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Filename : slick.js
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/*
     _ _      _       _
 ___| (_) ___| | __  (_)___
/ __| | |/ __| |/ /  | / __|
\__ \ | | (__|   < _ | \__ \
|___/_|_|\___|_|\_(_)/ |___/
                   |__/

 Version: 1.6.0
  Author: Ken Wheeler
 Website: http://kenwheeler.github.io
    Docs: http://kenwheeler.github.io/slick
    Repo: http://github.com/kenwheeler/slick
  Issues: http://github.com/kenwheeler/slick/issues

  */
  /* global window, document, define, jQuery, setInterval, clearInterval */
  (function(factory) {
    'use strict';
    if (typeof define === 'function' && define.amd) {
        define(['jquery'], factory);
    } else if (typeof exports !== 'undefined') {
        module.exports = factory(require('jquery'));
    } else {
        factory(jQuery);
    }

}(function($) {
    'use strict';
    var Slick = window.Slick || {};

    Slick = (function() {

        var instanceUid = 0;

        function Slick(element, settings) {

            var _ = this, dataSettings;

            _.defaults = {
                accessibility: true,
                adaptiveHeight: false,
                appendArrows: $(element),
                appendDots: $(element),
                arrows: true,
                asNavFor: null,
                prevArrow: '<button type="button" data-role="none" class="slick-prev" aria-label="Previous" tabindex="0" role="button">Previous</button>',
                nextArrow: '<button type="button" data-role="none" class="slick-next" aria-label="Next" tabindex="0" role="button">Next</button>',
                autoplay: false,
                autoplaySpeed: 3000,
                centerMode: false,
                centerPadding: '50px',
                cssEase: 'ease',
                customPaging: function(slider, i) {
                    return $('<button type="button" data-role="none" role="button" tabindex="0" />').text(i + 1);
                },
                dots: false,
                dotsClass: 'slick-dots',
                draggable: true,
                easing: 'linear',
                edgeFriction: 0.35,
                fade: false,
                focusOnSelect: false,
                infinite: true,
                initialSlide: 0,
                lazyLoad: 'ondemand',
                mobileFirst: false,
                pauseOnHover: true,
                pauseOnFocus: true,
                pauseOnDotsHover: false,
                respondTo: 'window',
                responsive: null,
                rows: 1,
                rtl: false,
                slide: '',
                slidesPerRow: 1,
                slidesToShow: 1,
                slidesToScroll: 1,
                speed: 500,
                swipe: true,
                swipeToSlide: false,
                touchMove: true,
                touchThreshold: 5,
                useCSS: true,
                useTransform: true,
                variableWidth: false,
                vertical: false,
                verticalSwiping: false,
                waitForAnimate: true,
                zIndex: 1000
            };

            _.initials = {
                animating: false,
                dragging: false,
                autoPlayTimer: null,
                currentDirection: 0,
                currentLeft: null,
                currentSlide: 0,
                direction: 1,
                $dots: null,
                listWidth: null,
                listHeight: null,
                loadIndex: 0,
                $nextArrow: null,
                $prevArrow: null,
                slideCount: null,
                slideWidth: null,
                $slideTrack: null,
                $slides: null,
                sliding: false,
                slideOffset: 0,
                swipeLeft: null,
                $list: null,
                touchObject: {},
                transformsEnabled: false,
                unslicked: false
            };

            $.extend(_, _.initials);

            _.activeBreakpoint = null;
            _.animType = null;
            _.animProp = null;
            _.breakpoints = [];
            _.breakpointSettings = [];
            _.cssTransitions = false;
            _.focussed = false;
            _.interrupted = false;
            _.hidden = 'hidden';
            _.paused = true;
            _.positionProp = null;
            _.respondTo = null;
            _.rowCount = 1;
            _.shouldClick = true;
            _.$slider = $(element);
            _.$slidesCache = null;
            _.transformType = null;
            _.transitionType = null;
            _.visibilityChange = 'visibilitychange';
            _.windowWidth = 0;
            _.windowTimer = null;

            dataSettings = $(element).data('slick') || {};

            _.options = $.extend({}, _.defaults, settings, dataSettings);

            _.currentSlide = _.options.initialSlide;

            _.originalSettings = _.options;

            if (typeof document.mozHidden !== 'undefined') {
                _.hidden = 'mozHidden';
                _.visibilityChange = 'mozvisibilitychange';
            } else if (typeof document.webkitHidden !== 'undefined') {
                _.hidden = 'webkitHidden';
                _.visibilityChange = 'webkitvisibilitychange';
            }

            _.autoPlay = $.proxy(_.autoPlay, _);
            _.autoPlayClear = $.proxy(_.autoPlayClear, _);
            _.autoPlayIterator = $.proxy(_.autoPlayIterator, _);
            _.changeSlide = $.proxy(_.changeSlide, _);
            _.clickHandler = $.proxy(_.clickHandler, _);
            _.selectHandler = $.proxy(_.selectHandler, _);
            _.setPosition = $.proxy(_.setPosition, _);
            _.swipeHandler = $.proxy(_.swipeHandler, _);
            _.dragHandler = $.proxy(_.dragHandler, _);
            _.keyHandler = $.proxy(_.keyHandler, _);

            _.instanceUid = instanceUid++;

            // A simple way to check for HTML strings
            // Strict HTML recognition (must start with <)
            // Extracted from jQuery v1.11 source
            _.htmlExpr = /^(?:\s*(<[\w\W]+>)[^>]*)$/;


            _.registerBreakpoints();
            _.init(true);

        }

        return Slick;

    }());

Slick.prototype.activateADA = function() {
    var _ = this;

    _.$slideTrack.find('.slick-active').attr({
        'aria-hidden': 'false'
    }).find('a, input, button, select').attr({
        'tabindex': '0'
    });

};

Slick.prototype.addSlide = Slick.prototype.slickAdd = function(markup, index, addBefore) {

    var _ = this;

    if (typeof(index) === 'boolean') {
        addBefore = index;
        index = null;
    } else if (index < 0 || (index >= _.slideCount)) {
        return false;
    }

    _.unload();

    if (typeof(index) === 'number') {
        if (index === 0 && _.$slides.length === 0) {
            $(markup).appendTo(_.$slideTrack);
        } else if (addBefore) {
            $(markup).insertBefore(_.$slides.eq(index));
        } else {
            $(markup).insertAfter(_.$slides.eq(index));
        }
    } else {
        if (addBefore === true) {
            $(markup).prependTo(_.$slideTrack);
        } else {
            $(markup).appendTo(_.$slideTrack);
        }
    }

    _.$slides = _.$slideTrack.children(this.options.slide);

    _.$slideTrack.children(this.options.slide).detach();

    _.$slideTrack.append(_.$slides);

    _.$slides.each(function(index, element) {
        $(element).attr('data-slick-index', index);
    });

    _.$slidesCache = _.$slides;

    _.reinit();

};

Slick.prototype.animateHeight = function() {
    var _ = this;
    if (_.options.slidesToShow === 1 && _.options.adaptiveHeight === true && _.options.vertical === false) {
        var targetHeight = _.$slides.eq(_.currentSlide).outerHeight(true);
        _.$list.animate({
            height: targetHeight
        }, _.options.speed);
    }
};

Slick.prototype.animateSlide = function(targetLeft, callback) {

    var animProps = {},
    _ = this;

    _.animateHeight();

    if (_.options.rtl === true && _.options.vertical === false) {
        targetLeft = -targetLeft;
    }
    if (_.transformsEnabled === false) {
        if (_.options.vertical === false) {
            _.$slideTrack.animate({
                left: targetLeft
            }, _.options.speed, _.options.easing, callback);
        } else {
            _.$slideTrack.animate({
                top: targetLeft
            }, _.options.speed, _.options.easing, callback);
        }

    } else {

        if (_.cssTransitions === false) {
            if (_.options.rtl === true) {
                _.currentLeft = -(_.currentLeft);
            }
            $({
                animStart: _.currentLeft
            }).animate({
                animStart: targetLeft
            }, {
                duration: _.options.speed,
                easing: _.options.easing,
                step: function(now) {
                    now = Math.ceil(now);
                    if (_.options.vertical === false) {
                        animProps[_.animType] = 'translate(' +
                        now + 'px, 0px)';
                        _.$slideTrack.css(animProps);
                    } else {
                        animProps[_.animType] = 'translate(0px,' +
                        now + 'px)';
                        _.$slideTrack.css(animProps);
                    }
                },
                complete: function() {
                    if (callback) {
                        callback.call();
                    }
                }
            });

        } else {

            _.applyTransition();
            targetLeft = Math.ceil(targetLeft);

            if (_.options.vertical === false) {
                animProps[_.animType] = 'translate3d(' + targetLeft  + 'px, 0px, 0px)';
            }
            else {
                animProps[_.animType] = 'translate3d(0px,' + targetLeft + 'px, 0px)';
            }
            _.$slideTrack.css(animProps);

            if (callback) {
                setTimeout(function() {

                    _.disableTransition();

                    callback.call();
                }, _.options.speed);
            }

        }

    }

};

Slick.prototype.getNavTarget = function() {

    var _ = this,
    asNavFor = _.options.asNavFor;

    if ( asNavFor && asNavFor !== null ) {
        asNavFor = $(asNavFor).not(_.$slider);
    }

    return asNavFor;

};

Slick.prototype.asNavFor = function(index) {

    var _ = this,
    asNavFor = _.getNavTarget();

    if ( asNavFor !== null && typeof asNavFor === 'object' ) {
        asNavFor.each(function() {
            var target = $(this).slick('getSlick');
            if(!target.unslicked) {
                target.slideHandler(index, true);
            }
        });
    }

};

Slick.prototype.applyTransition = function(slide) {

    var _ = this,
    transition = {};

    if (_.options.fade === false) {
        transition[_.transitionType] = _.transformType + ' ' + _.options.speed + 'ms ' + _.options.cssEase;
    } else {
        transition[_.transitionType] = 'opacity ' + _.options.speed + 'ms ' + _.options.cssEase;
    }

    if (_.options.fade === false) {
        _.$slideTrack.css(transition);
    } else {
        _.$slides.eq(slide).css(transition);
    }

};

Slick.prototype.autoPlay = function() {

    var _ = this;

    _.autoPlayClear();

    if ( _.slideCount > _.options.slidesToShow ) {
        _.autoPlayTimer = setInterval( _.autoPlayIterator, _.options.autoplaySpeed );
    }

};

Slick.prototype.autoPlayClear = function() {

    var _ = this;

    if (_.autoPlayTimer) {
        clearInterval(_.autoPlayTimer);
    }

};

Slick.prototype.autoPlayIterator = function() {

    var _ = this,
    slideTo = _.currentSlide + _.options.slidesToScroll;

    if ( !_.paused && !_.interrupted && !_.focussed ) {

        if ( _.options.infinite === false ) {

            if ( _.direction === 1 && ( _.currentSlide + 1 ) === ( _.slideCount - 1 )) {
                _.direction = 0;
            }

            else if ( _.direction === 0 ) {

                slideTo = _.currentSlide - _.options.slidesToScroll;

                if ( _.currentSlide - 1 === 0 ) {
                    _.direction = 1;
                }

            }

        }

        _.slideHandler( slideTo );

    }

};

Slick.prototype.buildArrows = function() {

    var _ = this;

    if (_.options.arrows === true ) {

        _.$prevArrow = $(_.options.prevArrow).addClass('slick-arrow');
        _.$nextArrow = $(_.options.nextArrow).addClass('slick-arrow');

        if( _.slideCount > _.options.slidesToShow ) {

            _.$prevArrow.removeClass('slick-hidden').removeAttr('aria-hidden tabindex');
            _.$nextArrow.removeClass('slick-hidden').removeAttr('aria-hidden tabindex');

            if (_.htmlExpr.test(_.options.prevArrow)) {
                _.$prevArrow.prependTo(_.options.appendArrows);
            }

            if (_.htmlExpr.test(_.options.nextArrow)) {
                _.$nextArrow.appendTo(_.options.appendArrows);
            }

            if (_.options.infinite !== true) {
                _.$prevArrow
                .addClass('slick-disabled')
                .attr('aria-disabled', 'true');
            }

        } else {

            _.$prevArrow.add( _.$nextArrow )

            .addClass('slick-hidden')
            .attr({
                'aria-disabled': 'true',
                'tabindex': '-1'
            });

        }

    }

};

Slick.prototype.buildDots = function() {

    var _ = this,
    i, dot;

    if (_.options.dots === true && _.slideCount > _.options.slidesToShow) {

        _.$slider.addClass('slick-dotted');

        dot = $('<ul />').addClass(_.options.dotsClass);

        for (i = 0; i <= _.getDotCount(); i += 1) {
            dot.append($('<li />').append(_.options.customPaging.call(this, _, i)));
        }

        _.$dots = dot.appendTo(_.options.appendDots);

        _.$dots.find('li').first().addClass('slick-active').attr('aria-hidden', 'false');

    }

};

Slick.prototype.buildOut = function() {

    var _ = this;

    _.$slides =
    _.$slider
    .children( _.options.slide + ':not(.slick-cloned)')
    .addClass('slick-slide');

    _.slideCount = _.$slides.length;

    _.$slides.each(function(index, element) {
        $(element)
        .attr('data-slick-index', index)
        .data('originalStyling', $(element).attr('style') || '');
    });

    _.$slider.addClass('slick-slider');

    _.$slideTrack = (_.slideCount === 0) ?
    $('<div class="slick-track"/>').appendTo(_.$slider) :
    _.$slides.wrapAll('<div class="slick-track"/>').parent();

    _.$list = _.$slideTrack.wrap(
        '<div aria-live="polite" class="slick-list"/>').parent();
    _.$slideTrack.css('opacity', 0);

    if (_.options.centerMode === true || _.options.swipeToSlide === true) {
        _.options.slidesToScroll = 1;
    }

    $('img[data-lazy]', _.$slider).not('[src]').addClass('slick-loading');

    _.setupInfinite();

    _.buildArrows();

    _.buildDots();

    _.updateDots();


    _.setSlideClasses(typeof _.currentSlide === 'number' ? _.currentSlide : 0);

    if (_.options.draggable === true) {
        _.$list.addClass('draggable');
    }

};

Slick.prototype.buildRows = function() {

    var _ = this, a, b, c, newSlides, numOfSlides, originalSlides,slidesPerSection;

    newSlides = document.createDocumentFragment();
    originalSlides = _.$slider.children();

    if(_.options.rows > 1) {

        slidesPerSection = _.options.slidesPerRow * _.options.rows;
        numOfSlides = Math.ceil(
            originalSlides.length / slidesPerSection
            );

        for(a = 0; a < numOfSlides; a++){
            var slide = document.createElement('div');
            for(b = 0; b < _.options.rows; b++) {
                var row = document.createElement('div');
                for(c = 0; c < _.options.slidesPerRow; c++) {
                    var target = (a * slidesPerSection + ((b * _.options.slidesPerRow) + c));
                    if (originalSlides.get(target)) {
                        row.appendChild(originalSlides.get(target));
                    }
                }
                slide.appendChild(row);
            }
            newSlides.appendChild(slide);
        }

        _.$slider.empty().append(newSlides);
        _.$slider.children().children().children()
        .css({
            'width':(100 / _.options.slidesPerRow) + '%',
            'display': 'inline-block'
        });

    }

};

Slick.prototype.checkResponsive = function(initial, forceUpdate) {

    var _ = this,
    breakpoint, targetBreakpoint, respondToWidth, triggerBreakpoint = false;
    var sliderWidth = _.$slider.width();
    var windowWidth = window.innerWidth || $(window).width();

    if (_.respondTo === 'window') {
        respondToWidth = windowWidth;
    } else if (_.respondTo === 'slider') {
        respondToWidth = sliderWidth;
    } else if (_.respondTo === 'min') {
        respondToWidth = Math.min(windowWidth, sliderWidth);
    }

    if ( _.options.responsive &&
        _.options.responsive.length &&
        _.options.responsive !== null) {

        targetBreakpoint = null;

    for (breakpoint in _.breakpoints) {
        if (_.breakpoints.hasOwnProperty(breakpoint)) {
            if (_.originalSettings.mobileFirst === false) {
                if (respondToWidth < _.breakpoints[breakpoint]) {
                    targetBreakpoint = _.breakpoints[breakpoint];
                }
            } else {
                if (respondToWidth > _.breakpoints[breakpoint]) {
                    targetBreakpoint = _.breakpoints[breakpoint];
                }
            }
        }
    }

    if (targetBreakpoint !== null) {
        if (_.activeBreakpoint !== null) {
            if (targetBreakpoint !== _.activeBreakpoint || forceUpdate) {
                _.activeBreakpoint =
                targetBreakpoint;
                if (_.breakpointSettings[targetBreakpoint] === 'unslick') {
                    _.unslick(targetBreakpoint);
                } else {
                    _.options = $.extend({}, _.originalSettings,
                        _.breakpointSettings[
                        targetBreakpoint]);
                    if (initial === true) {
                        _.currentSlide = _.options.initialSlide;
                    }
                    _.refresh(initial);
                }
                triggerBreakpoint = targetBreakpoint;
            }
        } else {
            _.activeBreakpoint = targetBreakpoint;
            if (_.breakpointSettings[targetBreakpoint] === 'unslick') {
                _.unslick(targetBreakpoint);
            } else {
                _.options = $.extend({}, _.originalSettings,
                    _.breakpointSettings[
                    targetBreakpoint]);
                if (initial === true) {
                    _.currentSlide = _.options.initialSlide;
                }
                _.refresh(initial);
            }
            triggerBreakpoint = targetBreakpoint;
        }
    } else {
        if (_.activeBreakpoint !== null) {
            _.activeBreakpoint = null;
            _.options = _.originalSettings;
            if (initial === true) {
                _.currentSlide = _.options.initialSlide;
            }
            _.refresh(initial);
            triggerBreakpoint = targetBreakpoint;
        }
    }

            // only trigger breakpoints during an actual break. not on initialize.
            if( !initial && triggerBreakpoint !== false ) {
                _.$slider.trigger('breakpoint', [_, triggerBreakpoint]);
            }
        }

    };

    Slick.prototype.changeSlide = function(event, dontAnimate) {

        var _ = this,
        $target = $(event.currentTarget),
        indexOffset, slideOffset, unevenOffset;

        // If target is a link, prevent default action.
        if($target.is('a')) {
            event.preventDefault();
        }

        // If target is not the <li> element (ie: a child), find the <li>.
        if(!$target.is('li')) {
            $target = $target.closest('li');
        }

        unevenOffset = (_.slideCount % _.options.slidesToScroll !== 0);
        indexOffset = unevenOffset ? 0 : (_.slideCount - _.currentSlide) % _.options.slidesToScroll;

        switch (event.data.message) {

            case 'previous':
            slideOffset = indexOffset === 0 ? _.options.slidesToScroll : _.options.slidesToShow - indexOffset;
            if (_.slideCount > _.options.slidesToShow) {
                _.slideHandler(_.currentSlide - slideOffset, false, dontAnimate);
            }
            break;

            case 'next':
            slideOffset = indexOffset === 0 ? _.options.slidesToScroll : indexOffset;
            if (_.slideCount > _.options.slidesToShow) {
                _.slideHandler(_.currentSlide + slideOffset, false, dontAnimate);
            }
            break;

            case 'index':
            var index = event.data.index === 0 ? 0 :
            event.data.index || $target.index() * _.options.slidesToScroll;

            _.slideHandler(_.checkNavigable(index), false, dontAnimate);
            $target.children().trigger('focus');
            break;

            default:
            return;
        }

    };

    Slick.prototype.checkNavigable = function(index) {

        var _ = this,
        navigables, prevNavigable;

        navigables = _.getNavigableIndexes();
        prevNavigable = 0;
        if (index > navigables[navigables.length - 1]) {
            index = navigables[navigables.length - 1];
        } else {
            for (var n in navigables) {
                if (index < navigables[n]) {
                    index = prevNavigable;
                    break;
                }
                prevNavigable = navigables[n];
            }
        }

        return index;
    };

    Slick.prototype.cleanUpEvents = function() {

        var _ = this;

        if (_.options.dots && _.$dots !== null) {

            $('li', _.$dots)
            .off('click.slick', _.changeSlide)
            .off('mouseenter.slick', $.proxy(_.interrupt, _, true))
            .off('mouseleave.slick', $.proxy(_.interrupt, _, false));

        }

        _.$slider.off('focus.slick blur.slick');

        if (_.options.arrows === true && _.slideCount > _.options.slidesToShow) {
            _.$prevArrow && _.$prevArrow.off('click.slick', _.changeSlide);
            _.$nextArrow && _.$nextArrow.off('click.slick', _.changeSlide);
        }

        _.$list.off('touchstart.slick mousedown.slick', _.swipeHandler);
        _.$list.off('touchmove.slick mousemove.slick', _.swipeHandler);
        _.$list.off('touchend.slick mouseup.slick', _.swipeHandler);
        _.$list.off('touchcancel.slick mouseleave.slick', _.swipeHandler);

        _.$list.off('click.slick', _.clickHandler);

        $(document).off(_.visibilityChange, _.visibility);

        _.cleanUpSlideEvents();

        if (_.options.accessibility === true) {
            _.$list.off('keydown.slick', _.keyHandler);
        }

        if (_.options.focusOnSelect === true) {
            $(_.$slideTrack).children().off('click.slick', _.selectHandler);
        }

        $(window).off('orientationchange.slick.slick-' + _.instanceUid, _.orientationChange);

        $(window).off('resize.slick.slick-' + _.instanceUid, _.resize);

        $('[draggable!=true]', _.$slideTrack).off('dragstart', _.preventDefault);

        $(window).off('load.slick.slick-' + _.instanceUid, _.setPosition);
        $(document).off('ready.slick.slick-' + _.instanceUid, _.setPosition);

    };

    Slick.prototype.cleanUpSlideEvents = function() {

        var _ = this;

        _.$list.off('mouseenter.slick', $.proxy(_.interrupt, _, true));
        _.$list.off('mouseleave.slick', $.proxy(_.interrupt, _, false));

    };

    Slick.prototype.cleanUpRows = function() {

        var _ = this, originalSlides;

        if(_.options.rows > 1) {
            originalSlides = _.$slides.children().children();
            originalSlides.removeAttr('style');
            _.$slider.empty().append(originalSlides);
        }

    };

    Slick.prototype.clickHandler = function(event) {

        var _ = this;

        if (_.shouldClick === false) {
            event.stopImmediatePropagation();
            event.stopPropagation();
            event.preventDefault();
        }

    };

    Slick.prototype.destroy = function(refresh) {

        var _ = this;

        _.autoPlayClear();

        _.touchObject = {};

        _.cleanUpEvents();

        $('.slick-cloned', _.$slider).detach();

        if (_.$dots) {
            _.$dots.remove();
        }


        if ( _.$prevArrow && _.$prevArrow.length ) {

            _.$prevArrow
            .removeClass('slick-disabled slick-arrow slick-hidden')
            .removeAttr('aria-hidden aria-disabled tabindex')
            .css('display','');

            if ( _.htmlExpr.test( _.options.prevArrow )) {
                _.$prevArrow.remove();
            }
        }

        if ( _.$nextArrow && _.$nextArrow.length ) {

            _.$nextArrow
            .removeClass('slick-disabled slick-arrow slick-hidden')
            .removeAttr('aria-hidden aria-disabled tabindex')
            .css('display','');

            if ( _.htmlExpr.test( _.options.nextArrow )) {
                _.$nextArrow.remove();
            }

        }


        if (_.$slides) {

            _.$slides
            .removeClass('slick-slide slick-active slick-center slick-visible slick-current')
            .removeAttr('aria-hidden')
            .removeAttr('data-slick-index')
            .each(function(){
                $(this).attr('style', $(this).data('originalStyling'));
            });

            _.$slideTrack.children(this.options.slide).detach();

            _.$slideTrack.detach();

            _.$list.detach();

            _.$slider.append(_.$slides);
        }

        _.cleanUpRows();

        _.$slider.removeClass('slick-slider');
        _.$slider.removeClass('slick-initialized');
        _.$slider.removeClass('slick-dotted');

        _.unslicked = true;

        if(!refresh) {
            _.$slider.trigger('destroy', [_]);
        }

    };

    Slick.prototype.disableTransition = function(slide) {

        var _ = this,
        transition = {};

        transition[_.transitionType] = '';

        if (_.options.fade === false) {
            _.$slideTrack.css(transition);
        } else {
            _.$slides.eq(slide).css(transition);
        }

    };

    Slick.prototype.fadeSlide = function(slideIndex, callback) {

        var _ = this;

        if (_.cssTransitions === false) {

            _.$slides.eq(slideIndex).css({
                zIndex: _.options.zIndex
            });

            _.$slides.eq(slideIndex).animate({
                opacity: 1
            }, _.options.speed, _.options.easing, callback);

        } else {

            _.applyTransition(slideIndex);

            _.$slides.eq(slideIndex).css({
                opacity: 1,
                zIndex: _.options.zIndex
            });

            if (callback) {
                setTimeout(function() {

                    _.disableTransition(slideIndex);

                    callback.call();
                }, _.options.speed);
            }

        }

    };

    Slick.prototype.fadeSlideOut = function(slideIndex) {

        var _ = this;

        if (_.cssTransitions === false) {

            _.$slides.eq(slideIndex).animate({
                opacity: 0,
                zIndex: _.options.zIndex - 2
            }, _.options.speed, _.options.easing);

        } else {

            _.applyTransition(slideIndex);

            _.$slides.eq(slideIndex).css({
                opacity: 0,
                zIndex: _.options.zIndex - 2
            });

        }

    };

    Slick.prototype.filterSlides = Slick.prototype.slickFilter = function(filter) {

        var _ = this;

        if (filter !== null) {

            _.$slidesCache = _.$slides;

            _.unload();

            _.$slideTrack.children(this.options.slide).detach();

            _.$slidesCache.filter(filter).appendTo(_.$slideTrack);

            _.reinit();

        }

    };

    Slick.prototype.focusHandler = function() {

        var _ = this;

        _.$slider
        .off('focus.slick blur.slick')
        .on('focus.slick blur.slick',
            '*:not(.slick-arrow)', function(event) {

                event.stopImmediatePropagation();
                var $sf = $(this);

                setTimeout(function() {

                    if( _.options.pauseOnFocus ) {
                        _.focussed = $sf.is(':focus');
                        _.autoPlay();
                    }

                }, 0);

            });
    };

    Slick.prototype.getCurrent = Slick.prototype.slickCurrentSlide = function() {

        var _ = this;
        return _.currentSlide;

    };

    Slick.prototype.getDotCount = function() {

        var _ = this;

        var breakPoint = 0;
        var counter = 0;
        var pagerQty = 0;

        if (_.options.infinite === true) {
            while (breakPoint < _.slideCount) {
                ++pagerQty;
                breakPoint = counter + _.options.slidesToScroll;
                counter += _.options.slidesToScroll <= _.options.slidesToShow ? _.options.slidesToScroll : _.options.slidesToShow;
            }
        } else if (_.options.centerMode === true) {
            pagerQty = _.slideCount;
        } else if(!_.options.asNavFor) {
            pagerQty = 1 + Math.ceil((_.slideCount - _.options.slidesToShow) / _.options.slidesToScroll);
        }else {
            while (breakPoint < _.slideCount) {
                ++pagerQty;
                breakPoint = counter + _.options.slidesToScroll;
                counter += _.options.slidesToScroll <= _.options.slidesToShow ? _.options.slidesToScroll : _.options.slidesToShow;
            }
        }

        return pagerQty - 1;

    };

    Slick.prototype.getLeft = function(slideIndex) {

        var _ = this,
        targetLeft,
        verticalHeight,
        verticalOffset = 0,
        targetSlide;

        _.slideOffset = 0;
        verticalHeight = _.$slides.first().outerHeight(true);

        if (_.options.infinite === true) {
            if (_.slideCount > _.options.slidesToShow) {
                _.slideOffset = (_.slideWidth * _.options.slidesToShow) * -1;
                verticalOffset = (verticalHeight * _.options.slidesToShow) * -1;
            }
            if (_.slideCount % _.options.slidesToScroll !== 0) {
                if (slideIndex + _.options.slidesToScroll > _.slideCount && _.slideCount > _.options.slidesToShow) {
                    if (slideIndex > _.slideCount) {
                        _.slideOffset = ((_.options.slidesToShow - (slideIndex - _.slideCount)) * _.slideWidth) * -1;
                        verticalOffset = ((_.options.slidesToShow - (slideIndex - _.slideCount)) * verticalHeight) * -1;
                    } else {
                        _.slideOffset = ((_.slideCount % _.options.slidesToScroll) * _.slideWidth) * -1;
                        verticalOffset = ((_.slideCount % _.options.slidesToScroll) * verticalHeight) * -1;
                    }
                }
            }
        } else {
            if (slideIndex + _.options.slidesToShow > _.slideCount) {
                _.slideOffset = ((slideIndex + _.options.slidesToShow) - _.slideCount) * _.slideWidth;
                verticalOffset = ((slideIndex + _.options.slidesToShow) - _.slideCount) * verticalHeight;
            }
        }

        if (_.slideCount <= _.options.slidesToShow) {
            _.slideOffset = 0;
            verticalOffset = 0;
        }

        if (_.options.centerMode === true && _.options.infinite === true) {
            _.slideOffset += _.slideWidth * Math.floor(_.options.slidesToShow / 2) - _.slideWidth;
        } else if (_.options.centerMode === true) {
            _.slideOffset = 0;
            _.slideOffset += _.slideWidth * Math.floor(_.options.slidesToShow / 2);
        }

        if (_.options.vertical === false) {
            targetLeft = ((slideIndex * _.slideWidth) * -1) + _.slideOffset;
        } else {
            targetLeft = ((slideIndex * verticalHeight) * -1) + verticalOffset;
        }

        if (_.options.variableWidth === true) {

            if (_.slideCount <= _.options.slidesToShow || _.options.infinite === false) {
                targetSlide = _.$slideTrack.children('.slick-slide').eq(slideIndex);
            } else {
                targetSlide = _.$slideTrack.children('.slick-slide').eq(slideIndex + _.options.slidesToShow);
            }

            if (_.options.rtl === true) {
                if (targetSlide[0]) {
                    targetLeft = (_.$slideTrack.width() - targetSlide[0].offsetLeft - targetSlide.width()) * -1;
                } else {
                    targetLeft =  0;
                }
            } else {
                targetLeft = targetSlide[0] ? targetSlide[0].offsetLeft * -1 : 0;
            }

            if (_.options.centerMode === true) {
                if (_.slideCount <= _.options.slidesToShow || _.options.infinite === false) {
                    targetSlide = _.$slideTrack.children('.slick-slide').eq(slideIndex);
                } else {
                    targetSlide = _.$slideTrack.children('.slick-slide').eq(slideIndex + _.options.slidesToShow + 1);
                }

                if (_.options.rtl === true) {
                    if (targetSlide[0]) {
                        targetLeft = (_.$slideTrack.width() - targetSlide[0].offsetLeft - targetSlide.width()) * -1;
                    } else {
                        targetLeft =  0;
                    }
                } else {
                    targetLeft = targetSlide[0] ? targetSlide[0].offsetLeft * -1 : 0;
                }

                targetLeft += (_.$list.width() - targetSlide.outerWidth()) / 2;
            }
        }

        return targetLeft;

    };

    Slick.prototype.getOption = Slick.prototype.slickGetOption = function(option) {

        var _ = this;

        return _.options[option];

    };

    Slick.prototype.getNavigableIndexes = function() {

        var _ = this,
        breakPoint = 0,
        counter = 0,
        indexes = [],
        max;

        if (_.options.infinite === false) {
            max = _.slideCount;
        } else {
            breakPoint = _.options.slidesToScroll * -1;
            counter = _.options.slidesToScroll * -1;
            max = _.slideCount * 2;
        }

        while (breakPoint < max) {
            indexes.push(breakPoint);
            breakPoint = counter + _.options.slidesToScroll;
            counter += _.options.slidesToScroll <= _.options.slidesToShow ? _.options.slidesToScroll : _.options.slidesToShow;
        }

        return indexes;

    };

    Slick.prototype.getSlick = function() {

        return this;

    };

    Slick.prototype.getSlideCount = function() {

        var _ = this,
        slidesTraversed, swipedSlide, centerOffset;

        centerOffset = _.options.centerMode === true ? _.slideWidth * Math.floor(_.options.slidesToShow / 2) : 0;

        if (_.options.swipeToSlide === true) {
            _.$slideTrack.find('.slick-slide').each(function(index, slide) {
                if (slide.offsetLeft - centerOffset + ($(slide).outerWidth() / 2) > (_.swipeLeft * -1)) {
                    swipedSlide = slide;
                    return false;
                }
            });

            slidesTraversed = Math.abs($(swipedSlide).attr('data-slick-index') - _.currentSlide) || 1;

            return slidesTraversed;

        } else {
            return _.options.slidesToScroll;
        }

    };

    Slick.prototype.goTo = Slick.prototype.slickGoTo = function(slide, dontAnimate) {

        var _ = this;

        _.changeSlide({
            data: {
                message: 'index',
                index: parseInt(slide)
            }
        }, dontAnimate);

    };

    Slick.prototype.init = function(creation) {

        var _ = this;

        if (!$(_.$slider).hasClass('slick-initialized')) {

            $(_.$slider).addClass('slick-initialized');

            _.buildRows();
            _.buildOut();
            _.setProps();
            _.startLoad();
            _.loadSlider();
            _.initializeEvents();
            _.updateArrows();
            _.updateDots();
            _.checkResponsive(true);
            _.focusHandler();

        }

        if (creation) {
            _.$slider.trigger('init', [_]);
        }

        if (_.options.accessibility === true) {
            _.initADA();
        }

        if ( _.options.autoplay ) {

            _.paused = false;
            _.autoPlay();

        }

    };

    Slick.prototype.initADA = function() {
        var _ = this;
        _.$slides.add(_.$slideTrack.find('.slick-cloned')).attr({
            'aria-hidden': 'true',
            'tabindex': '-1'
        }).find('a, input, button, select').attr({
            'tabindex': '-1'
        });

        _.$slideTrack.attr('role', 'listbox');

        _.$slides.not(_.$slideTrack.find('.slick-cloned')).each(function(i) {
            $(this).attr({
                'role': 'option',
                'aria-describedby': 'slick-slide' + _.instanceUid + i + ''
            });
        });

        if (_.$dots !== null) {
            _.$dots.attr('role', 'tablist').find('li').each(function(i) {
                $(this).attr({
                    'role': 'presentation',
                    'aria-selected': 'false',
                    'aria-controls': 'navigation' + _.instanceUid + i + '',
                    'id': 'slick-slide' + _.instanceUid + i + ''
                });
            })
            .first().attr('aria-selected', 'true').end()
            .find('button').attr('role', 'button').end()
            .closest('div').attr('role', 'toolbar');
        }
        _.activateADA();

    };

    Slick.prototype.initArrowEvents = function() {

        var _ = this;

        if (_.options.arrows === true && _.slideCount > _.options.slidesToShow) {
            _.$prevArrow
            .off('click.slick')
            .on('click.slick', {
                message: 'previous'
            }, _.changeSlide);
            _.$nextArrow
            .off('click.slick')
            .on('click.slick', {
                message: 'next'
            }, _.changeSlide);
        }

    };

    Slick.prototype.initDotEvents = function() {

        var _ = this;

        if (_.options.dots === true && _.slideCount > _.options.slidesToShow) {
            $('li', _.$dots).on('click.slick', {
                message: 'index'
            }, _.changeSlide);
        }

        if ( _.options.dots === true && _.options.pauseOnDotsHover === true ) {

            $('li', _.$dots)
            .on('mouseenter.slick', $.proxy(_.interrupt, _, true))
            .on('mouseleave.slick', $.proxy(_.interrupt, _, false));

        }

    };

    Slick.prototype.initSlideEvents = function() {

        var _ = this;

        if ( _.options.pauseOnHover ) {

            _.$list.on('mouseenter.slick', $.proxy(_.interrupt, _, true));
            _.$list.on('mouseleave.slick', $.proxy(_.interrupt, _, false));

        }

    };

    Slick.prototype.initializeEvents = function() {

        var _ = this;

        _.initArrowEvents();

        _.initDotEvents();
        _.initSlideEvents();

        _.$list.on('touchstart.slick mousedown.slick', {
            action: 'start'
        }, _.swipeHandler);
        _.$list.on('touchmove.slick mousemove.slick', {
            action: 'move'
        }, _.swipeHandler);
        _.$list.on('touchend.slick mouseup.slick', {
            action: 'end'
        }, _.swipeHandler);
        _.$list.on('touchcancel.slick mouseleave.slick', {
            action: 'end'
        }, _.swipeHandler);

        _.$list.on('click.slick', _.clickHandler);

        $(document).on(_.visibilityChange, $.proxy(_.visibility, _));

        if (_.options.accessibility === true) {
            _.$list.on('keydown.slick', _.keyHandler);
        }

        if (_.options.focusOnSelect === true) {
            $(_.$slideTrack).children().on('click.slick', _.selectHandler);
        }

        $(window).on('orientationchange.slick.slick-' + _.instanceUid, $.proxy(_.orientationChange, _));

        $(window).on('resize.slick.slick-' + _.instanceUid, $.proxy(_.resize, _));

        $('[draggable!=true]', _.$slideTrack).on('dragstart', _.preventDefault);

        $(window).on('load.slick.slick-' + _.instanceUid, _.setPosition);
        $(document).on('ready.slick.slick-' + _.instanceUid, _.setPosition);

    };

    Slick.prototype.initUI = function() {

        var _ = this;

        if (_.options.arrows === true && _.slideCount > _.options.slidesToShow) {

            _.$prevArrow.show();
            _.$nextArrow.show();

        }

        if (_.options.dots === true && _.slideCount > _.options.slidesToShow) {

            _.$dots.show();

        }

    };

    Slick.prototype.keyHandler = function(event) {

        var _ = this;
         //Dont slide if the cursor is inside the form fields and arrow keys are pressed
         if(!event.target.tagName.match('TEXTAREA|INPUT|SELECT')) {
            if (event.keyCode === 37 && _.options.accessibility === true) {
                _.changeSlide({
                    data: {
                        message: _.options.rtl === true ? 'next' :  'previous'
                    }
                });
            } else if (event.keyCode === 39 && _.options.accessibility === true) {
                _.changeSlide({
                    data: {
                        message: _.options.rtl === true ? 'previous' : 'next'
                    }
                });
            }
        }

    };

    Slick.prototype.lazyLoad = function() {

        var _ = this,
        loadRange, cloneRange, rangeStart, rangeEnd;

        function loadImages(imagesScope) {

            $('img[data-lazy]', imagesScope).each(function() {

                var image = $(this),
                imageSource = $(this).attr('data-lazy'),
                imageToLoad = document.createElement('img');

                imageToLoad.onload = function() {

                    image
                    .animate({ opacity: 0 }, 100, function() {
                        image
                        .attr('src', imageSource)
                        .animate({ opacity: 1 }, 200, function() {
                            image
                            .removeAttr('data-lazy')
                            .removeClass('slick-loading');
                        });
                        _.$slider.trigger('lazyLoaded', [_, image, imageSource]);
                    });

                };

                imageToLoad.onerror = function() {

                    image
                    .removeAttr( 'data-lazy' )
                    .removeClass( 'slick-loading' )
                    .addClass( 'slick-lazyload-error' );

                    _.$slider.trigger('lazyLoadError', [ _, image, imageSource ]);

                };

                imageToLoad.src = imageSource;

            });

        }

        if (_.options.centerMode === true) {
            if (_.options.infinite === true) {
                rangeStart = _.currentSlide + (_.options.slidesToShow / 2 + 1);
                rangeEnd = rangeStart + _.options.slidesToShow + 2;
            } else {
                rangeStart = Math.max(0, _.currentSlide - (_.options.slidesToShow / 2 + 1));
                rangeEnd = 2 + (_.options.slidesToShow / 2 + 1) + _.currentSlide;
            }
        } else {
            rangeStart = _.options.infinite ? _.options.slidesToShow + _.currentSlide : _.currentSlide;
            rangeEnd = Math.ceil(rangeStart + _.options.slidesToShow);
            if (_.options.fade === true) {
                if (rangeStart > 0) rangeStart--;
                if (rangeEnd <= _.slideCount) rangeEnd++;
            }
        }

        loadRange = _.$slider.find('.slick-slide').slice(rangeStart, rangeEnd);
        loadImages(loadRange);

        if (_.slideCount <= _.options.slidesToShow) {
            cloneRange = _.$slider.find('.slick-slide');
            loadImages(cloneRange);
        } else
        if (_.currentSlide >= _.slideCount - _.options.slidesToShow) {
            cloneRange = _.$slider.find('.slick-cloned').slice(0, _.options.slidesToShow);
            loadImages(cloneRange);
        } else if (_.currentSlide === 0) {
            cloneRange = _.$slider.find('.slick-cloned').slice(_.options.slidesToShow * -1);
            loadImages(cloneRange);
        }

    };

    Slick.prototype.loadSlider = function() {

        var _ = this;

        _.setPosition();

        _.$slideTrack.css({
            opacity: 1
        });

        _.$slider.removeClass('slick-loading');

        _.initUI();

        if (_.options.lazyLoad === 'progressive') {
            _.progressiveLazyLoad();
        }

    };

    Slick.prototype.next = Slick.prototype.slickNext = function() {

        var _ = this;

        _.changeSlide({
            data: {
                message: 'next'
            }
        });

    };

    Slick.prototype.orientationChange = function() {

        var _ = this;

        _.checkResponsive();
        _.setPosition();

    };

    Slick.prototype.pause = Slick.prototype.slickPause = function() {

        var _ = this;

        _.autoPlayClear();
        _.paused = true;

    };

    Slick.prototype.play = Slick.prototype.slickPlay = function() {

        var _ = this;

        _.autoPlay();
        _.options.autoplay = true;
        _.paused = false;
        _.focussed = false;
        _.interrupted = false;

    };

    Slick.prototype.postSlide = function(index) {

        var _ = this;

        if( !_.unslicked ) {

            _.$slider.trigger('afterChange', [_, index]);

            _.animating = false;

            _.setPosition();

            _.swipeLeft = null;

            if ( _.options.autoplay ) {
                _.autoPlay();
            }

            if (_.options.accessibility === true) {
                _.initADA();
            }

        }

    };

    Slick.prototype.prev = Slick.prototype.slickPrev = function() {

        var _ = this;

        _.changeSlide({
            data: {
                message: 'previous'
            }
        });

    };

    Slick.prototype.preventDefault = function(event) {

        event.preventDefault();

    };

    Slick.prototype.progressiveLazyLoad = function( tryCount ) {

        tryCount = tryCount || 1;

        var _ = this,
        $imgsToLoad = $( 'img[data-lazy]', _.$slider ),
        image,
        imageSource,
        imageToLoad;

        if ( $imgsToLoad.length ) {

            image = $imgsToLoad.first();
            imageSource = image.attr('data-lazy');
            imageToLoad = document.createElement('img');

            imageToLoad.onload = function() {

                image
                .attr( 'src', imageSource )
                .removeAttr('data-lazy')
                .removeClass('slick-loading');

                if ( _.options.adaptiveHeight === true ) {
                    _.setPosition();
                }

                _.$slider.trigger('lazyLoaded', [ _, image, imageSource ]);
                _.progressiveLazyLoad();

            };

            imageToLoad.onerror = function() {

                if ( tryCount < 3 ) {

                    /**
                     * try to load the image 3 times,
                     * leave a slight delay so we don't get
                     * servers blocking the request.
                     */
                     setTimeout( function() {
                        _.progressiveLazyLoad( tryCount + 1 );
                    }, 500 );

                 } else {

                    image
                    .removeAttr( 'data-lazy' )
                    .removeClass( 'slick-loading' )
                    .addClass( 'slick-lazyload-error' );

                    _.$slider.trigger('lazyLoadError', [ _, image, imageSource ]);

                    _.progressiveLazyLoad();

                }

            };

            imageToLoad.src = imageSource;

        } else {

            _.$slider.trigger('allImagesLoaded', [ _ ]);

        }

    };

    Slick.prototype.refresh = function( initializing ) {

        var _ = this, currentSlide, lastVisibleIndex;

        lastVisibleIndex = _.slideCount - _.options.slidesToShow;

        // in non-infinite sliders, we don't want to go past the
        // last visible index.
        if( !_.options.infinite && ( _.currentSlide > lastVisibleIndex )) {
            _.currentSlide = lastVisibleIndex;
        }

        // if less slides than to show, go to start.
        if ( _.slideCount <= _.options.slidesToShow ) {
            _.currentSlide = 0;

        }

        currentSlide = _.currentSlide;

        _.destroy(true);

        $.extend(_, _.initials, { currentSlide: currentSlide });

        _.init();

        if( !initializing ) {

            _.changeSlide({
                data: {
                    message: 'index',
                    index: currentSlide
                }
            }, false);

        }

    };

    Slick.prototype.registerBreakpoints = function() {

        var _ = this, breakpoint, currentBreakpoint, l,
        responsiveSettings = _.options.responsive || null;

        if ( $.type(responsiveSettings) === 'array' && responsiveSettings.length ) {

            _.respondTo = _.options.respondTo || 'window';

            for ( breakpoint in responsiveSettings ) {

                l = _.breakpoints.length-1;
                currentBreakpoint = responsiveSettings[breakpoint].breakpoint;

                if (responsiveSettings.hasOwnProperty(breakpoint)) {

                    // loop through the breakpoints and cut out any existing
                    // ones with the same breakpoint number, we don't want dupes.
                    while( l >= 0 ) {
                        if( _.breakpoints[l] && _.breakpoints[l] === currentBreakpoint ) {
                            _.breakpoints.splice(l,1);
                        }
                        l--;
                    }

                    _.breakpoints.push(currentBreakpoint);
                    _.breakpointSettings[currentBreakpoint] = responsiveSettings[breakpoint].settings;

                }

            }

            _.breakpoints.sort(function(a, b) {
                return ( _.options.mobileFirst ) ? a-b : b-a;
            });

        }

    };

    Slick.prototype.reinit = function() {

        var _ = this;

        _.$slides =
        _.$slideTrack
        .children(_.options.slide)
        .addClass('slick-slide');

        _.slideCount = _.$slides.length;

        if (_.currentSlide >= _.slideCount && _.currentSlide !== 0) {
            _.currentSlide = _.currentSlide - _.options.slidesToScroll;
        }

        if (_.slideCount <= _.options.slidesToShow) {
            _.currentSlide = 0;
        }

        _.registerBreakpoints();

        _.setProps();
        _.setupInfinite();
        _.buildArrows();
        _.updateArrows();
        _.initArrowEvents();
        _.buildDots();
        _.updateDots();
        _.initDotEvents();
        _.cleanUpSlideEvents();
        _.initSlideEvents();

        _.checkResponsive(false, true);

        if (_.options.focusOnSelect === true) {
            $(_.$slideTrack).children().on('click.slick', _.selectHandler);
        }

        _.setSlideClasses(typeof _.currentSlide === 'number' ? _.currentSlide : 0);

        _.setPosition();
        _.focusHandler();

        _.paused = !_.options.autoplay;
        _.autoPlay();

        _.$slider.trigger('reInit', [_]);

    };

    Slick.prototype.resize = function() {

        var _ = this;

        if ($(window).width() !== _.windowWidth) {
            clearTimeout(_.windowDelay);
            _.windowDelay = window.setTimeout(function() {
                _.windowWidth = $(window).width();
                _.checkResponsive();
                if( !_.unslicked ) { _.setPosition(); }
            }, 50);
        }
    };

    Slick.prototype.removeSlide = Slick.prototype.slickRemove = function(index, removeBefore, removeAll) {

        var _ = this;

        if (typeof(index) === 'boolean') {
            removeBefore = index;
            index = removeBefore === true ? 0 : _.slideCount - 1;
        } else {
            index = removeBefore === true ? --index : index;
        }

        if (_.slideCount < 1 || index < 0 || index > _.slideCount - 1) {
            return false;
        }

        _.unload();

        if (removeAll === true) {
            _.$slideTrack.children().remove();
        } else {
            _.$slideTrack.children(this.options.slide).eq(index).remove();
        }

        _.$slides = _.$slideTrack.children(this.options.slide);

        _.$slideTrack.children(this.options.slide).detach();

        _.$slideTrack.append(_.$slides);

        _.$slidesCache = _.$slides;

        _.reinit();

    };

    Slick.prototype.setCSS = function(position) {

        var _ = this,
        positionProps = {},
        x, y;

        if (_.options.rtl === true) {
            position = -position;
        }
        x = _.positionProp == 'left' ? Math.ceil(position) + 'px' : '0px';
        y = _.positionProp == 'top' ? Math.ceil(position) + 'px' : '0px';

        positionProps[_.positionProp] = position;

        if (_.transformsEnabled === false) {
            _.$slideTrack.css(positionProps);
        } else {
            positionProps = {};
            if (_.cssTransitions === false) {
                positionProps[_.animType] = 'translate(' + x + ', ' + y + ')';
                _.$slideTrack.css(positionProps);
            } else {
                positionProps[_.animType] = 'translate3d(' + x + ', ' + y + ', 0px)';
                //here
                _.$slideTrack.css(positionProps);
            }
        }

    };

    Slick.prototype.setDimensions = function() {

        var _ = this;

        if (_.options.vertical === false) {
            if (_.options.centerMode === true) {
                _.$list.css({
                    padding: ('0px ' + _.options.centerPadding)
                });
            }
        } else {
            _.$list.height(_.$slides.first().outerHeight(true) * _.options.slidesToShow);
            if (_.options.centerMode === true) {
                _.$list.css({
                    padding: (_.options.centerPadding + ' 0px')
                });
            }
        }

        _.listWidth = _.$list.width();
        _.listHeight = _.$list.height();


        if (_.options.vertical === false && _.options.variableWidth === false) {
            _.slideWidth = Math.ceil(_.listWidth / _.options.slidesToShow);
            _.$slideTrack.width(Math.ceil((_.slideWidth * _.$slideTrack.children('.slick-slide').length)));

        } else if (_.options.variableWidth === true) {
            _.$slideTrack.width(5000 * _.slideCount);
        } else {
            _.slideWidth = Math.ceil(_.listWidth);
            _.$slideTrack.height(Math.ceil((_.$slides.first().outerHeight(true) * _.$slideTrack.children('.slick-slide').length)));
        }

        var offset = _.$slides.first().outerWidth(true) - _.$slides.first().width();
        if (_.options.variableWidth === false) _.$slideTrack.children('.slick-slide').width(_.slideWidth - offset);

    };

    Slick.prototype.setFade = function() {

        var _ = this,
        targetLeft;

        _.$slides.each(function(index, element) {
            targetLeft = (_.slideWidth * index) * -1;
            if (_.options.rtl === true) {
                $(element).css({
                    position: 'relative',
                    right: targetLeft,
                    top: 0,
                    zIndex: _.options.zIndex - 2,
                    opacity: 0
                });
            } else {
                $(element).css({
                    position: 'relative',
                    left: targetLeft,
                    top: 0,
                    zIndex: _.options.zIndex - 2,
                    opacity: 0
                });
            }
        });

        _.$slides.eq(_.currentSlide).css({
            zIndex: _.options.zIndex - 1,
            opacity: 1
        });

    };

    Slick.prototype.setHeight = function() {

        var _ = this;

        if (_.options.slidesToShow === 1 && _.options.adaptiveHeight === true && _.options.vertical === false) {
            var targetHeight = _.$slides.eq(_.currentSlide).outerHeight(true);
            _.$list.css('height', targetHeight);
        }

    };

    Slick.prototype.setOption =
    Slick.prototype.slickSetOption = function() {

        /**
         * accepts arguments in format of:
         *
         *  - for changing a single option's value:
         *     .slick("setOption", option, value, refresh )
         *
         *  - for changing a set of responsive options:
         *     .slick("setOption", 'responsive', [{}, ...], refresh )
         *
         *  - for updating multiple values at once (not responsive)
         *     .slick("setOption", { 'option': value, ... }, refresh )
         */

         var _ = this, l, item, option, value, refresh = false, type;

         if( $.type( arguments[0] ) === 'object' ) {

            option =  arguments[0];
            refresh = arguments[1];
            type = 'multiple';

        } else if ( $.type( arguments[0] ) === 'string' ) {

            option =  arguments[0];
            value = arguments[1];
            refresh = arguments[2];

            if ( arguments[0] === 'responsive' && $.type( arguments[1] ) === 'array' ) {

                type = 'responsive';

            } else if ( typeof arguments[1] !== 'undefined' ) {

                type = 'single';

            }

        }

        if ( type === 'single' ) {

            _.options[option] = value;


        } else if ( type === 'multiple' ) {

            $.each( option , function( opt, val ) {

                _.options[opt] = val;

            });


        } else if ( type === 'responsive' ) {

            for ( item in value ) {

                if( $.type( _.options.responsive ) !== 'array' ) {

                    _.options.responsive = [ value[item] ];

                } else {

                    l = _.options.responsive.length-1;

                    // loop through the responsive object and splice out duplicates.
                    while( l >= 0 ) {

                        if( _.options.responsive[l].breakpoint === value[item].breakpoint ) {

                            _.options.responsive.splice(l,1);

                        }

                        l--;

                    }

                    _.options.responsive.push( value[item] );

                }

            }

        }

        if ( refresh ) {

            _.unload();
            _.reinit();

        }

    };

    Slick.prototype.setPosition = function() {

        var _ = this;

        _.setDimensions();

        _.setHeight();

        if (_.options.fade === false) {
            _.setCSS(_.getLeft(_.currentSlide));
        } else {
            _.setFade();
        }

        _.$slider.trigger('setPosition', [_]);

    };

    Slick.prototype.setProps = function() {

        var _ = this,
        bodyStyle = document.body.style;

        _.positionProp = _.options.vertical === true ? 'top' : 'left';

        if (_.positionProp === 'top') {
            _.$slider.addClass('slick-vertical');
        } else {
            _.$slider.removeClass('slick-vertical');
        }

        if (bodyStyle.WebkitTransition !== undefined ||
            bodyStyle.MozTransition !== undefined ||
            bodyStyle.msTransition !== undefined) {
            if (_.options.useCSS === true) {
                _.cssTransitions = true;
            }
        }

        if ( _.options.fade ) {
            if ( typeof _.options.zIndex === 'number' ) {
                if( _.options.zIndex < 3 ) {
                    _.options.zIndex = 3;
                }
            } else {
                _.options.zIndex = _.defaults.zIndex;
            }
        }

        if (bodyStyle.OTransform !== undefined) {
            _.animType = 'OTransform';
            _.transformType = '-o-transform';
            _.transitionType = 'OTransition';
            if (bodyStyle.perspectiveProperty === undefined && bodyStyle.webkitPerspective === undefined) _.animType = false;
        }
        if (bodyStyle.MozTransform !== undefined) {
            _.animType = 'MozTransform';
            _.transformType = '-moz-transform';
            _.transitionType = 'MozTransition';
            if (bodyStyle.perspectiveProperty === undefined && bodyStyle.MozPerspective === undefined) _.animType = false;
        }
        if (bodyStyle.webkitTransform !== undefined) {
            _.animType = 'webkitTransform';
            _.transformType = '-webkit-transform';
            _.transitionType = 'webkitTransition';
            if (bodyStyle.perspectiveProperty === undefined && bodyStyle.webkitPerspective === undefined) _.animType = false;
        }
        if (bodyStyle.msTransform !== undefined) {
            _.animType = 'msTransform';
            _.transformType = '-ms-transform';
            _.transitionType = 'msTransition';
            if (bodyStyle.msTransform === undefined) _.animType = false;
        }
        if (bodyStyle.transform !== undefined && _.animType !== false) {
            _.animType = 'transform';
            _.transformType = 'transform';
            _.transitionType = 'transition';
        }
        _.transformsEnabled = _.options.useTransform && (_.animType !== null && _.animType !== false);
    };


    Slick.prototype.setSlideClasses = function(index) {

        var _ = this,
        centerOffset, allSlides, indexOffset, remainder;

        allSlides = _.$slider
        .find('.slick-slide')
        .removeClass('slick-active slick-center slick-current')
        .attr('aria-hidden', 'true');

        _.$slides
        .eq(index)
        .addClass('slick-current');

        if (_.options.centerMode === true) {

            centerOffset = Math.floor(_.options.slidesToShow / 2);

            if (_.options.infinite === true) {

                if (index >= centerOffset && index <= (_.slideCount - 1) - centerOffset) {

                    _.$slides
                    .slice(index - centerOffset, index + centerOffset + 1)
                    .addClass('slick-active')
                    .attr('aria-hidden', 'false');

                } else {

                    indexOffset = _.options.slidesToShow + index;
                    allSlides
                    .slice(indexOffset - centerOffset + 1, indexOffset + centerOffset + 2)
                    .addClass('slick-active')
                    .attr('aria-hidden', 'false');

                }

                if (index === 0) {

                    allSlides
                    .eq(allSlides.length - 1 - _.options.slidesToShow)
                    .addClass('slick-center');

                } else if (index === _.slideCount - 1) {

                    allSlides
                    .eq(_.options.slidesToShow)
                    .addClass('slick-center');

                }

            }

            _.$slides
            .eq(index)
            .addClass('slick-center');

        } else {

            if (index >= 0 && index <= (_.slideCount - _.options.slidesToShow)) {

                _.$slides
                .slice(index, index + _.options.slidesToShow)
                .addClass('slick-active')
                .attr('aria-hidden', 'false');

            } else if (allSlides.length <= _.options.slidesToShow) {

                allSlides
                .addClass('slick-active')
                .attr('aria-hidden', 'false');

            } else {

                remainder = _.slideCount % _.options.slidesToShow;
                indexOffset = _.options.infinite === true ? _.options.slidesToShow + index : index;

                if (_.options.slidesToShow == _.options.slidesToScroll && (_.slideCount - index) < _.options.slidesToShow) {

                    allSlides
                    .slice(indexOffset - (_.options.slidesToShow - remainder), indexOffset + remainder)
                    .addClass('slick-active')
                    .attr('aria-hidden', 'false');

                } else {

                    allSlides
                    .slice(indexOffset, indexOffset + _.options.slidesToShow)
                    .addClass('slick-active')
                    .attr('aria-hidden', 'false');

                }

            }

        }

        if (_.options.lazyLoad === 'ondemand') {
            _.lazyLoad();
        }

    };

    Slick.prototype.setupInfinite = function() {

        var _ = this,
        i, slideIndex, infiniteCount;

        if (_.options.fade === true) {
            _.options.centerMode = false;
        }

        if (_.options.infinite === true && _.options.fade === false) {

            slideIndex = null;

            if (_.slideCount > _.options.slidesToShow) {

                if (_.options.centerMode === true) {
                    infiniteCount = _.options.slidesToShow + 1;
                } else {
                    infiniteCount = _.options.slidesToShow;
                }

                for (i = _.slideCount; i > (_.slideCount -
                    infiniteCount); i -= 1) {
                    slideIndex = i - 1;
                $(_.$slides[slideIndex]).clone(true).attr('id', '')
                .attr('data-slick-index', slideIndex - _.slideCount)
                .prependTo(_.$slideTrack).addClass('slick-cloned');
            }
            for (i = 0; i < infiniteCount; i += 1) {
                slideIndex = i;
                $(_.$slides[slideIndex]).clone(true).attr('id', '')
                .attr('data-slick-index', slideIndex + _.slideCount)
                .appendTo(_.$slideTrack).addClass('slick-cloned');
            }
            _.$slideTrack.find('.slick-cloned').find('[id]').each(function() {
                $(this).attr('id', '');
            });

        }

    }

};

Slick.prototype.interrupt = function( toggle ) {

    var _ = this;

    if( !toggle ) {
        _.autoPlay();
    }
    _.interrupted = toggle;

};

Slick.prototype.selectHandler = function(event) {

    var _ = this;

    var targetElement =
    $(event.target).is('.slick-slide') ?
    $(event.target) :
    $(event.target).parents('.slick-slide');

    var index = parseInt(targetElement.attr('data-slick-index'));

    if (!index) index = 0;

    if (_.slideCount <= _.options.slidesToShow) {

        _.setSlideClasses(index);
        _.asNavFor(index);
        return;

    }

    _.slideHandler(index);

};

Slick.prototype.slideHandler = function(index, sync, dontAnimate) {

    var targetSlide, animSlide, oldSlide, slideLeft, targetLeft = null,
    _ = this, navTarget;

    sync = sync || false;

    if (_.animating === true && _.options.waitForAnimate === true) {
        return;
    }

    if (_.options.fade === true && _.currentSlide === index) {
        return;
    }

    if (_.slideCount <= _.options.slidesToShow) {
        return;
    }

    if (sync === false) {
        _.asNavFor(index);
    }

    targetSlide = index;
    targetLeft = _.getLeft(targetSlide);
    slideLeft = _.getLeft(_.currentSlide);

    _.currentLeft = _.swipeLeft === null ? slideLeft : _.swipeLeft;

    if (_.options.infinite === false && _.options.centerMode === false && (index < 0 || index > _.getDotCount() * _.options.slidesToScroll)) {
        if (_.options.fade === false) {
            targetSlide = _.currentSlide;
            if (dontAnimate !== true) {
                _.animateSlide(slideLeft, function() {
                    _.postSlide(targetSlide);
                });
            } else {
                _.postSlide(targetSlide);
            }
        }
        return;
    } else if (_.options.infinite === false && _.options.centerMode === true && (index < 0 || index > (_.slideCount - _.options.slidesToScroll))) {
        if (_.options.fade === false) {
            targetSlide = _.currentSlide;
            if (dontAnimate !== true) {
                _.animateSlide(slideLeft, function() {
                    _.postSlide(targetSlide);
                });
            } else {
                _.postSlide(targetSlide);
            }
        }
        return;
    }

    if ( _.options.autoplay ) {
        clearInterval(_.autoPlayTimer);
    }

    if (targetSlide < 0) {
        if (_.slideCount % _.options.slidesToScroll !== 0) {
            animSlide = _.slideCount - (_.slideCount % _.options.slidesToScroll);
        } else {
            animSlide = _.slideCount + targetSlide;
        }
    } else if (targetSlide >= _.slideCount) {
        if (_.slideCount % _.options.slidesToScroll !== 0) {
            animSlide = 0;
        } else {
            animSlide = targetSlide - _.slideCount;
        }
    } else {
        animSlide = targetSlide;
    }

    _.animating = true;

    _.$slider.trigger('beforeChange', [_, _.currentSlide, animSlide]);

    oldSlide = _.currentSlide;
    _.currentSlide = animSlide;

    _.setSlideClasses(_.currentSlide);

    if ( _.options.asNavFor ) {

        navTarget = _.getNavTarget();
        navTarget = navTarget.slick('getSlick');

        if ( navTarget.slideCount <= navTarget.options.slidesToShow ) {
            navTarget.setSlideClasses(_.currentSlide);
        }

    }

    _.updateDots();
    _.updateArrows();

    if (_.options.fade === true) {
        if (dontAnimate !== true) {

            _.fadeSlideOut(oldSlide);

            _.fadeSlide(animSlide, function() {
                _.postSlide(animSlide);
            });

        } else {
            _.postSlide(animSlide);
        }
        _.animateHeight();
        return;
    }

    if (dontAnimate !== true) {
        _.animateSlide(targetLeft, function() {
            _.postSlide(animSlide);
        });
    } else {
        _.postSlide(animSlide);
    }

};

Slick.prototype.startLoad = function() {

    var _ = this;

    if (_.options.arrows === true && _.slideCount > _.options.slidesToShow) {

        _.$prevArrow.hide();
        _.$nextArrow.hide();

    }

    if (_.options.dots === true && _.slideCount > _.options.slidesToShow) {

        _.$dots.hide();

    }

    _.$slider.addClass('slick-loading');

};

Slick.prototype.swipeDirection = function() {

    var xDist, yDist, r, swipeAngle, _ = this;

    xDist = _.touchObject.startX - _.touchObject.curX;
    yDist = _.touchObject.startY - _.touchObject.curY;
    r = Math.atan2(yDist, xDist);

    swipeAngle = Math.round(r * 180 / Math.PI);
    if (swipeAngle < 0) {
        swipeAngle = 360 - Math.abs(swipeAngle);
    }

    if ((swipeAngle <= 45) && (swipeAngle >= 0)) {
        return (_.options.rtl === false ? 'left' : 'right');
    }
    if ((swipeAngle <= 360) && (swipeAngle >= 315)) {
        return (_.options.rtl === false ? 'left' : 'right');
    }
    if ((swipeAngle >= 135) && (swipeAngle <= 225)) {
        return (_.options.rtl === false ? 'right' : 'left');
    }
    if (_.options.verticalSwiping === true) {
        if ((swipeAngle >= 35) && (swipeAngle <= 135)) {
            return 'down';
        } else {
            return 'up';
        }
    }

    return 'vertical';

};

Slick.prototype.swipeEnd = function(event) {

    var _ = this,
    slideCount,
    direction;

    _.dragging = false;
    _.interrupted = false;
    _.shouldClick = ( _.touchObject.swipeLength > 10 ) ? false : true;

    if ( _.touchObject.curX === undefined ) {
        return false;
    }

    if ( _.touchObject.edgeHit === true ) {
        _.$slider.trigger('edge', [_, _.swipeDirection() ]);
    }

    if ( _.touchObject.swipeLength >= _.touchObject.minSwipe ) {

        direction = _.swipeDirection();

        switch ( direction ) {

            case 'left':
            case 'down':

            slideCount =
            _.options.swipeToSlide ?
            _.checkNavigable( _.currentSlide + _.getSlideCount() ) :
            _.currentSlide + _.getSlideCount();

            _.currentDirection = 0;

            break;

            case 'right':
            case 'up':

            slideCount =
            _.options.swipeToSlide ?
            _.checkNavigable( _.currentSlide - _.getSlideCount() ) :
            _.currentSlide - _.getSlideCount();

            _.currentDirection = 1;

            break;

            default:


        }

        if( direction != 'vertical' ) {

            _.slideHandler( slideCount );
            _.touchObject = {};
            _.$slider.trigger('swipe', [_, direction ]);

        }

    } else {

        if ( _.touchObject.startX !== _.touchObject.curX ) {

            _.slideHandler( _.currentSlide );
            _.touchObject = {};

        }

    }

};

Slick.prototype.swipeHandler = function(event) {

    var _ = this;

    if ((_.options.swipe === false) || ('ontouchend' in document && _.options.swipe === false)) {
        return;
    } else if (_.options.draggable === false && event.type.indexOf('mouse') !== -1) {
        return;
    }

    _.touchObject.fingerCount = event.originalEvent && event.originalEvent.touches !== undefined ?
    event.originalEvent.touches.length : 1;

    _.touchObject.minSwipe = _.listWidth / _.options
    .touchThreshold;

    if (_.options.verticalSwiping === true) {
        _.touchObject.minSwipe = _.listHeight / _.options
        .touchThreshold;
    }

    switch (event.data.action) {

        case 'start':
        _.swipeStart(event);
        break;

        case 'move':
        _.swipeMove(event);
        break;

        case 'end':
        _.swipeEnd(event);
        break;

    }

};

Slick.prototype.swipeMove = function(event) {

    var _ = this,
    edgeWasHit = false,
    curLeft, swipeDirection, swipeLength, positionOffset, touches;

    touches = event.originalEvent !== undefined ? event.originalEvent.touches : null;

    if (!_.dragging || touches && touches.length !== 1) {
        return false;
    }

    curLeft = _.getLeft(_.currentSlide);

    _.touchObject.curX = touches !== undefined ? touches[0].pageX : event.clientX;
    _.touchObject.curY = touches !== undefined ? touches[0].pageY : event.clientY;

    _.touchObject.swipeLength = Math.round(Math.sqrt(
        Math.pow(_.touchObject.curX - _.touchObject.startX, 2)));

    if (_.options.verticalSwiping === true) {
        _.touchObject.swipeLength = Math.round(Math.sqrt(
            Math.pow(_.touchObject.curY - _.touchObject.startY, 2)));
    }

    swipeDirection = _.swipeDirection();

    if (swipeDirection === 'vertical') {
        return;
    }

    if (event.originalEvent !== undefined && _.touchObject.swipeLength > 4) {
        event.preventDefault();
    }

    positionOffset = (_.options.rtl === false ? 1 : -1) * (_.touchObject.curX > _.touchObject.startX ? 1 : -1);
    if (_.options.verticalSwiping === true) {
        positionOffset = _.touchObject.curY > _.touchObject.startY ? 1 : -1;
    }


    swipeLength = _.touchObject.swipeLength;

    _.touchObject.edgeHit = false;

    if (_.options.infinite === false) {
        if ((_.currentSlide === 0 && swipeDirection === 'right') || (_.currentSlide >= _.getDotCount() && swipeDirection === 'left')) {
            swipeLength = _.touchObject.swipeLength * _.options.edgeFriction;
            _.touchObject.edgeHit = true;
        }
    }

    if (_.options.vertical === false) {
        _.swipeLeft = curLeft + swipeLength * positionOffset;
    } else {
        _.swipeLeft = curLeft + (swipeLength * (_.$list.height() / _.listWidth)) * positionOffset;
    }
    if (_.options.verticalSwiping === true) {
        _.swipeLeft = curLeft + swipeLength * positionOffset;
    }

    if (_.options.fade === true || _.options.touchMove === false) {
        return false;
    }

    if (_.animating === true) {
        _.swipeLeft = null;
        return false;
    }

    _.setCSS(_.swipeLeft);

};

Slick.prototype.swipeStart = function(event) {

    var _ = this,
    touches;

    _.interrupted = true;

    if (_.touchObject.fingerCount !== 1 || _.slideCount <= _.options.slidesToShow) {
        _.touchObject = {};
        return false;
    }

    if (event.originalEvent !== undefined && event.originalEvent.touches !== undefined) {
        touches = event.originalEvent.touches[0];
    }

    _.touchObject.startX = _.touchObject.curX = touches !== undefined ? touches.pageX : event.clientX;
    _.touchObject.startY = _.touchObject.curY = touches !== undefined ? touches.pageY : event.clientY;

    _.dragging = true;

};

Slick.prototype.unfilterSlides = Slick.prototype.slickUnfilter = function() {

    var _ = this;

    if (_.$slidesCache !== null) {

        _.unload();

        _.$slideTrack.children(this.options.slide).detach();

        _.$slidesCache.appendTo(_.$slideTrack);

        _.reinit();

    }

};

Slick.prototype.unload = function() {

    var _ = this;

    $('.slick-cloned', _.$slider).remove();

    if (_.$dots) {
        _.$dots.remove();
    }

    if (_.$prevArrow && _.htmlExpr.test(_.options.prevArrow)) {
        _.$prevArrow.remove();
    }

    if (_.$nextArrow && _.htmlExpr.test(_.options.nextArrow)) {
        _.$nextArrow.remove();
    }

    _.$slides
    .removeClass('slick-slide slick-active slick-visible slick-current')
    .attr('aria-hidden', 'true')
    .css('width', '');

};

Slick.prototype.unslick = function(fromBreakpoint) {

    var _ = this;
    _.$slider.trigger('unslick', [_, fromBreakpoint]);
    _.destroy();

};

Slick.prototype.updateArrows = function() {

    var _ = this,
    centerOffset;

    centerOffset = Math.floor(_.options.slidesToShow / 2);

    if ( _.options.arrows === true &&
        _.slideCount > _.options.slidesToShow &&
        !_.options.infinite ) {

        _.$prevArrow.removeClass('slick-disabled').attr('aria-disabled', 'false');
    _.$nextArrow.removeClass('slick-disabled').attr('aria-disabled', 'false');

    if (_.currentSlide === 0) {

        _.$prevArrow.addClass('slick-disabled').attr('aria-disabled', 'true');
        _.$nextArrow.removeClass('slick-disabled').attr('aria-disabled', 'false');

    } else if (_.currentSlide >= _.slideCount - _.options.slidesToShow && _.options.centerMode === false) {

        _.$nextArrow.addClass('slick-disabled').attr('aria-disabled', 'true');
        _.$prevArrow.removeClass('slick-disabled').attr('aria-disabled', 'false');

    } else if (_.currentSlide >= _.slideCount - 1 && _.options.centerMode === true) {

        _.$nextArrow.addClass('slick-disabled').attr('aria-disabled', 'true');
        _.$prevArrow.removeClass('slick-disabled').attr('aria-disabled', 'false');

    }

}

};

Slick.prototype.updateDots = function() {

    var _ = this;

    if (_.$dots !== null) {

        _.$dots
        .find('li')
        .removeClass('slick-active')
        .attr('aria-hidden', 'true');

        _.$dots
        .find('li')
        .eq(Math.floor(_.currentSlide / _.options.slidesToScroll))
        .addClass('slick-active')
        .attr('aria-hidden', 'false');

    }

};

Slick.prototype.visibility = function() {

    var _ = this;

    if ( _.options.autoplay ) {

        if ( document[_.hidden] ) {

            _.interrupted = true;

        } else {

            _.interrupted = false;

        }

    }

};

$.fn.slick = function() {
    var _ = this,
    opt = arguments[0],
    args = Array.prototype.slice.call(arguments, 1),
    l = _.length,
    i,
    ret;
    for (i = 0; i < l; i++) {
        if (typeof opt == 'object' || typeof opt == 'undefined')
            _[i].slick = new Slick(_[i], opt);
        else
            ret = _[i].slick[opt].apply(_[i].slick, args);
        if (typeof ret != 'undefined') return ret;
    }
    return _;
};

}));