('p').addClass('label').injectInside(carouselElement);
        carouselWrapper = new Element('div').addClass('carouselWrapper').injectInside(carouselElement);
        this.carouselWrapper = new Fx.Morph(carouselWrapper, { transition: Fx.Transitions.Expo.easeOut });
        this.carouselWrapper.normalHeight = carouselWrapper.offsetHeight;
        this.carouselInner = new Element('div').addClass('carouselInner').injectInside(carouselWrapper);
        if (this.options.activateCarouselScroller) {
            this.carouselWrapper.scroller = new Scroller(carouselWrapper, {
                area: 100,
                velocity: 0.2
            })

            this.carouselWrapper.elementScroller = new Fx.Scroll(carouselWrapper, {
                duration: 400,
                onStart: this.carouselWrapper.scroller.stop.bind(this.carouselWrapper.scroller),
                onComplete: this.carouselWrapper.scroller.start.bind(this.carouselWrapper.scroller)
            });
        }
    },
    fillCarousel: function () {
        this.constructThumbnails();
        this.carouselInner.normalWidth = ((this.maxIter * (this.options.thumbWidth + this.options.thumbSpacing + 2)) + this.options.thumbSpacing) + "px";
        if (this.options.carouselHorizontal)
            this.carouselInner.style.width = this.carouselInner.normalWidth;
    },
    initCarousel: function () {
        this.createCarousel();
        this.fillCarousel();
        if (this.options.carouselPreloader)
            this.preloadThumbnails();
    },
    flushCarousel: function () {
        this.thumbnailElements.each(function (myFx) {
            myFx.element.dispose();
            myFx = myFx.element = null;
        });
        this.thumbnailElements = [];
    },
    toggleCarousel: function () {
        if (this.carouselActive)
            this.hideCarousel();
        else
            this.showCarousel();
    },
    showCarousel: function () {
        this.fireEvent('onShowCarousel');
        this.carouselContainer.start({
            'opacity': this.options.carouselMaximizedOpacity,
            'top': 0
        }).chain(function () {
            this.carouselActive = true;
            this.carouselWrapper.scroller.start();
            this.fireEvent('onCarouselShown');
            this.carouselContainer.options.onComplete = null;
        } .bind(this));
    },
    hideCarousel: function () {
        this.fireEvent('onHideCarousel');
        var targetTop = this.options.carouselMinimizedHeight - this.carouselContainer.normalHeight;
        this.carouselContainer.start({
            'opacity': this.options.carouselMinimizedOpacity,
            'top': targetTop
        }).chain(function () {
            this.carouselActive = false;
            this.carouselWrapper.scroller.stop();
            this.fireEvent('onCarouselHidden');
            this.carouselContainer.options.onComplete = null;
        } .bind(this));
    },
    constructThumbnails: function () {
        element = this.carouselInner;
        for (i = 0; i < this.galleryData.length; i++) {
            var currentImg = new Fx.Morph(new Element('div').addClass("thumbnail").setStyles({
                backgroundImage: "url('" + this.galleryData[i].thumbnail + "')",
                backgroundPosition: "center center",
                backgroundRepeat: 'no-repeat',
                marginLeft: this.options.thumbSpacing + "px",
                width: this.options.thumbWidth + "px",
                height: this.options.thumbHeight + "px"
            }).injectInside(element), { duration: 200 }).start({
                'opacity': this.options.thumbIdleOpacity
            });
            currentImg.element.addEvents({
                'mouseover': function (myself) {
                    myself.cancel();
                    myself.start({ 'opacity': 0.99 });
                    if (this.options.showCarouselLabel)
                        $(this.carouselLabel).set('html', '<span class="number">' + (myself.relatedImage.number + 1) + "/" + this.maxIter + ":</span> " + myself.relatedImage.title);
                } .pass(currentImg, this),
                'mouseout': function (myself) {
                    myself.cancel();
                    myself.start({ 'opacity': this.options.thumbIdleOpacity });
                } .pass(currentImg, this),
                'click': function (myself) {
                    this.goTo(myself.relatedImage.number);
                    if (this.options.thumbCloseCarousel && (!this.options.useExternalCarousel))
                        this.hideCarousel();
                } .pass(currentImg, this)
            });

            currentImg.relatedImage = this.galleryData[i];
            this.thumbnailElements[parseInt(i)] = currentImg;
        }
    },
    log: function (value) {
        if (console.log)
            console.log(value);
    },
    preloadThumbnails: function () {
        var thumbnails = [];
        for (i = 0; i < this.galleryData.length; i++) {
            thumbnails[parseInt(i)] = this.galleryData[i].thumbnail;
        }
        this.thumbnailPreloader = new Preloader();
        if (!this.options.useExternalCarousel)
            this.thumbnailPreloader.addEvent('onComplete', function () {
                var textShowCarousel = formatString(this.options.textShowCarousel, this.currentIter + 1, this.maxIter);
                this.carouselBtn.set('html', textShowCarousel).setProperty('title', textShowCarousel);
            } .bind(this));
        this.thumbnailPreloader.load(thumbnails);
    },
    clearThumbnailsHighlights: function () {
        for (i = 0; i < this.galleryData.length; i++) {
            this.thumbnailElements[i].cancel();
            this.thumbnailElements[i].start(0.2);
        }
    },
    changeThumbnailsSize: function (width, height) {
        for (i = 0; i < this.galleryData.length; i++) {
            this.thumbnailElements[i].cancel();
            this.thumbnailElements[i].element.setStyles({
                'width': width + "px",
                'height': height + "px"
            });
        }
    },
    changeThumbnailImage: function (position) {
        for (i = 0; i < this.galleryData.length; i++) {
            this.thumbnailElements[i].cancel();
            this.thumbnailElements[i].element.setStyles({
                'backgroundImage': "url('" + this.galleryData[i].thumbnail + "')"
            });
        }
        var urlImage = this.galleryData[position].thumbnail;
        this.thumbnailElements[position].cancel();

        this.thumbnailElements[position].element.setStyles({
            'backgroundImage': "url('" + urlImage.replace('.png', '') + "_seleccionado.png')"
        });

    },
    centerCarouselOn: function (num) {
        if (!this.carouselWallMode) {
            var carouselElement = this.thumbnailElements[num];
            var position = carouselElement.element.offsetLeft + (carouselElement.element.offsetWidth / 2);
            var carouselWidth = this.carouselWrapper.element.offsetWidth;
            var carouselInnerWidth = this.carouselInner.offsetWidth;
            var diffWidth = carouselWidth / 2;
            var scrollPos = position - diffWidth;
            this.carouselWrapper.elementScroller.start(scrollPos, 0);
        }
    },
    initInfoSlideshow: function () {
        /*if (this.slideInfoZone.element)
        this.slideInfoZone.element.remove();*/
        this.slideInfoZone = new Fx.Morph(new Element('div').addClass('slideInfoZone').injectInside($(this.galleryElement))).set({ 'opacity': 0 });
        var slideInfoZoneTitle = new Element('h2').injectInside(this.slideInfoZone.element);
        var slideInfoZoneDescription = new Element('p').injectInside(this.slideInfoZone.element);
        this.slideInfoZone.normalHeight = this.slideInfoZone.element.offsetHeight;
        this.slideInfoZone.element.setStyle('opacity', 0);
    },
    changeInfoSlideShow: function () {
        this.hideInfoSlideShow.delay(10, this);
        this.showInfoSlideShow.delay(500, this);
    },
    showInfoSlideShow: function () {
        this.fireEvent('onShowInfopane');
        this.slideInfoZone.cancel();
        element = this.slideInfoZone.element;
        element.getElement('h2').set('html', this.galleryData[this.currentIter].title);
        element.getElement('p').set('html', this.galleryData[this.currentIter].description);
        if (this.options.slideInfoZoneSlide)
            this.slideInfoZone.start({ 'opacity': [0, this.options.slideInfoZoneOpacity], 'height': [0, this.slideInfoZone.normalHeight] });
        else
            this.slideInfoZone.start({ 'opacity': [0, this.options.slideInfoZoneOpacity] });
        if (this.options.showCarousel)
            this.slideInfoZone.chain(this.centerCarouselOn.pass(this.currentIter, this));
        return this.slideInfoZone;
    },
    hideInfoSlideShow: function () {
        this.fireEvent('onHideInfopane');
        this.slideInfoZone.cancel();
        if (this.options.slideInfoZoneSlide)
            this.slideInfoZone.start({ 'opacity': 0, 'height': 0 });
        else
            this.slideInfoZone.start({ 'opacity': 0 });
        return this.slideInfoZone;
    },
    makeLink: function (num) {
        this.currentLink.setProperties({
            href: this.galleryData[num].link,
            title: this.galleryData[num].linkTitle
        })
        if (!((this.options.embedLinks) && (!this.options.showArrows) && (!this.options.showCarousel)))
            this.currentLink.setStyle('display', 'block');
    },
    clearLink: function () {
        this.currentLink.setProperties({ href: '', title: '' });
        if (!((this.options.embedLinks) && (!this.options.showArrows) && (!this.options.showCarousel)))
            this.currentLink.setStyle('display', 'none');
    },
    makeReMooz: function () {
        this.currentLink.setProperties({
            href: '#'
        });
        this.currentLink.setStyles({
            'display': 'block'
        });

        this.galleryElements[this.currentIter].element.set('title', this.galleryData[this.currentIter].title + ' :: ' + this.galleryData[this.currentIter].description);
        this.ReMooz = new ReMooz(this.galleryElements[this.currentIter].element, {
            link: this.galleryData[this.currentIter].link,
            shadow: false,
            dragging: false,
            addClick: false,
            resizeOpacity: 1
        });
        var img = this.galleryElements[this.currentIter];
        var coords = img.element.getCoordinates();
        delete coords.right;
        delete coords.bottom;

        widthDiff = coords.width - img.width;
        heightDiff = coords.height - img.height;

        coords.width = img.width;
        coords.height = img.height;

        coords.left += Math.ceil(widthDiff / 2) + 1;
        coords.top += Math.ceil(heightDiff / 2) + 1;

        this.ReMooz.getOriginCoordinates = function (coords) {
            return coords;
        } .bind(this, coords);
        this.currentLink.onclick = function () {
            this.ReMooz.open.bind(this.ReMooz)();
            return false;
        } .bind(this);
    },
    /* To change the gallery data, those two functions : */
    flushGallery: function () {
        this.galleryElements.each(function (myFx) {
            myFx.element.dispose();
            myFx = myFx.element = null;
        });
        this.galleryElements = [];
    },
    changeData: function (data) {
        this.galleryData = data;
        this.clearTimer();
        this.flushGallery();
        if (this.options.showCarousel) this.flushCarousel();
        this.constructElements();
        if (this.options.showCarousel) this.fillCarousel();
        if (this.options.showInfopane) this.hideInfoSlideShow();
        this.galleryInit = 1;
        this.lastIter = 0;
        this.currentIter = 0;
        this.doSlideShow(1);
    },
    /* Plugins: HistoryManager */
    initHistory: function () {
        this.fireEvent('onHistoryInit');
        this.historyKey = this.galleryElement.id + '-picture';
        if (this.options.customHistoryKey)
            this.historyKey = this.options.customHistoryKey;

        this.history = new History.Route({
            defaults: [1],
            pattern: this.historyKey + '\\((\\d+)\\)',
            generate: function (values) {
                return [this.historyKey, '(', values[0], ')'].join('')
            } .bind(this),
            onMatch: function (values, defaults) {
                if (parseInt(values[0]) - 1 < this.maxIter)
                    this.goTo(parseInt(values[0]) - 1);
            } .bind(this)
        });
        this.addEvent('onChanged', function () {
            this.history.setValue(0, this.currentIter + 1);
            this.history.defaults = [this.currentIter + 1];
        } .bind(this));
        this.fireEvent('onHistoryInited');
    }
};
gallery = new Class(gallery);

gallery.Transitions = new Hash ({
	fade: function(oldFx, newFx, oldPos, newPos){
		oldFx.options.transition = newFx.options.transition = Fx.Transitions.linear;
		oldFx.options.duration = newFx.options.duration = this.options.fadeDuration;
		if (newPos > oldPos) newFx.start({opacity: 1});
		else
		{
			newFx.set({opacity: 1});
			oldFx.start({opacity: 0});
		}
	},
	crossfade: function(oldFx, newFx, oldPos, newPos){
		oldFx.options.transition = newFx.options.transition = Fx.Transitions.linear;
		oldFx.options.duration = newFx.options.duration = this.options.fadeDuration;
		newFx.start({opacity: 1});
		oldFx.start({opacity: 0});
	},
	fadebg: function(oldFx, newFx, oldPos, newPos){
		oldFx.options.transition = newFx.options.transition = Fx.Transitions.linear;
		oldFx.options.duration = newFx.options.duration = this.options.fadeDuration / 2;
		oldFx.start({opacity: 0}).chain(newFx.start.pass([{opacity: 1}], newFx));
	}
});

/* All code copyright 2007 Jonathan Schemoul */

/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 * Follows: Preloader (class)
 * Simple class for preloading images with support for progress reporting
 * Copyright 2007 Tomocchino.
 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */

var Preloader = new Class({
  
  Implements: [Events, Options],

  options: {
    root        : '',
    period      : 100
  },
  
  initialize: function(options){
    this.setOptions(options);
  },
  
  load: function(sources) {
    this.index = 0;
    this.images = [];
    this.sources = this.temps = sources;
    this.total = this. sources.length;
    
    this.fireEvent('onStart', [this.index, this.total]);
    this.timer = this.progress.periodical(this.options.period, this);
    
    this.sources.each(function(source, index){
      this.images[index] = new Asset.image(this.options.root + source, {
        'onload'  : function(){ this.index++; if(this.images[index]) this.fireEvent('onLoad', [this.images[index], index, source]); }.bind(this),
        'onerror' : function(){ this.index++; this.fireEvent('onError', [this.images.splice(index, 1), index, source]); }.bind(this),
        'onabort' : function(){ this.index++; this.fireEvent('onError', [this.images.splice(index, 1), index, source]); }.bind(this)
      });
    }, this);
  },
  
  progress: function() {
    this.fireEvent('onProgress', [Math.min(this.index, this.total), this.total]);
    if(this.index >= this.total) this.complete();
  },
  
  complete: function(){
    $clear(this.timer);
    this.fireEvent('onComplete', [this.images]);
  },
  
  cancel: function(){
    $clear(this.timer);
  }
  
});

/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 * Follows: formatString (function)
 * Original name: Yahoo.Tools.printf
 * Copyright Yahoo.
 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */

function formatString() {
	var num = arguments.length;
	var oStr = arguments[0];
	for (var i = 1; i < num; i++) {
		var pattern = "\\{" + (i-1) + "\\}"; 
		var re = new RegExp(pattern, "g");
		oStr = oStr.replace(re, arguments[i]);
	}
	return oStr; 
}