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Filename : owl.carousel.js
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/**
 * Owl2 carousel2
 * @version 2.0.0
 * @author Bartosz Wojciechowski
 * @license The MIT License (MIT)
 * @todo Lazy Load Icon
 * @todo prevent animationend bubling
 * @todo itemsScaleUp
 * @todo Test Zepto
 * @todo stagePadding calculate wrong active classes
 */
;(function($, window, document, undefined) {

    var drag, state, e;

    /**
     * Template for status information about drag and touch events.
     * @private
     */
    drag = {
        start: 0,
        startX: 0,
        startY: 0,
        current: 0,
        currentX: 0,
        currentY: 0,
        offsetX: 0,
        offsetY: 0,
        distance: null,
        startTime: 0,
        endTime: 0,
        updatedX: 0,
        targetEl: null
    };

    /**
     * Template for some status informations.
     * @private
     */
    state = {
        isTouch: false,
        isScrolling: false,
        isSwiping: false,
        direction: false,
        inMotion: false
    };

    /**
     * Event functions references.
     * @private
     */
    e = {
        _onDragStart: null,
        _onDragMove: null,
        _onDragEnd: null,
        _transitionEnd: null,
        _resizer: null,
        _responsiveCall: null,
        _goToLoop: null,
        _checkVisibile: null
    };

    /**
     * Creates a carousel2.
     * @class The Owl2 Carousel.
     * @public
     * @param {HTMLElement|jQuery} element - The element to create the carousel2 for.
     * @param {Object} [options] - The options
     */
    function Owl2(element, options) {

        /**
         * Current settings for the carousel2.
         * @public
         */
        this.settings = null;

        /**
         * Current options set by the caller including defaults.
         * @public
         */
        this.options = $.extend({}, Owl2.Defaults, options);

        /**
         * Plugin element.
         * @public
         */
        this.$element = $(element);

        /**
         * Caches informations about drag and touch events.
         */
        this.drag = $.extend({}, drag);

        /**
         * Caches some status informations.
         * @protected
         */
        this.state = $.extend({}, state);

        /**
         * @protected
         * @todo Must be documented
         */
        this.e = $.extend({}, e);

        /**
         * References to the running plugins of this carousel2.
         * @protected
         */
        this._plugins = {};

        /**
         * Currently suppressed events to prevent them from beeing retriggered.
         * @protected
         */
        this._supress = {};

        /**
         * Absolute current position.
         * @protected
         */
        this._current = null;

        /**
         * Animation speed in milliseconds.
         * @protected
         */
        this._speed = null;

        /**
         * Coordinates of all items in pixel.
         * @todo The name of this member is missleading.
         * @protected
         */
        this._coordinates = [];

        /**
         * Current breakpoint.
         * @todo Real media queries would be nice.
         * @protected
         */
        this._breakpoint = null;

        /**
         * Current width of the plugin element.
         */
        this._width = null;

        /**
         * All real items.
         * @protected
         */
        this._items = [];

        /**
         * All cloned items.
         * @protected
         */
        this._clones = [];

        /**
         * Merge values of all items.
         * @todo Maybe this could be part of a plugin.
         * @protected
         */
        this._mergers = [];

        /**
         * Invalidated parts within the update process.
         * @protected
         */
        this._invalidated = {};

        /**
         * Ordered list of workers for the update process.
         * @protected
         */
        this._pipe = [];

        $.each(Owl2.Plugins, $.proxy(function(key, plugin) {
            this._plugins[key[0].toLowerCase() + key.slice(1)]
                = new plugin(this);
        }, this));

        $.each(Owl2.Pipe, $.proxy(function(priority, worker) {
            this._pipe.push({
                'filter': worker.filter,
                'run': $.proxy(worker.run, this)
            });
        }, this));

        this.setup();
        this.initialize();
    }

    /**
     * Default options for the carousel2.
     * @public
     */
    Owl2.Defaults = {
        items: 3,
        loop: false,
        center: false,

        mouseDrag: true,
        touchDrag: true,
        pullDrag: true,
        freeDrag: false,

        margin: 0,
        stagePadding: 0,

        merge: false,
        mergeFit: true,
        autoWidth: false,

        startPosition: 0,
        rtl: false,

        smartSpeed: 250,
        fluidSpeed: false,
        dragEndSpeed: false,

        responsive: {},
        responsiveRefreshRate: 200,
        responsiveBaseElement: window,
        responsiveClass: false,

        fallbackEasing: 'swing',

        info: false,

        nestedItemSelector: false,
        itemElement: 'div',
        stageElement: 'div',

        // Classes and Names
        themeClass: 'owl2-theme',
        baseClass: 'owl2-carousel',
        itemClass: 'owl2-item',
        centerClass: 'center',
        activeClass: 'active'
    };

    /**
     * Enumeration for width.
     * @public
     * @readonly
     * @enum {String}
     */
    Owl2.Width = {
        Default: 'default',
        Inner: 'inner',
        Outer: 'outer'
    };

    /**
     * Contains all registered plugins.
     * @public
     */
    Owl2.Plugins = {};

    /**
     * Update pipe.
     */
    Owl2.Pipe = [ {
        filter: [ 'width', 'items', 'settings' ],
        run: function(cache) {
            cache.current = this._items && this._items[this.relative(this._current)];
        }
    }, {
        filter: [ 'items', 'settings' ],
        run: function() {
            var cached = this._clones,
                clones = this.$stage.children('.cloned');

            if (clones.length !== cached.length || (!this.settings.loop && cached.length > 0)) {
                this.$stage.children('.cloned').remove();
                this._clones = [];
            }
        }
    }, {
        filter: [ 'items', 'settings' ],
        run: function() {
            var i, n,
                clones = this._clones,
                items = this._items,
                delta = this.settings.loop ? clones.length - Math.max(this.settings.items * 2, 4) : 0;
			if(items.length == 1)
			return;
            for (i = 0, n = Math.abs(delta / 2); i < n; i++) {
                if (delta > 0) {
                    this.$stage.children().eq(items.length + clones.length - 1).remove();
                    clones.pop();
                    this.$stage.children().eq(0).remove();
                    clones.pop();
                } else {
                    clones.push(clones.length / 2);
                    this.$stage.append(items[clones[clones.length - 1]].clone().addClass('cloned'));
                    clones.push(items.length - 1 - (clones.length - 1) / 2);
                    this.$stage.prepend(items[clones[clones.length - 1]].clone().addClass('cloned'));
                }
            }
        }
    }, {
        filter: [ 'width', 'items', 'settings' ],
        run: function() {
            var rtl = (this.settings.rtl ? 1 : -1),
                width = (this.width() / this.settings.items).toFixed(3),
                coordinate = 0, merge, i, n;

            this._coordinates = [];
            for (i = 0, n = this._clones.length + this._items.length; i < n; i++) {
                merge = this._mergers[this.relative(i)];
                merge = (this.settings.mergeFit && Math.min(merge, this.settings.items)) || merge;
                coordinate += (this.settings.autoWidth ? this._items[this.relative(i)].width() + this.settings.margin : width * merge) * rtl;

                this._coordinates.push(coordinate);
            }
        }
    }, {
        filter: [ 'width', 'items', 'settings' ],
        run: function() {
            var i, n, width = (this.width() / this.settings.items).toFixed(3), css = {
                'width': Math.abs(this._coordinates[this._coordinates.length - 1]) + this.settings.stagePadding * 2,
                'padding-left': this.settings.stagePadding || '',
                'padding-right': this.settings.stagePadding || ''
            };

            this.$stage.css(css);

            css = { 'width': this.settings.autoWidth ? 'auto' : width - this.settings.margin };
            css[this.settings.rtl ? 'margin-left' : 'margin-right'] = this.settings.margin;

            if (!this.settings.autoWidth && $.grep(this._mergers, function(v) { return v > 1 }).length > 0) {
                for (i = 0, n = this._coordinates.length; i < n; i++) {
                    css.width = Math.abs(this._coordinates[i]) - Math.abs(this._coordinates[i - 1] || 0) - this.settings.margin;
                    this.$stage.children().eq(i).css(css);
                }
            } else {
                this.$stage.children().css(css);
            }
        }
    }, {
        filter: [ 'width', 'items', 'settings' ],
        run: function(cache) {
            cache.current && this.reset(this.$stage.children().index(cache.current));
        }
    }, {
        filter: [ 'position' ],
        run: function() {
            this.animate(this.coordinates(this._current));
        }
    }, {
        filter: [ 'width', 'position', 'items', 'settings' ],
        run: function() {
            var rtl = this.settings.rtl ? 1 : -1,
                padding = this.settings.stagePadding * 2,
                begin = this.coordinates(this.current()) + padding,
                end = begin + this.width() * rtl,
                inner, outer, matches = [], i, n;

            for (i = 0, n = this._coordinates.length; i < n; i++) {
                inner = this._coordinates[i - 1] || 0;
                outer = Math.abs(this._coordinates[i]) + padding * rtl;

                if ((this.op(inner, '<=', begin) && (this.op(inner, '>', end)))
                    || (this.op(outer, '<', begin) && this.op(outer, '>', end))) {
                    matches.push(i);
                }
            }

            this.$stage.children('.' + this.settings.activeClass).removeClass(this.settings.activeClass);
            this.$stage.children(':eq(' + matches.join('), :eq(') + ')').addClass(this.settings.activeClass);

            if (this.settings.center) {
                this.$stage.children('.' + this.settings.centerClass).removeClass(this.settings.centerClass);
                this.$stage.children().eq(this.current()).addClass(this.settings.centerClass);
            }
        }
    } ];

    /**
     * Initializes the carousel2.
     * @protected
     */
    Owl2.prototype.initialize = function() {
        this.trigger('initialize');

        this.$element
            .addClass(this.settings.baseClass)
            .addClass(this.settings.themeClass)
            .toggleClass('owl2-rtl', this.settings.rtl);

        // check support
        this.browserSupport();

        if (this.settings.autoWidth && this.state.imagesLoaded !== true) {
            var imgs, nestedSelector, width;
            imgs = this.$element.find('img');
            nestedSelector = this.settings.nestedItemSelector ? '.' + this.settings.nestedItemSelector : undefined;
            width = this.$element.children(nestedSelector).width();

            if (imgs.length && width <= 0) {
                this.preloadAutoWidthImages(imgs);
                return false;
            }
        }

        this.$element.addClass('owl2-loading');

        // create stage
        this.$stage = $('<' + this.settings.stageElement + ' class="owl2-stage"/>')
            .wrap('<div class="owl2-stage-outer">');

        // append stage
        this.$element.append(this.$stage.parent());

        // append content
        this.replace(this.$element.children().not(this.$stage.parent()));

        // set view width
        this._width = this.$element.width();

        // update view
        this.refresh();

        this.$element.removeClass('owl2-loading').addClass('owl2-loaded');

        // attach generic events
        this.eventsCall();

        // attach generic events
        this.internalEvents();

        // attach custom control events
        this.addTriggerableEvents();

        this.trigger('initialized');
    };

    /**
     * Setups the current settings.
     * @todo Remove responsive classes. Why should adaptive designs be brought into IE8?
     * @todo Support for media queries by using `matchMedia` would be nice.
     * @public
     */
    Owl2.prototype.setup = function() {
        var viewport = this.viewport(),
            overwrites = this.options.responsive,
            match = -1,
            settings = null;

        if (!overwrites) {
            settings = $.extend({}, this.options);
        } else {
            $.each(overwrites, function(breakpoint) {
                if (breakpoint <= viewport && breakpoint > match) {
                    match = Number(breakpoint);
                }
            });

            settings = $.extend({}, this.options, overwrites[match]);
            delete settings.responsive;

            // responsive class
            if (settings.responsiveClass) {
                this.$element.attr('class', function(i, c) {
                    return c.replace(/\b owl2-responsive-\S+/g, '');
                }).addClass('owl2-responsive-' + match);
            }
        }

        if (this.settings === null || this._breakpoint !== match) {
            this.trigger('change', { property: { name: 'settings', value: settings } });
            this._breakpoint = match;
            this.settings = settings;
            this.invalidate('settings');
            this.trigger('changed', { property: { name: 'settings', value: this.settings } });
        }
    };

    /**
     * Updates option logic if necessery.
     * @protected
     */
    Owl2.prototype.optionsLogic = function() {
        // Toggle Center class
        this.$element.toggleClass('owl2-center', this.settings.center);

        // if items number is less than in body
        if (this.settings.loop && this._items.length < this.settings.items) {
            this.settings.loop = false;
        }

        if (this.settings.autoWidth) {
            this.settings.stagePadding = false;
            this.settings.merge = false;
        }
    };

    /**
     * Prepares an item before add.
     * @todo Rename event parameter `content` to `item`.
     * @protected
     * @returns {jQuery|HTMLElement} - The item container.
     */
    Owl2.prototype.prepare = function(item) {
        var event = this.trigger('prepare', { content: item });

        if (!event.data) {
            event.data = $('<' + this.settings.itemElement + '/>')
                .addClass(this.settings.itemClass).append(item)
        }

        this.trigger('prepared', { content: event.data });

        return event.data;
    };

    /**
     * Updates the view.
     * @public
     */
    Owl2.prototype.update = function() {
        var i = 0,
            n = this._pipe.length,
            filter = $.proxy(function(p) { return this[p] }, this._invalidated),
            cache = {};

        while (i < n) {
            if (this._invalidated.all || $.grep(this._pipe[i].filter, filter).length > 0) {
                this._pipe[i].run(cache);
            }
            i++;
        }

        this._invalidated = {};
    };

    /**
     * Gets the width of the view.
     * @public
     * @param {Owl2.Width} [dimension=Owl2.Width.Default] - The dimension to return.
     * @returns {Number} - The width of the view in pixel.
     */
    Owl2.prototype.width = function(dimension) {
        dimension = dimension || Owl2.Width.Default;
        switch (dimension) {
            case Owl2.Width.Inner:
            case Owl2.Width.Outer:
                return this._width;
            default:
                return this._width - this.settings.stagePadding * 2 + this.settings.margin;
        }
    };

    /**
     * Refreshes the carousel2 primarily for adaptive purposes.
     * @public
     */
    Owl2.prototype.refresh = function() {
        if (this._items.length === 0) {
            return false;
        }

        var start = new Date().getTime();

        this.trigger('refresh');

        this.setup();

        this.optionsLogic();

        // hide and show methods helps here to set a proper widths,
        // this prevents scrollbar to be calculated in stage width
        this.$stage.addClass('owl2-refresh');

        this.update();

        this.$stage.removeClass('owl2-refresh');

        this.state.orientation = window.orientation;

        this.watchVisibility();

        this.trigger('refreshed');
    };

    /**
     * Save internal event references and add event based functions.
     * @protected
     */
    Owl2.prototype.eventsCall = function() {
        // Save events references
        this.e._onDragStart = $.proxy(function(e) {
            this.onDragStart(e);
        }, this);
        this.e._onDragMove = $.proxy(function(e) {
            this.onDragMove(e);
        }, this);
        this.e._onDragEnd = $.proxy(function(e) {
            this.onDragEnd(e);
        }, this);
        this.e._onResize = $.proxy(function(e) {
            this.onResize(e);
        }, this);
        this.e._transitionEnd = $.proxy(function(e) {
            this.transitionEnd(e);
        }, this);
        this.e._preventClick = $.proxy(function(e) {
            this.preventClick(e);
        }, this);
    };

    /**
     * Checks window `resize` event.
     * @protected
     */
    Owl2.prototype.onThrottledResize = function() {
        window.clearTimeout(this.resizeTimer);
        this.resizeTimer = window.setTimeout(this.e._onResize, this.settings.responsiveRefreshRate);
    };

    /**
     * Checks window `resize` event.
     * @protected
     */
    Owl2.prototype.onResize = function() {
        if (!this._items.length) {
            return false;
        }

        if (this._width === this.$element.width()) {
            return false;
        }

        if (this.trigger('resize').isDefaultPrevented()) {
            return false;
        }

        this._width = this.$element.width();

        this.invalidate('width');

        this.refresh();

        this.trigger('resized');
    };

    /**
     * Checks for touch/mouse drag event type and add run event handlers.
     * @protected
     */
    Owl2.prototype.eventsRouter = function(event) {
        var type = event.type;

        if (type === "mousedown" || type === "touchstart") {
            this.onDragStart(event);
        } else if (type === "mousemove" || type === "touchmove") {
            this.onDragMove(event);
        } else if (type === "mouseup" || type === "touchend") {
            this.onDragEnd(event);
        } else if (type === "touchcancel") {
            this.onDragEnd(event);
        }
    };

    /**
     * Checks for touch/mouse drag options and add necessery event handlers.
     * @protected
     */
    Owl2.prototype.internalEvents = function() {
        var isTouch = isTouchSupport(),
            isTouchIE = isTouchSupportIE();

        if (this.settings.mouseDrag){
            this.$stage.on('mousedown', $.proxy(function(event) { this.eventsRouter(event) }, this));
            this.$stage.on('dragstart', function() { return false });
            this.$stage.get(0).onselectstart = function() { return false };
        } else {
            this.$element.addClass('owl2-text-select-on');
        }

        if (this.settings.touchDrag && !isTouchIE){
            this.$stage.on('touchstart touchcancel', $.proxy(function(event) { this.eventsRouter(event) }, this));
        }

        // catch transitionEnd event
        if (this.transitionEndVendor) {
            this.on(this.$stage.get(0), this.transitionEndVendor, this.e._transitionEnd, false);
        }

        // responsive
        if (this.settings.responsive !== false) {
            this.on(window, 'resize', $.proxy(this.onThrottledResize, this));
        }
    };

    /**
     * Handles touchstart/mousedown event.
     * @protected
     * @param {Event} event - The event arguments.
     */
    Owl2.prototype.onDragStart = function(event) {
        var ev, isTouchEvent, pageX, pageY, animatedPos;

        ev = event.originalEvent || event || window.event;

        // prevent right click
        if (ev.which === 3 || this.state.isTouch) {
            return false;
        }

        if (ev.type === 'mousedown') {
            this.$stage.addClass('owl2-grab');
        }

        this.trigger('drag');
        this.drag.startTime = new Date().getTime();
        this.speed(0);
        this.state.isTouch = true;
        this.state.isScrolling = false;
        this.state.isSwiping = false;
        this.drag.distance = 0;

        pageX = getTouches(ev).x;
        pageY = getTouches(ev).y;

        // get stage position left
        this.drag.offsetX = this.$stage.position().left;
        this.drag.offsetY = this.$stage.position().top;

        if (this.settings.rtl) {
            this.drag.offsetX = this.$stage.position().left + this.$stage.width() - this.width()
            + this.settings.margin;
        }

        // catch position // ie to fix
        if (this.state.inMotion && this.support3d) {
            animatedPos = this.getTransformProperty();
            this.drag.offsetX = animatedPos;
            this.animate(animatedPos);
            this.state.inMotion = true;
        } else if (this.state.inMotion && !this.support3d) {
            this.state.inMotion = false;
            return false;
        }

        this.drag.startX = pageX - this.drag.offsetX;
        this.drag.startY = pageY - this.drag.offsetY;

        this.drag.start = pageX - this.drag.startX;
        this.drag.targetEl = ev.target || ev.srcElement;
        this.drag.updatedX = this.drag.start;

        // to do/check
        // prevent links and images dragging;
        if (this.drag.targetEl.tagName === "IMG" || this.drag.targetEl.tagName === "A") {
            this.drag.targetEl.draggable = false;
        }

        $(document).on('mousemove.owl.dragEvents mouseup.owl.dragEvents touchmove.owl.dragEvents touchend.owl.dragEvents', $.proxy(function(event) {this.eventsRouter(event)},this));
    };

    /**
     * Handles the touchmove/mousemove events.
     * @todo Simplify
     * @protected
     * @param {Event} event - The event arguments.
     */
    Owl2.prototype.onDragMove = function(event) {
        var ev, isTouchEvent, pageX, pageY, minValue, maxValue, pull;

        if (!this.state.isTouch) {
            return;
        }

        if (this.state.isScrolling) {
            return;
        }

        ev = event.originalEvent || event || window.event;

        pageX = getTouches(ev).x;
        pageY = getTouches(ev).y;

        // Drag Direction
        this.drag.currentX = pageX - this.drag.startX;
        this.drag.currentY = pageY - this.drag.startY;
        this.drag.distance = this.drag.currentX - this.drag.offsetX;

        // Check move direction
        if (this.drag.distance < 0) {
            this.state.direction = this.settings.rtl ? 'right' : 'left';
        } else if (this.drag.distance > 0) {
            this.state.direction = this.settings.rtl ? 'left' : 'right';
        }
        // Loop
        if (this.settings.loop) {
            if (this.op(this.drag.currentX, '>', this.coordinates(this.minimum())) && this.state.direction === 'right') {
                this.drag.currentX -= (this.settings.center && this.coordinates(0)) - this.coordinates(this._items.length);
            } else if (this.op(this.drag.currentX, '<', this.coordinates(this.maximum())) && this.state.direction === 'left') {
                this.drag.currentX += (this.settings.center && this.coordinates(0)) - this.coordinates(this._items.length);
            }
        } else {
            // pull
            minValue = this.settings.rtl ? this.coordinates(this.maximum()) : this.coordinates(this.minimum());
            maxValue = this.settings.rtl ? this.coordinates(this.minimum()) : this.coordinates(this.maximum());
            pull = this.settings.pullDrag ? this.drag.distance / 5 : 0;
            this.drag.currentX = Math.max(Math.min(this.drag.currentX, minValue + pull), maxValue + pull);
        }

        // Lock browser if swiping horizontal

        if ((this.drag.distance > 8 || this.drag.distance < -8)) {
            if (ev.preventDefault !== undefined) {
                ev.preventDefault();
            } else {
                ev.returnValue = false;
            }
            this.state.isSwiping = true;
        }

        this.drag.updatedX = this.drag.currentX;

        // Lock Owl2 if scrolling
        if ((this.drag.currentY > 16 || this.drag.currentY < -16) && this.state.isSwiping === false) {
            this.state.isScrolling = true;
            this.drag.updatedX = this.drag.start;
        }

        this.animate(this.drag.updatedX);
    };

    /**
     * Handles the touchend/mouseup events.
     * @protected
     */
    Owl2.prototype.onDragEnd = function(event) {
        var compareTimes, distanceAbs, closest;

        if (!this.state.isTouch) {
            return;
        }

        if (event.type === 'mouseup') {
            this.$stage.removeClass('owl2-grab');
        }

        this.trigger('dragged');

        // prevent links and images dragging;
        this.drag.targetEl.removeAttribute("draggable");

        // remove drag event listeners

        this.state.isTouch = false;
        this.state.isScrolling = false;
        this.state.isSwiping = false;

        // to check
        if (this.drag.distance === 0 && this.state.inMotion !== true) {
            this.state.inMotion = false;
            return false;
        }

        // prevent clicks while scrolling

        this.drag.endTime = new Date().getTime();
        compareTimes = this.drag.endTime - this.drag.startTime;
        distanceAbs = Math.abs(this.drag.distance);

        // to test
        if (distanceAbs > 3 || compareTimes > 300) {
            this.removeClick(this.drag.targetEl);
        }

        closest = this.closest(this.drag.updatedX);

        this.speed(this.settings.dragEndSpeed || this.settings.smartSpeed);
        this.current(closest);
        this.invalidate('position');
        this.update();

        // if pullDrag is off then fire transitionEnd event manually when stick
        // to border
        if (!this.settings.pullDrag && this.drag.updatedX === this.coordinates(closest)) {
            this.transitionEnd();
        }

        this.drag.distance = 0;

        $(document).off('.owl.dragEvents');
    };

    /**
     * Attaches `preventClick` to disable link while swipping.
     * @protected
     * @param {HTMLElement} [target] - The target of the `click` event.
     */
    Owl2.prototype.removeClick = function(target) {
        this.drag.targetEl = target;
        $(target).on('click.preventClick', this.e._preventClick);
        // to make sure click is removed:
        window.setTimeout(function() {
            $(target).off('click.preventClick');
        }, 300);
    };

    /**
     * Suppresses click event.
     * @protected
     * @param {Event} ev - The event arguments.
     */
    Owl2.prototype.preventClick = function(ev) {
        if (ev.preventDefault) {
            ev.preventDefault();
        } else {
            ev.returnValue = false;
        }
        if (ev.stopPropagation) {
            ev.stopPropagation();
        }
        $(ev.target).off('click.preventClick');
    };

    /**
     * Catches stage position while animate (only CSS3).
     * @protected
     * @returns
     */
    Owl2.prototype.getTransformProperty = function() {
        var transform, matrix3d;

        transform = window.getComputedStyle(this.$stage.get(0), null).getPropertyValue(this.vendorName + 'transform');
        // var transform = this.$stage.css(this.vendorName + 'transform')
        transform = transform.replace(/matrix(3d)?\(|\)/g, '').split(',');
        matrix3d = transform.length === 16;

        return matrix3d !== true ? transform[4] : transform[12];
    };

    /**
     * Gets absolute position of the closest item for a coordinate.
     * @todo Setting `freeDrag` makes `closest` not reusable. See #165.
     * @protected
     * @param {Number} coordinate - The coordinate in pixel.
     * @return {Number} - The absolute position of the closest item.
     */
    Owl2.prototype.closest = function(coordinate) {
        var position = -1, pull = 30, width = this.width(), coordinates = this.coordinates();

        if (!this.settings.freeDrag) {
            // check closest item
            $.each(coordinates, $.proxy(function(index, value) {
                if (coordinate > value - pull && coordinate < value + pull) {
                    position = index;
                } else if (this.op(coordinate, '<', value)
                    && this.op(coordinate, '>', coordinates[index + 1] || value - width)) {
                    position = this.state.direction === 'left' ? index + 1 : index;
                }
                return position === -1;
            }, this));
        }

        if (!this.settings.loop) {
            // non loop boundries
            if (this.op(coordinate, '>', coordinates[this.minimum()])) {
                position = coordinate = this.minimum();
            } else if (this.op(coordinate, '<', coordinates[this.maximum()])) {
                position = coordinate = this.maximum();
            }
        }

        return position;
    };

    /**
     * Animates the stage.
     * @public
     * @param {Number} coordinate - The coordinate in pixels.
     */
    Owl2.prototype.animate = function(coordinate) {
        this.trigger('translate');
        this.state.inMotion = this.speed() > 0;

        if (this.support3d) {
            this.$stage.css({
                transform: 'translate3d(' + coordinate + 'px' + ',0px, 0px)',
                transition: (this.speed() / 1000) + 's'
            });
        } else if (this.state.isTouch) {
            this.$stage.css({
                left: coordinate + 'px'
            });
        } else {
            this.$stage.animate({
                left: coordinate
            }, this.speed() / 1000, this.settings.fallbackEasing, $.proxy(function() {
                if (this.state.inMotion) {
                    this.transitionEnd();
                }
            }, this));
        }
    };

    /**
     * Sets the absolute position of the current item.
     * @public
     * @param {Number} [position] - The new absolute position or nothing to leave it unchanged.
     * @returns {Number} - The absolute position of the current item.
     */
    Owl2.prototype.current = function(position) {
        if (position === undefined) {
            return this._current;
        }

        if (this._items.length === 0) {
            return undefined;
        }

        position = this.normalize(position);

        if (this._current !== position) {
            var event = this.trigger('change', { property: { name: 'position', value: position } });

            if (event.data !== undefined) {
                position = this.normalize(event.data);
            }

            this._current = position;

            this.invalidate('position');

            this.trigger('changed', { property: { name: 'position', value: this._current } });
        }

        return this._current;
    };

    /**
     * Invalidates the given part of the update routine.
     * @param {String} part - The part to invalidate.
     */
    Owl2.prototype.invalidate = function(part) {
        this._invalidated[part] = true;
    }

    /**
     * Resets the absolute position of the current item.
     * @public
     * @param {Number} position - The absolute position of the new item.
     */
    Owl2.prototype.reset = function(position) {
        position = this.normalize(position);

        if (position === undefined) {
            return;
        }

        this._speed = 0;
        this._current = position;

        this.suppress([ 'translate', 'translated' ]);

        this.animate(this.coordinates(position));

        this.release([ 'translate', 'translated' ]);
    };

    /**
     * Normalizes an absolute or a relative position for an item.
     * @public
     * @param {Number} position - The absolute or relative position to normalize.
     * @param {Boolean} [relative=false] - Whether the given position is relative or not.
     * @returns {Number} - The normalized position.
     */
    Owl2.prototype.normalize = function(position, relative) {
        var n = (relative ? this._items.length : this._items.length + this._clones.length);

        if (!$.isNumeric(position) || n < 1) {
            return undefined;
        }

        if (this._clones.length) {
            position = ((position % n) + n) % n;
        } else {
            position = Math.max(this.minimum(relative), Math.min(this.maximum(relative), position));
        }

        return position;
    };

    /**
     * Converts an absolute position for an item into a relative position.
     * @public
     * @param {Number} position - The absolute position to convert.
     * @returns {Number} - The converted position.
     */
    Owl2.prototype.relative = function(position) {
        position = this.normalize(position);
        position = position - this._clones.length / 2;
        return this.normalize(position, true);
    };

    /**
     * Gets the maximum position for an item.
     * @public
     * @param {Boolean} [relative=false] - Whether to return an absolute position or a relative position.
     * @returns {Number}
     */
    Owl2.prototype.maximum = function(relative) {
        var maximum, width, i = 0, coordinate,
            settings = this.settings;

        if (relative) {
            return this._items.length - 1;
        }

        if (!settings.loop && settings.center) {
            maximum = this._items.length - 1;
        } else if (!settings.loop && !settings.center) {
            maximum = this._items.length - settings.items;
        } else if (settings.loop || settings.center) {
            maximum = this._items.length + settings.items;
        } else if (settings.autoWidth || settings.merge) {
            revert = settings.rtl ? 1 : -1;
            width = this.$stage.width() - this.$element.width();
            while (coordinate = this.coordinates(i)) {
                if (coordinate * revert >= width) {
                    break;
                }
                maximum = ++i;
            }
        } else {
            throw 'Can not detect maximum absolute position.'
        }

        return maximum;
    };

    /**
     * Gets the minimum position for an item.
     * @public
     * @param {Boolean} [relative=false] - Whether to return an absolute position or a relative position.
     * @returns {Number}
     */
    Owl2.prototype.minimum = function(relative) {
        if (relative) {
            return 0;
        }

        return this._clones.length / 2;
    };

    /**
     * Gets an item at the specified relative position.
     * @public
     * @param {Number} [position] - The relative position of the item.
     * @return {jQuery|Array.<jQuery>} - The item at the given position or all items if no position was given.
     */
    Owl2.prototype.items = function(position) {
        if (position === undefined) {
            return this._items.slice();
        }

        position = this.normalize(position, true);
        return this._items[position];
    };

    /**
     * Gets an item at the specified relative position.
     * @public
     * @param {Number} [position] - The relative position of the item.
     * @return {jQuery|Array.<jQuery>} - The item at the given position or all items if no position was given.
     */
    Owl2.prototype.mergers = function(position) {
        if (position === undefined) {
            return this._mergers.slice();
        }

        position = this.normalize(position, true);
        return this._mergers[position];
    };

    /**
     * Gets the absolute positions of clones for an item.
     * @public
     * @param {Number} [position] - The relative position of the item.
     * @returns {Array.<Number>} - The absolute positions of clones for the item or all if no position was given.
     */
    Owl2.prototype.clones = function(position) {
        var odd = this._clones.length / 2,
            even = odd + this._items.length,
            map = function(index) { return index % 2 === 0 ? even + index / 2 : odd - (index + 1) / 2 };

        if (position === undefined) {
            return $.map(this._clones, function(v, i) { return map(i) });
        }

        return $.map(this._clones, function(v, i) { return v === position ? map(i) : null });
    };

    /**
     * Sets the current animation speed.
     * @public
     * @param {Number} [speed] - The animation speed in milliseconds or nothing to leave it unchanged.
     * @returns {Number} - The current animation speed in milliseconds.
     */
    Owl2.prototype.speed = function(speed) {
        if (speed !== undefined) {
            this._speed = speed;
        }

        return this._speed;
    };

    /**
     * Gets the coordinate of an item.
     * @todo The name of this method is missleanding.
     * @public
     * @param {Number} position - The absolute position of the item within `minimum()` and `maximum()`.
     * @returns {Number|Array.<Number>} - The coordinate of the item in pixel or all coordinates.
     */
    Owl2.prototype.coordinates = function(position) {
        var coordinate = null;

        if (position === undefined) {
            return $.map(this._coordinates, $.proxy(function(coordinate, index) {
                return this.coordinates(index);
            }, this));
        }

        if (this.settings.center) {
            coordinate = this._coordinates[position];
            coordinate += (this.width() - coordinate + (this._coordinates[position - 1] || 0)) / 2 * (this.settings.rtl ? -1 : 1);
        } else {
            coordinate = this._coordinates[position - 1] || 0;
        }

        return coordinate;
    };

    /**
     * Calculates the speed for a translation.
     * @protected
     * @param {Number} from - The absolute position of the start item.
     * @param {Number} to - The absolute position of the target item.
     * @param {Number} [factor=undefined] - The time factor in milliseconds.
     * @returns {Number} - The time in milliseconds for the translation.
     */
    Owl2.prototype.duration = function(from, to, factor) {
        return Math.min(Math.max(Math.abs(to - from), 1), 6) * Math.abs((factor || this.settings.smartSpeed));
    };

    /**
     * Slides to the specified item.
     * @public
     * @param {Number} position - The position of the item.
     * @param {Number} [speed] - The time in milliseconds for the transition.
     */
    Owl2.prototype.to = function(position, speed) {
        if (this.settings.loop) {
            var distance = position - this.relative(this.current()),
                revert = this.current(),
                before = this.current(),
                after = this.current() + distance,
                direction = before - after < 0 ? true : false,
                items = this._clones.length + this._items.length;

            if (after < this.settings.items && direction === false) {
                revert = before + this._items.length;
                this.reset(revert);
            } else if (after >= items - this.settings.items && direction === true) {
                revert = before - this._items.length;
                this.reset(revert);
            }
            window.clearTimeout(this.e._goToLoop);
            this.e._goToLoop = window.setTimeout($.proxy(function() {
                this.speed(this.duration(this.current(), revert + distance, speed));
                this.current(revert + distance);
                this.update();
            }, this), 30);
        } else {
            this.speed(this.duration(this.current(), position, speed));
            this.current(position);
            this.update();
        }
    };

    /**
     * Slides to the next item.
     * @public
     * @param {Number} [speed] - The time in milliseconds for the transition.
     */
    Owl2.prototype.next = function(speed) {
        speed = speed || false;
        this.to(this.relative(this.current()) + 1, speed);
    };

    /**
     * Slides to the previous item.
     * @public
     * @param {Number} [speed] - The time in milliseconds for the transition.
     */
    Owl2.prototype.prev = function(speed) {
        speed = speed || false;
        this.to(this.relative(this.current()) - 1, speed);
    };

    /**
     * Handles the end of an animation.
     * @protected
     * @param {Event} event - The event arguments.
     */
    Owl2.prototype.transitionEnd = function(event) {

        // if css2 animation then event object is undefined
        if (event !== undefined) {
            event.stopPropagation();

            // Catch only owl2-stage transitionEnd event
            if ((event.target || event.srcElement || event.originalTarget) !== this.$stage.get(0)) {
                return false;
            }
        }

        this.state.inMotion = false;
        this.trigger('translated');
    };

    /**
     * Gets viewport width.
     * @protected
     * @return {Number} - The width in pixel.
     */
    Owl2.prototype.viewport = function() {
        var width;
        if (this.options.responsiveBaseElement !== window) {
            width = $(this.options.responsiveBaseElement).width();
        } else if (window.innerWidth) {
            width = window.innerWidth;
        } else if (document.documentElement && document.documentElement.clientWidth) {
            width = document.documentElement.clientWidth;
        } else {
            throw 'Can not detect viewport width.';
        }
        return width;
    };

    /**
     * Replaces the current content.
     * @public
     * @param {HTMLElement|jQuery|String} content - The new content.
     */
    Owl2.prototype.replace = function(content) {
        this.$stage.empty();
        this._items = [];

        if (content) {
            content = (content instanceof jQuery) ? content : $(content);
        }

        if (this.settings.nestedItemSelector) {
            content = content.find('.' + this.settings.nestedItemSelector);
        }

        content.filter(function() {
            return this.nodeType === 1;
        }).each($.proxy(function(index, item) {
            item = this.prepare(item);
            this.$stage.append(item);
            this._items.push(item);
            this._mergers.push(item.find('[data-merge]').andSelf('[data-merge]').attr('data-merge') * 1 || 1);
        }, this));

        this.reset($.isNumeric(this.settings.startPosition) ? this.settings.startPosition : 0);

        this.invalidate('items');
    };

    /**
     * Adds an item.
     * @todo Use `item` instead of `content` for the event arguments.
     * @public
     * @param {HTMLElement|jQuery|String} content - The item content to add.
     * @param {Number} [position] - The relative position at which to insert the item otherwise the item will be added to the end.
     */
    Owl2.prototype.add = function(content, position) {
        position = position === undefined ? this._items.length : this.normalize(position, true);

        this.trigger('add', { content: content, position: position });

        if (this._items.length === 0 || position === this._items.length) {
            this.$stage.append(content);
            this._items.push(content);
            this._mergers.push(content.find('[data-merge]').andSelf('[data-merge]').attr('data-merge') * 1 || 1);
        } else {
            this._items[position].before(content);
            this._items.splice(position, 0, content);
            this._mergers.splice(position, 0, content.find('[data-merge]').andSelf('[data-merge]').attr('data-merge') * 1 || 1);
        }

        this.invalidate('items');

        this.trigger('added', { content: content, position: position });
    };

    /**
     * Removes an item by its position.
     * @todo Use `item` instead of `content` for the event arguments.
     * @public
     * @param {Number} position - The relative position of the item to remove.
     */
    Owl2.prototype.remove = function(position) {
        position = this.normalize(position, true);

        if (position === undefined) {
            return;
        }

        this.trigger('remove', { content: this._items[position], position: position });

        this._items[position].remove();
        this._items.splice(position, 1);
        this._mergers.splice(position, 1);

        this.invalidate('items');

        this.trigger('removed', { content: null, position: position });
    };

    /**
     * Adds triggerable events.
     * @protected
     */
    Owl2.prototype.addTriggerableEvents = function() {
        var handler = $.proxy(function(callback, event) {
            return $.proxy(function(e) {
                if (e.relatedTarget !== this) {
                    this.suppress([ event ]);
                    callback.apply(this, [].slice.call(arguments, 1));
                    this.release([ event ]);
                }
            }, this);
        }, this);

        $.each({
            'next': this.next,
            'prev': this.prev,
            'to': this.to,
            'destroy': this.destroy,
            'refresh': this.refresh,
            'replace': this.replace,
            'add': this.add,
            'remove': this.remove
        }, $.proxy(function(event, callback) {
            this.$element.on(event + '.owl.carousel2', handler(callback, event + '.owl.carousel2'));
        }, this));

    };

    /**
     * Watches the visibility of the carousel2 element.
     * @protected
     */
    Owl2.prototype.watchVisibility = function() {

        // test on zepto
        if (!isElVisible(this.$element.get(0))) {
            this.$element.addClass('owl2-hidden');
            window.clearInterval(this.e._checkVisibile);
            this.e._checkVisibile = window.setInterval($.proxy(checkVisible, this), 500);
        }

        function isElVisible(el) {
            return el.offsetWidth > 0 && el.offsetHeight > 0;
        }

        function checkVisible() {
            if (isElVisible(this.$element.get(0))) {
                this.$element.removeClass('owl2-hidden');
                this.refresh();
                window.clearInterval(this.e._checkVisibile);
            }
        }
    };

    /**
     * Preloads images with auto width.
     * @protected
     * @todo Still to test
     */
    Owl2.prototype.preloadAutoWidthImages = function(imgs) {
        var loaded, that, $el, img;

        loaded = 0;
        that = this;
        imgs.each(function(i, el) {
            $el = $(el);
            img = new Image();

            img.onload = function() {
                loaded++;
                $el.attr('src', img.src);
                $el.css('opacity', 1);
                if (loaded >= imgs.length) {
                    that.state.imagesLoaded = true;
                    that.initialize();
                }
            };

            img.src = $el.attr('src') || $el.attr('data-src') || $el.attr('data-src-retina');
        });
    };

    /**
     * Destroys the carousel2.
     * @public
     */
    Owl2.prototype.destroy = function() {

        if (this.$element.hasClass(this.settings.themeClass)) {
            this.$element.removeClass(this.settings.themeClass);
        }

        if (this.settings.responsive !== false) {
            $(window).off('resize.owl.carousel2');
        }

        if (this.transitionEndVendor) {
            this.off(this.$stage.get(0), this.transitionEndVendor, this.e._transitionEnd);
        }

        for ( var i in this._plugins) {
            this._plugins[i].destroy();
        }

        if (this.settings.mouseDrag || this.settings.touchDrag) {
            this.$stage.off('mousedown touchstart touchcancel');
            $(document).off('.owl.dragEvents');
            this.$stage.get(0).onselectstart = function() {};
            this.$stage.off('dragstart', function() { return false });
        }

        // remove event handlers in the ".owl.carousel2" namespace
        this.$element.off('.owl');

        this.$stage.children('.cloned').remove();
        this.e = null;
        this.$element.removeData('owlCarousel2');

        this.$stage.children().contents().unwrap();
        this.$stage.children().unwrap();
        this.$stage.unwrap();
    };

    /**
     * Operators to calculate right-to-left and left-to-right.
     * @protected
     * @param {Number} [a] - The left side operand.
     * @param {String} [o] - The operator.
     * @param {Number} [b] - The right side operand.
     */
    Owl2.prototype.op = function(a, o, b) {
        var rtl = this.settings.rtl;
        switch (o) {
            case '<':
                return rtl ? a > b : a < b;
            case '>':
                return rtl ? a < b : a > b;
            case '>=':
                return rtl ? a <= b : a >= b;
            case '<=':
                return rtl ? a >= b : a <= b;
            default:
                break;
        }
    };

    /**
     * Attaches to an internal event.
     * @protected
     * @param {HTMLElement} element - The event source.
     * @param {String} event - The event name.
     * @param {Function} listener - The event handler to attach.
     * @param {Boolean} capture - Wether the event should be handled at the capturing phase or not.
     */
    Owl2.prototype.on = function(element, event, listener, capture) {
        if (element.addEventListener) {
            element.addEventListener(event, listener, capture);
        } else if (element.attachEvent) {
            element.attachEvent('on' + event, listener);
        }
    };

    /**
     * Detaches from an internal event.
     * @protected
     * @param {HTMLElement} element - The event source.
     * @param {String} event - The event name.
     * @param {Function} listener - The attached event handler to detach.
     * @param {Boolean} capture - Wether the attached event handler was registered as a capturing listener or not.
     */
    Owl2.prototype.off = function(element, event, listener, capture) {
        if (element.removeEventListener) {
            element.removeEventListener(event, listener, capture);
        } else if (element.detachEvent) {
            element.detachEvent('on' + event, listener);
        }
    };

    /**
     * Triggers an public event.
     * @protected
     * @param {String} name - The event name.
     * @param {*} [data=null] - The event data.
     * @param {String} [namespace=.owl.carousel2] - The event namespace.
     * @returns {Event} - The event arguments.
     */
    Owl2.prototype.trigger = function(name, data, namespace) {
        var status = {
            item: { count: this._items.length, index: this.current() }
        }, handler = $.camelCase(
            $.grep([ 'on', name, namespace ], function(v) { return v })
                .join('-').toLowerCase()
        ), event = $.Event(
            [ name, 'owl', namespace || 'carousel2' ].join('.').toLowerCase(),
            $.extend({ relatedTarget: this }, status, data)
        );

        if (!this._supress[name]) {
            $.each(this._plugins, function(name, plugin) {
                if (plugin.onTrigger) {
                    plugin.onTrigger(event);
                }
            });

            this.$element.trigger(event);

            if (this.settings && typeof this.settings[handler] === 'function') {
                this.settings[handler].apply(this, event);
            }
        }

        return event;
    };

    /**
     * Suppresses events.
     * @protected
     * @param {Array.<String>} events - The events to suppress.
     */
    Owl2.prototype.suppress = function(events) {
        $.each(events, $.proxy(function(index, event) {
            this._supress[event] = true;
        }, this));
    }

    /**
     * Releases suppressed events.
     * @protected
     * @param {Array.<String>} events - The events to release.
     */
    Owl2.prototype.release = function(events) {
        $.each(events, $.proxy(function(index, event) {
            delete this._supress[event];
        }, this));
    }

    /**
     * Checks the availability of some browser features.
     * @protected
     */
    Owl2.prototype.browserSupport = function() {
        this.support3d = isPerspective();

        if (this.support3d) {
            this.transformVendor = isTransform();

            // take transitionend event name by detecting transition
            var endVendors = [ 'transitionend', 'webkitTransitionEnd', 'transitionend', 'oTransitionEnd' ];
            this.transitionEndVendor = endVendors[isTransition()];

            // take vendor name from transform name
            this.vendorName = this.transformVendor.replace(/Transform/i, '');
            this.vendorName = this.vendorName !== '' ? '-' + this.vendorName.toLowerCase() + '-' : '';
        }

        this.state.orientation = window.orientation;
    };

    /**
     * Get touch/drag coordinats.
     * @private
     * @param {event} - mousedown/touchstart event
     * @returns {object} - Contains X and Y of current mouse/touch position
     */

    function getTouches(event) {
        if (event.touches !== undefined) {
            return {
                x: event.touches[0].pageX,
                y: event.touches[0].pageY
            };
        }

        if (event.touches === undefined) {
            if (event.pageX !== undefined) {
                return {
                    x: event.pageX,
                    y: event.pageY
                };
            }

            if (event.pageX === undefined) {
                return {
                    x: event.clientX,
                    y: event.clientY
                };
            }
        }
    }

    /**
     * Checks for CSS support.
     * @private
     * @param {Array} array - The CSS properties to check for.
     * @returns {Array} - Contains the supported CSS property name and its index or `false`.
     */
    function isStyleSupported(array) {
        var p, s, fake = document.createElement('div'), list = array;
        for (p in list) {
            s = list[p];
            if (typeof fake.style[s] !== 'undefined') {
                fake = null;
                return [ s, p ];
            }
        }
        return [ false ];
    }

    /**
     * Checks for CSS transition support.
     * @private
     * @todo Realy bad design
     * @returns {Number}
     */
    function isTransition() {
        return isStyleSupported([ 'transition', 'WebkitTransition', 'MozTransition', 'OTransition' ])[1];
    }

    /**
     * Checks for CSS transform support.
     * @private
     * @returns {String} The supported property name or false.
     */
    function isTransform() {
        return isStyleSupported([ 'transform', 'WebkitTransform', 'MozTransform', 'OTransform', 'msTransform' ])[0];
    }

    /**
     * Checks for CSS perspective support.
     * @private
     * @returns {String} The supported property name or false.
     */
    function isPerspective() {
        return isStyleSupported([ 'perspective', 'webkitPerspective', 'MozPerspective', 'OPerspective', 'MsPerspective' ])[0];
    }

    /**
     * Checks wether touch is supported or not.
     * @private
     * @returns {Boolean}
     */
    function isTouchSupport() {
        return 'ontouchstart' in window || !!(navigator.msMaxTouchPoints);
    }

    /**
     * Checks wether touch is supported or not for IE.
     * @private
     * @returns {Boolean}
     */
    function isTouchSupportIE() {
        return window.navigator.msPointerEnabled;
    }

    /**
     * The jQuery Plugin for the Owl2 Carousel
     * @public
     */
    $.fn.owlCarousel2 = function(options) {
        return this.each(function() {
            if (!$(this).data('owlCarousel2')) {
                $(this).data('owlCarousel2', new Owl2(this, options));
            }
        });
    };

    /**
     * The constructor for the jQuery Plugin
     * @public
     */
    $.fn.owlCarousel2.Constructor = Owl2;

})(window.Zepto || window.jQuery, window, document);

/**
 * Lazy Plugin
 * @version 2.0.0
 * @author Bartosz Wojciechowski
 * @license The MIT License (MIT)
 */
;(function($, window, document, undefined) {

    /**
     * Creates the lazy plugin.
     * @class The Lazy Plugin
     * @param {Owl2} carousel2 - The Owl2 Carousel
     */
    var Lazy = function(carousel2) {

        /**
         * Reference to the core.
         * @protected
         * @type {Owl2}
         */
        this._core = carousel2;

        /**
         * Already loaded items.
         * @protected
         * @type {Array.<jQuery>}
         */
        this._loaded = [];

        /**
         * Event handlers.
         * @protected
         * @type {Object}
         */
        this._handlers = {
            'initialized.owl.carousel2 change.owl.carousel2': $.proxy(function(e) {
                if (!e.namespace) {
                    return;
                }

                if (!this._core.settings || !this._core.settings.lazyLoad) {
                    return;
                }

                if ((e.property && e.property.name == 'position') || e.type == 'initialized') {
                    var settings = this._core.settings,
                        n = (settings.center && Math.ceil(settings.items / 2) || settings.items),
                        i = ((settings.center && n * -1) || 0),
                        position = ((e.property && e.property.value) || this._core.current()) + i,
                        clones = this._core.clones().length,
                        load = $.proxy(function(i, v) { this.load(v) }, this);

                    while (i++ < n) {
                        this.load(clones / 2 + this._core.relative(position));
                        clones && $.each(this._core.clones(this._core.relative(position++)), load);
                    }
                }
            }, this)
        };

        // set the default options
        this._core.options = $.extend({}, Lazy.Defaults, this._core.options);

        // register event handler
        this._core.$element.on(this._handlers);
    }

    /**
     * Default options.
     * @public
     */
    Lazy.Defaults = {
        lazyLoad: false
    }

    /**
     * Loads all resources of an item at the specified position.
     * @param {Number} position - The absolute position of the item.
     * @protected
     */
    Lazy.prototype.load = function(position) {
        var $item = this._core.$stage.children().eq(position),
            $elements = $item && $item.find('.owl2-lazy');

        if (!$elements || $.inArray($item.get(0), this._loaded) > -1) {
            return;
        }

        $elements.each($.proxy(function(index, element) {
            var $element = $(element), image,
                url = (window.devicePixelRatio > 1 && $element.attr('data-src-retina')) || $element.attr('data-src');

            this._core.trigger('load', { element: $element, url: url }, 'lazy');

            if ($element.is('img')) {
                $element.one('load.owl.lazy', $.proxy(function() {
                    $element.css('opacity', 1);
                    this._core.trigger('loaded', { element: $element, url: url }, 'lazy');
                }, this)).attr('src', url);
            } else {
                image = new Image();
                image.onload = $.proxy(function() {
                    $element.css({
                        'background-image': 'url(' + url + ')',
                        'opacity': '1'
                    });
                    this._core.trigger('loaded', { element: $element, url: url }, 'lazy');
                }, this);
                image.src = url;
            }
        }, this));

        this._loaded.push($item.get(0));
    }

    /**
     * Destroys the plugin.
     * @public
     */
    Lazy.prototype.destroy = function() {
        var handler, property;

        for (handler in this.handlers) {
            this._core.$element.off(handler, this.handlers[handler]);
        }
        for (property in Object.getOwnPropertyNames(this)) {
            typeof this[property] != 'function' && (this[property] = null);
        }
    }

    $.fn.owlCarousel2.Constructor.Plugins.Lazy = Lazy;

})(window.Zepto || window.jQuery, window, document);

/**
 * AutoHeight Plugin
 * @version 2.0.0
 * @author Bartosz Wojciechowski
 * @license The MIT License (MIT)
 */
;(function($, window, document, undefined) {

    /**
     * Creates the auto height plugin.
     * @class The Auto Height Plugin
     * @param {Owl2} carousel2 - The Owl2 Carousel
     */
    var AutoHeight = function(carousel2) {
        /**
         * Reference to the core.
         * @protected
         * @type {Owl2}
         */
        this._core = carousel2;

        /**
         * All event handlers.
         * @protected
         * @type {Object}
         */
        this._handlers = {
            'initialized.owl.carousel2': $.proxy(function() {
                if (this._core.settings.autoHeight) {
                    this.update();
                }
            }, this),
            'changed.owl.carousel2': $.proxy(function(e) {
                if (this._core.settings.autoHeight && e.property.name == 'position'){
                    this.update();
                }
            }, this),
            'loaded.owl.lazy': $.proxy(function(e) {
                if (this._core.settings.autoHeight && e.element.closest('.' + this._core.settings.itemClass)
                    === this._core.$stage.children().eq(this._core.current())) {
                    this.update();
                }
            }, this)
        };

        // set default options
        this._core.options = $.extend({}, AutoHeight.Defaults, this._core.options);

        // register event handlers
        this._core.$element.on(this._handlers);
    };

    /**
     * Default options.
     * @public
     */
    AutoHeight.Defaults = {
        autoHeight: false,
        autoHeightClass: 'owl2-height'
    };

    /**
     * Updates the view.
     */
    AutoHeight.prototype.update = function() {
        this._core.$stage.parent()
            .height(this._core.$stage.children().eq(this._core.current()).height())
            .addClass(this._core.settings.autoHeightClass);
    };

    AutoHeight.prototype.destroy = function() {
        var handler, property;

        for (handler in this._handlers) {
            this._core.$element.off(handler, this._handlers[handler]);
        }
        for (property in Object.getOwnPropertyNames(this)) {
            typeof this[property] != 'function' && (this[property] = null);
        }
    };

    $.fn.owlCarousel2.Constructor.Plugins.AutoHeight = AutoHeight;

})(window.Zepto || window.jQuery, window, document);

/**
 * Video Plugin
 * @version 2.0.0
 * @author Bartosz Wojciechowski
 * @license The MIT License (MIT)
 */
;(function($, window, document, undefined) {

    /**
     * Creates the video plugin.
     * @class The Video Plugin
     * @param {Owl2} carousel2 - The Owl2 Carousel
     */
    var Video = function(carousel2) {
        /**
         * Reference to the core.
         * @protected
         * @type {Owl2}
         */
        this._core = carousel2;

        /**
         * Cache all video URLs.
         * @protected
         * @type {Object}
         */
        this._videos = {};

        /**
         * Current playing item.
         * @protected
         * @type {jQuery}
         */
        this._playing = null;

        /**
         * Whether this is in fullscreen or not.
         * @protected
         * @type {Boolean}
         */
        this._fullscreen = false;

        /**
         * All event handlers.
         * @protected
         * @type {Object}
         */
        this._handlers = {
            'resize.owl.carousel2': $.proxy(function(e) {
                if (this._core.settings.video && !this.isInFullScreen()) {
                    e.preventDefault();
                }
            }, this),
            'refresh.owl.carousel2 changed.owl.carousel2': $.proxy(function(e) {
                if (this._playing) {
                    this.stop();
                }
            }, this),
            'prepared.owl.carousel2': $.proxy(function(e) {
                var $element = $(e.content).find('.owl2-video');
                if ($element.length) {
                    $element.css('display', 'none');
                    this.fetch($element, $(e.content));
                }
            }, this)
        };

        // set default options
        this._core.options = $.extend({}, Video.Defaults, this._core.options);

        // register event handlers
        this._core.$element.on(this._handlers);

        this._core.$element.on('click.owl.video', '.owl2-video-play-icon', $.proxy(function(e) {
            this.play(e);
        }, this));
    };

    /**
     * Default options.
     * @public
     */
    Video.Defaults = {
        video: false,
        videoHeight: false,
        videoWidth: false
    };

    /**
     * Gets the video ID and the type (YouTube/Vimeo only).
     * @protected
     * @param {jQuery} target - The target containing the video data.
     * @param {jQuery} item - The item containing the video.
     */
    Video.prototype.fetch = function(target, item) {

        var type = target.attr('data-vimeo-id') ? 'vimeo' : 'youtube',
            id = target.attr('data-vimeo-id') || target.attr('data-youtube-id'),
            width = target.attr('data-width') || this._core.settings.videoWidth,
            height = target.attr('data-height') || this._core.settings.videoHeight,
            url = target.attr('href');

        if (url) {
            id = url.match(/(http:|https:|)\/\/(player.|www.)?(vimeo\.com|youtu(be\.com|\.be|be\.googleapis\.com))\/(video\/|embed\/|watch\?v=|v\/)?([A-Za-z0-9._%-]*)(\&\S+)?/);

            if (id[3].indexOf('youtu') > -1) {
                type = 'youtube';
            } else if (id[3].indexOf('vimeo') > -1) {
                type = 'vimeo';
            } else {
                throw new Error('Video URL not supported.');
            }
            id = id[6];
        } else {
            throw new Error('Missing video URL.');
        }

        this._videos[url] = {
            type: type,
            id: id,
            width: width,
            height: height
        };

        item.attr('data-video', url);

        this.thumbnail(target, this._videos[url]);
    };

    /**
     * Creates video thumbnail.
     * @protected
     * @param {jQuery} target - The target containing the video data.
     * @param {Object} info - The video info object.
     * @see `fetch`
     */
    Video.prototype.thumbnail = function(target, video) {

        var tnLink,
            icon,
            path,
            dimensions = video.width && video.height ? 'style="width:' + video.width + 'px;height:' + video.height + 'px;"' : '',
            customTn = target.find('img'),
            srcType = 'src',
            lazyClass = '',
            settings = this._core.settings,
            create = function(path) {
                icon = '<div class="owl2-video-play-icon"></div>';

                if (settings.lazyLoad) {
                    tnLink = '<div class="owl2-video-tn ' + lazyClass + '" ' + srcType + '="' + path + '"></div>';
                } else {
                    tnLink = '<div class="owl2-video-tn" style="opacity:1;background-image:url(' + path + ')"></div>';
                }
                target.after(tnLink);
                target.after(icon);
            };

        // wrap video content into owl2-video-wrapper div
        target.wrap('<div class="owl2-video-wrapper"' + dimensions + '></div>');

        if (this._core.settings.lazyLoad) {
            srcType = 'data-src';
            lazyClass = 'owl2-lazy';
        }

        // custom thumbnail
        if (customTn.length) {
            create(customTn.attr(srcType));
            customTn.remove();
            return false;
        }

        if (video.type === 'youtube') {
            path = "http://img.youtube.com/vi/" + video.id + "/hqdefault.jpg";
            create(path);
        } else if (video.type === 'vimeo') {
            $.ajax({
                type: 'GET',
                url: 'http://vimeo.com/api/v2/video/' + video.id + '.json',
                jsonp: 'callback',
                dataType: 'jsonp',
                success: function(data) {
                    path = data[0].thumbnail_large;
                    create(path);
                }
            });
        }
    };

    /**
     * Stops the current video.
     * @public
     */
    Video.prototype.stop = function() {
        this._core.trigger('stop', null, 'video');
        this._playing.find('.owl2-video-frame').remove();
        this._playing.removeClass('owl2-video-playing');
        this._playing = null;
    };

    /**
     * Starts the current video.
     * @public
     * @param {Event} ev - The event arguments.
     */
    Video.prototype.play = function(ev) {
        this._core.trigger('play', null, 'video');

        if (this._playing) {
            this.stop();
        }

        var target = $(ev.target || ev.srcElement),
            item = target.closest('.' + this._core.settings.itemClass),
            video = this._videos[item.attr('data-video')],
            width = video.width || '100%',
            height = video.height || this._core.$stage.height(),
            html, wrap;

        if (video.type === 'youtube') {
            html = '<iframe width="' + width + '" height="' + height + '" src="http://www.youtube.com/embed/'
            + video.id + '?autoplay=1&v=' + video.id + '" frameborder="0" allowfullscreen></iframe>';
        } else if (video.type === 'vimeo') {
            html = '<iframe src="http://player.vimeo.com/video/' + video.id + '?autoplay=1" width="' + width
            + '" height="' + height
            + '" frameborder="0" webkitallowfullscreen mozallowfullscreen allowfullscreen></iframe>';
        }

        item.addClass('owl2-video-playing');
        this._playing = item;

        wrap = $('<div style="height:' + height + 'px; width:' + width + 'px" class="owl2-video-frame">'
        + html + '</div>');
        target.after(wrap);
    };

    /**
     * Checks whether an video is currently in full screen mode or not.
     * @todo Bad style because looks like a readonly method but changes members.
     * @protected
     * @returns {Boolean}
     */
    Video.prototype.isInFullScreen = function() {

        // if Vimeo Fullscreen mode
        var element = document.fullscreenElement || document.mozFullScreenElement
            || document.webkitFullscreenElement;

        if (element && $(element).parent().hasClass('owl2-video-frame')) {
            this._core.speed(0);
            this._fullscreen = true;
        }

        if (element && this._fullscreen && this._playing) {
            return false;
        }

        // comming back from fullscreen
        if (this._fullscreen) {
            this._fullscreen = false;
            return false;
        }

        // check full screen mode and window orientation
        if (this._playing) {
            if (this._core.state.orientation !== window.orientation) {
                this._core.state.orientation = window.orientation;
                return false;
            }
        }

        return true;
    };

    /**
     * Destroys the plugin.
     */
    Video.prototype.destroy = function() {
        var handler, property;

        this._core.$element.off('click.owl.video');

        for (handler in this._handlers) {
            this._core.$element.off(handler, this._handlers[handler]);
        }
        for (property in Object.getOwnPropertyNames(this)) {
            typeof this[property] != 'function' && (this[property] = null);
        }
    };

    $.fn.owlCarousel2.Constructor.Plugins.Video = Video;

})(window.Zepto || window.jQuery, window, document);

/**
 * Animate Plugin
 * @version 2.0.0
 * @author Bartosz Wojciechowski
 * @license The MIT License (MIT)
 */
;(function($, window, document, undefined) {

    /**
     * Creates the animate plugin.
     * @class The Navigation Plugin
     * @param {Owl2} scope - The Owl2 Carousel
     */
    var Animate = function(scope) {
        this.core = scope;
        this.core.options = $.extend({}, Animate.Defaults, this.core.options);
        this.swapping = true;
        this.previous = undefined;
        this.next = undefined;

        this.handlers = {
            'change.owl.carousel2': $.proxy(function(e) {
                if (e.property.name == 'position') {
                    this.previous = this.core.current();
                    this.next = e.property.value;
                }
            }, this),
            'drag.owl.carousel2 dragged.owl.carousel2 translated.owl.carousel2': $.proxy(function(e) {
                this.swapping = e.type == 'translated';
            }, this),
            'translate.owl.carousel2': $.proxy(function(e) {
                if (this.swapping && (this.core.options.animateOut || this.core.options.animateIn)) {
                    this.swap();
                }
            }, this)
        };

        this.core.$element.on(this.handlers);
    };

    /**
     * Default options.
     * @public
     */
    Animate.Defaults = {
        animateOut: false,
        animateIn: false
    };

    /**
     * Toggles the animation classes whenever an translations starts.
     * @protected
     * @returns {Boolean|undefined}
     */
    Animate.prototype.swap = function() {

        if (this.core.settings.items !== 1 || !this.core.support3d) {
            return;
        }

        this.core.speed(0);

        var left,
            clear = $.proxy(this.clear, this),
            previous = this.core.$stage.children().eq(this.previous),
            next = this.core.$stage.children().eq(this.next),
            incoming = this.core.settings.animateIn,
            outgoing = this.core.settings.animateOut;

        if (this.core.current() === this.previous) {
            return;
        }

        if (outgoing) {
            left = this.core.coordinates(this.previous) - this.core.coordinates(this.next);
            previous.css( { 'left': left + 'px' } )
                .addClass('animated owl2-animated-out')
                .addClass(outgoing)
                .one('webkitAnimationEnd mozAnimationEnd MSAnimationEnd oanimationend animationend', clear);
        }

        if (incoming) {
            next.addClass('animated owl2-animated-in')
                .addClass(incoming)
                .one('webkitAnimationEnd mozAnimationEnd MSAnimationEnd oanimationend animationend', clear);
        }
    };

    Animate.prototype.clear = function(e) {
        $(e.target).css( { 'left': '' } )
            .removeClass('animated owl2-animated-out owl2-animated-in')
            .removeClass(this.core.settings.animateIn)
            .removeClass(this.core.settings.animateOut);
        this.core.transitionEnd();
    }

    /**
     * Destroys the plugin.
     * @public
     */
    Animate.prototype.destroy = function() {
        var handler, property;

        for (handler in this.handlers) {
            this.core.$element.off(handler, this.handlers[handler]);
        }
        for (property in Object.getOwnPropertyNames(this)) {
            typeof this[property] != 'function' && (this[property] = null);
        }
    };

    $.fn.owlCarousel2.Constructor.Plugins.Animate = Animate;

})(window.Zepto || window.jQuery, window, document);

/**
 * Autoplay Plugin
 * @version 2.0.0
 * @author Bartosz Wojciechowski
 * @license The MIT License (MIT)
 */
;(function($, window, document, undefined) {

    /**
     * Creates the autoplay plugin.
     * @class The Autoplay Plugin
     * @param {Owl2} scope - The Owl2 Carousel
     */
    var Autoplay = function(scope) {
        this.core = scope;
        this.core.options = $.extend({}, Autoplay.Defaults, this.core.options);

        this.handlers = {
            'translated.owl.carousel2 refreshed.owl.carousel2': $.proxy(function() {
                this.autoplay();
            }, this),
            'play.owl.autoplay': $.proxy(function(e, t, s) {
                this.play(t, s);
            }, this),
            'stop.owl.autoplay': $.proxy(function() {
                this.stop();
            }, this),
            'mouseover.owl.autoplay': $.proxy(function() {
                if (this.core.settings.autoplayHoverPause) {
                    this.pause();
                }

            }, this),
            'mouseleave.owl.autoplay': $.proxy(function() {
                if (this.core.settings.autoplayHoverPause) {
                    this.autoplay();
                }

            }, this)
        };

        this.core.$element.on(this.handlers);
    };

    /**
     * Default options.
     * @public
     */
    Autoplay.Defaults = {
        autoplay: false,
        autoplayTimeout: 5000,
        autoplayHoverPause: false,
        autoplaySpeed: false
    };

    /**
     * @protected
     * @todo Must be documented.
     */
    Autoplay.prototype.autoplay = function() {
        if (this.core.options.autoplay) {
            this.core.settings.autoplay = true;
        }
        if (this.core.settings.autoplay && !this.core.state.videoPlay) {
            window.clearInterval(this.interval);

            this.interval = window.setInterval($.proxy(function() {
                this.play();
            }, this), this.core.settings.autoplayTimeout);
        } else {
            window.clearInterval(this.interval);
        }
    };

    /**
     * Starts the autoplay.
     * @public
     * @param {Number} [timeout] - ...
     * @param {Number} [speed] - ...
     * @returns {Boolean|undefined} - ...
     * @todo Must be documented.
     */
    Autoplay.prototype.play = function(timeout, speed) {
        // if tab is inactive - doesnt work in <IE10
        if (this.core.options.autoplay) {
            this.core.settings.autoplay = true;
        }
        if (document.hidden === true) {
            return;
        }

        if (this.core.state.isTouch || this.core.state.isScrolling
            || this.core.state.isSwiping || this.core.state.inMotion) {
            return;
        }

        if (this.core.settings.autoplay === false) {
            window.clearInterval(this.interval);
            return;
        }

        this.core.next(this.core.settings.autoplaySpeed);
    };

    /**
     * Stops the autoplay.
     * @public
     */
    Autoplay.prototype.stop = function() {
        if (this.core.options.autoplay) {
            this.core.settings.autoplay = false;
        }
        window.clearInterval(this.interval);
    };

    /**
     * Pauses the autoplay.
     * @public
     */
    Autoplay.prototype.pause = function() {
        if (this.core.options.autoplay) {
            this.core.settings.autoplay = false;
        }
        window.clearInterval(this.interval);
    };

    /**
     * Destroys the plugin.
     */
    Autoplay.prototype.destroy = function() {
        var handler, property;

        window.clearInterval(this.interval);

        for (handler in this.handlers) {
            this.core.$element.off(handler, this.handlers[handler]);
        }
        for (property in Object.getOwnPropertyNames(this)) {
            typeof this[property] != 'function' && (this[property] = null);
        }
    };

    $.fn.owlCarousel2.Constructor.Plugins.autoplay = Autoplay;

})(window.Zepto || window.jQuery, window, document);

/**
 * Navigation Plugin
 * @version 2.0.0
 * @author Artus Kolanowski
 * @license The MIT License (MIT)
 */
;(function($, window, document, undefined) {
    'use strict';

    /**
     * Creates the navigation plugin.
     * @class The Navigation Plugin
     * @param {Owl2} carousel2 - The Owl2 Carousel.
     */
    var Navigation = function(carousel2) {
        /**
         * Reference to the core.
         * @protected
         * @type {Owl2}
         */
        this._core = carousel2;

        /**
         * Indicates whether the plugin is initialized or not.
         * @protected
         * @type {Boolean}
         */
        this._initialized = false;

        /**
         * The current paging indexes.
         * @protected
         * @type {Array}
         */
        this._pages = [];

        /**
         * All DOM elements of the user interface.
         * @protected
         * @type {Object}
         */
        this._controls = {};

        /**
         * Markup for an indicator.
         * @protected
         * @type {Array.<String>}
         */
        this._templates = [];

        /**
         * The carousel2 element.
         * @type {jQuery}
         */
        this.$element = this._core.$element;

        /**
         * Overridden methods of the carousel2.
         * @protected
         * @type {Object}
         */
        this._overrides = {
            next: this._core.next,
            prev: this._core.prev,
            to: this._core.to
        };

        /**
         * All event handlers.
         * @protected
         * @type {Object}
         */
        this._handlers = {
            'prepared.owl.carousel2': $.proxy(function(e) {
                if (this._core.settings.dotsData) {
                    this._templates.push($(e.content).find('[data-dot]').andSelf('[data-dot]').attr('data-dot'));
                }
            }, this),
            'add.owl.carousel2': $.proxy(function(e) {
                if (this._core.settings.dotsData) {
                    this._templates.splice(e.position, 0, $(e.content).find('[data-dot]').andSelf('[data-dot]').attr('data-dot'));
                }
            }, this),
            'remove.owl.carousel2 prepared.owl.carousel2': $.proxy(function(e) {
                if (this._core.settings.dotsData) {
                    this._templates.splice(e.position, 1);
                }
            }, this),
            'change.owl.carousel2': $.proxy(function(e) {
                if (e.property.name == 'position') {
                    if (!this._core.state.revert && !this._core.settings.loop && this._core.settings.navRewind) {
                        var current = this._core.current(),
                            maximum = this._core.maximum(),
                            minimum = this._core.minimum();
                        e.data = e.property.value > maximum
                            ? current >= maximum ? minimum : maximum
                            : e.property.value < minimum ? maximum : e.property.value;
                    }
                }
            }, this),
            'changed.owl.carousel2': $.proxy(function(e) {
                if (e.property.name == 'position') {
                    this.draw();
                }
            }, this),
            'refreshed.owl.carousel2': $.proxy(function() {
                if (!this._initialized) {
                    this.initialize();
                    this._initialized = true;
                }
                this._core.trigger('refresh', null, 'navigation');
                this.update();
                this.draw();
                this._core.trigger('refreshed', null, 'navigation');
            }, this)
        };

        // set default options
        this._core.options = $.extend({}, Navigation.Defaults, this._core.options);

        // register event handlers
        this.$element.on(this._handlers);
    }

    /**
     * Default options.
     * @public
     * @todo Rename `slideBy` to `navBy`
     */
    Navigation.Defaults = {
        nav: false,
        navRewind: true,
        navText: [ 'prev', 'next' ],
        navSpeed: false,
        navElement: 'div',
        navContainer: false,
        navContainerClass: 'owl2-nav',
        navClass: [ 'owl2-prev', 'owl2-next' ],
        slideBy: 1,
        dotClass: 'owl2-dot',
        dotsClass: 'owl2-dots',
        dots: true,
        dotsEach: false,
        dotData: false,
        dotsSpeed: false,
        dotsContainer: false,
        controlsClass: 'owl2-controls'
    }

    /**
     * Initializes the layout of the plugin and extends the carousel2.
     * @protected
     */
    Navigation.prototype.initialize = function() {
        var $container, override,
            options = this._core.settings;

        // create the indicator template
        if (!options.dotsData) {
            this._templates = [ $('<div>')
                .addClass(options.dotClass)
                .append($('<span>'))
                .prop('outerHTML') ];
        }

        // create controls container if needed
        if (!options.navContainer || !options.dotsContainer) {
            this._controls.$container = $('<div>')
                .addClass(options.controlsClass)
                .appendTo(this.$element);
        }

        // create DOM structure for absolute navigation
        this._controls.$indicators = options.dotsContainer ? $(options.dotsContainer)
            : $('<div>').hide().addClass(options.dotsClass).appendTo(this._controls.$container);

        this._controls.$indicators.on('click', 'div', $.proxy(function(e) {
            var index = $(e.target).parent().is(this._controls.$indicators)
                ? $(e.target).index() : $(e.target).parent().index();

            e.preventDefault();

            this.to(index, options.dotsSpeed);
        }, this));

        // create DOM structure for relative navigation
        $container = options.navContainer ? $(options.navContainer)
            : $('<div>').addClass(options.navContainerClass).prependTo(this._controls.$container);

        this._controls.$next = $('<' + options.navElement + '>');
        this._controls.$previous = this._controls.$next.clone();

        this._controls.$previous
            .addClass(options.navClass[0])
            .html(options.navText[0])
            .hide()
            .prependTo($container)
            .on('click', $.proxy(function(e) {
                this.prev(options.navSpeed);
            }, this));
        this._controls.$next
            .addClass(options.navClass[1])
            .html(options.navText[1])
            .hide()
            .appendTo($container)
            .on('click', $.proxy(function(e) {
                this.next(options.navSpeed);
            }, this));

        // override public methods of the carousel2
        for (override in this._overrides) {
            this._core[override] = $.proxy(this[override], this);
        }
    }

    /**
     * Destroys the plugin.
     * @protected
     */
    Navigation.prototype.destroy = function() {
        var handler, control, property, override;

        for (handler in this._handlers) {
            this.$element.off(handler, this._handlers[handler]);
        }
        for (control in this._controls) {
            this._controls[control].remove();
        }
        for (override in this.overides) {
            this._core[override] = this._overrides[override];
        }
        for (property in Object.getOwnPropertyNames(this)) {
            typeof this[property] != 'function' && (this[property] = null);
        }
    }

    /**
     * Updates the internal state.
     * @protected
     */
    Navigation.prototype.update = function() {
        var i, j, k,
            options = this._core.settings,
            lower = this._core.clones().length / 2,
            upper = lower + this._core.items().length,
            size = options.center || options.autoWidth || options.dotData
                ? 1 : options.dotsEach || options.items;

        if (options.slideBy !== 'page') {
            options.slideBy = Math.min(options.slideBy, options.items);
        }

        if (options.dots || options.slideBy == 'page') {
            this._pages = [];

            for (i = lower, j = 0, k = 0; i < upper; i++) {
                if (j >= size || j === 0) {
                    this._pages.push({
                        start: i - lower,
                        end: i - lower + size - 1
                    });
                    j = 0, ++k;
                }
                j += this._core.mergers(this._core.relative(i));
            }
        }
    }

    /**
     * Draws the user interface.
     * @todo The option `dotData` wont work.
     * @protected
     */
    Navigation.prototype.draw = function() {
        var difference, i, html = '',
            options = this._core.settings,
            $items = this._core.$stage.children(),
            index = this._core.relative(this._core.current());

        if (options.nav && !options.loop && !options.navRewind) {
            this._controls.$previous.toggleClass('disabled', index <= 0);
            this._controls.$next.toggleClass('disabled', index >= this._core.maximum());
        }

        this._controls.$previous.toggle(options.nav);
        this._controls.$next.toggle(options.nav);

        if (options.dots) {
            difference = this._pages.length - this._controls.$indicators.children().length;

            if (options.dotData && difference !== 0) {
                for (i = 0; i < this._controls.$indicators.children().length; i++) {
                    html += this._templates[this._core.relative(i)];
                }
                this._controls.$indicators.html(html);
            } else if (difference > 0) {
                html = new Array(difference + 1).join(this._templates[0]);
                this._controls.$indicators.append(html);
            } else if (difference < 0) {
                this._controls.$indicators.children().slice(difference).remove();
            }

            this._controls.$indicators.find('.active').removeClass('active');
            this._controls.$indicators.children().eq($.inArray(this.current(), this._pages)).addClass('active');
        }

        this._controls.$indicators.toggle(options.dots);
    }

    /**
     * Extends event data.
     * @protected
     * @param {Event} event - The event object which gets thrown.
     */
    Navigation.prototype.onTrigger = function(event) {
        var settings = this._core.settings;

        event.page = {
            index: $.inArray(this.current(), this._pages),
            count: this._pages.length,
            size: settings && (settings.center || settings.autoWidth || settings.dotData
                ? 1 : settings.dotsEach || settings.items)
        };
    }

    /**
     * Gets the current page position of the carousel2.
     * @protected
     * @returns {Number}
     */
    Navigation.prototype.current = function() {
        var index = this._core.relative(this._core.current());
        return $.grep(this._pages, function(o) {
            return o.start <= index && o.end >= index;
        }).pop();
    }

    /**
     * Gets the current succesor/predecessor position.
     * @protected
     * @returns {Number}
     */
    Navigation.prototype.getPosition = function(successor) {
        var position, length,
            options = this._core.settings;

        if (options.slideBy == 'page') {
            position = $.inArray(this.current(), this._pages);
            length = this._pages.length;
            successor ? ++position : --position;
            position = this._pages[((position % length) + length) % length].start;
        } else {
            position = this._core.relative(this._core.current());
            length = this._core.items().length;
            successor ? position += options.slideBy : position -= options.slideBy;
        }
        return position;
    }

    /**
     * Slides to the next item or page.
     * @public
     * @param {Number} [speed=false] - The time in milliseconds for the transition.
     */
    Navigation.prototype.next = function(speed) {
        $.proxy(this._overrides.to, this._core)(this.getPosition(true), speed);
    }

    /**
     * Slides to the previous item or page.
     * @public
     * @param {Number} [speed=false] - The time in milliseconds for the transition.
     */
    Navigation.prototype.prev = function(speed) {
        $.proxy(this._overrides.to, this._core)(this.getPosition(false), speed);
    }

    /**
     * Slides to the specified item or page.
     * @public
     * @param {Number} position - The position of the item or page.
     * @param {Number} [speed] - The time in milliseconds for the transition.
     * @param {Boolean} [standard=false] - Whether to use the standard behaviour or not.
     */
    Navigation.prototype.to = function(position, speed, standard) {
        var length;

        if (!standard) {
            length = this._pages.length;
            $.proxy(this._overrides.to, this._core)(this._pages[((position % length) + length) % length].start, speed);
        } else {
            $.proxy(this._overrides.to, this._core)(position, speed);
        }
    }

    $.fn.owlCarousel2.Constructor.Plugins.Navigation = Navigation;

})(window.Zepto || window.jQuery, window, document);

/**
 * Hash Plugin
 * @version 2.0.0
 * @author Artus Kolanowski
 * @license The MIT License (MIT)
 */
;(function($, window, document, undefined) {
    'use strict';

    /**
     * Creates the hash plugin.
     * @class The Hash Plugin
     * @param {Owl2} carousel2 - The Owl2 Carousel
     */
    var Hash = function(carousel2) {
        /**
         * Reference to the core.
         * @protected
         * @type {Owl2}
         */
        this._core = carousel2;

        /**
         * Hash table for the hashes.
         * @protected
         * @type {Object}
         */
        this._hashes = {};

        /**
         * The carousel2 element.
         * @type {jQuery}
         */
        this.$element = this._core.$element;

        /**
         * All event handlers.
         * @protected
         * @type {Object}
         */
        this._handlers = {
            'initialized.owl.carousel2': $.proxy(function() {
                if (this._core.settings.startPosition == 'URLHash') {
                    $(window).trigger('hashchange.owl.navigation');
                }
            }, this),
            'prepared.owl.carousel2': $.proxy(function(e) {
                var hash = $(e.content).find('[data-hash]').andSelf('[data-hash]').attr('data-hash');
                this._hashes[hash] = e.content;
            }, this)
        };

        // set default options
        this._core.options = $.extend({}, Hash.Defaults, this._core.options);

        // register the event handlers
        this.$element.on(this._handlers);

        // register event listener for hash navigation
        $(window).on('hashchange.owl.navigation', $.proxy(function() {
            var hash = window.location.hash.substring(1),
                items = this._core.$stage.children(),
                position = this._hashes[hash] && items.index(this._hashes[hash]) || 0;

            if (!hash) {
                return false;
            }

            this._core.to(position, false, true);
        }, this));
    }

    /**
     * Default options.
     * @public
     */
    Hash.Defaults = {
        URLhashListener: false
    }

    /**
     * Destroys the plugin.
     * @public
     */
    Hash.prototype.destroy = function() {
        var handler, property;

        $(window).off('hashchange.owl.navigation');

        for (handler in this._handlers) {
            this._core.$element.off(handler, this._handlers[handler]);
        }
        for (property in Object.getOwnPropertyNames(this)) {
            typeof this[property] != 'function' && (this[property] = null);
        }
    }

    $.fn.owlCarousel2.Constructor.Plugins.Hash = Hash;

})(window.Zepto || window.jQuery, window, document);