/*
     _ _      _       _
 ___| (_) ___| | __  (_)___
/ __| | |/ __| |/ /  | / __|
\__ \ | | (__|   < _ | \__ \
|___/_|_|\___|_|\_(_)/ |___/
                   |__/

 version: 1.8.0
  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');
                //有箭头按钮加样式
                $(".slick-slider").addclass('have_arrow');

                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'
                    });
                    //无箭头按钮移除样式
                    $(".slick-slider").removeclass('have_arrow');

            }

        }

    };

    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)';
                _.$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 slick-slide-previous slick-slide-previous-last slick-slide-previous-last-end slick-slide-next slick-slide-next-last slick-slide-next-last-end')
            .attr('aria-hidden', 'true');

        
        _.$slides
            .eq(index)
            .addclass('slick-current')
            
            
       allslides = _.$slider
            .find('.slick-current')
            .next().addclass("slick-slide-next")
            .next().addclass("slick-slide-next-last")
            .next().addclass("slick-slide-next-last-end");
            
       allslides = _.$slider
            .find('.slick-current')
            .prev().addclass("slick-slide-previous")
            .prev().addclass("slick-slide-previous-last")
            .prev().addclass("slick-slide-previous-last-end");
            

        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 _;
    };

}));