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125                unslicked: false
126            };
127
128            $.extend(_, _.initials);
129
130            _.activeBreakpoint = null;
131            _.animType = null;
132            _.animProp = null;
133            _.breakpoints = [];
134            _.breakpointSettings = [];
135            _.cssTransitions = false;
136            _.focussed = false;
137            _.interrupted = false;
138            _.hidden = 'hidden';
139            _.paused = true;
140            _.positionProp = null;
141            _.respondTo = null;
142            _.rowCount = 1;
143            _.shouldClick = true;
144            _.$slider = $(element);
145            _.$slidesCache = null;
146            _.transformType = null;
147            _.transitionType = null;
148            _.visibilityChange = 'visibilitychange';
149            _.windowWidth = 0;
150            _.windowTimer = null;
151
152            dataSettings = $(element).data('slick') || {};
153
154            _.options = $.extend({}, _.defaults, settings, dataSettings);
155
156            _.currentSlide = _.options.initialSlide;
157
158            _.originalSettings = _.options;
159
160            if (typeof document.mozHidden !== 'undefined') {
161                _.hidden = 'mozHidden';
162                _.visibilityChange = 'mozvisibilitychange';
163            } else if (typeof document.webkitHidden !== 'undefined') {
164                _.hidden = 'webkitHidden';
165                _.visibilityChange = 'webkitvisibilitychange';
166            }
167
168            _.autoPlay = $.proxy(_.autoPlay, _);
169            _.autoPlayClear = $.proxy(_.autoPlayClear, _);
170            _.autoPlayIterator = $.proxy(_.autoPlayIterator, _);
171            _.changeSlide = $.proxy(_.changeSlide, _);
172            _.clickHandler = $.proxy(_.clickHandler, _);
173            _.selectHandler = $.proxy(_.selectHandler, _);
174            _.setPosition = $.proxy(_.setPosition, _);
175            _.swipeHandler = $.proxy(_.swipeHandler, _);
176            _.dragHandler = $.proxy(_.dragHandler, _);
177            _.keyHandler = $.proxy(_.keyHandler, _);
178
179            _.instanceUid = instanceUid++;
180
181            // A simple way to check for HTML strings
182            // Strict HTML recognition (must start with <)
183            // Extracted from jQuery v1.11 source
184            _.htmlExpr = /^(?:\s*(<[\w\W]+>)[^>]*)$/;
185
186
187            _.registerBreakpoints();
188            _.init(true);
189
190        }
191
192        return Slick;
193
194    }());
195
196    Slick.prototype.activateADA = function() {
197        var _ = this;
198
199        _.$slideTrack.find('.slick-active').attr({
200            'aria-hidden': 'false'
201        }).find('a, input, button, select').attr({
202            'tabindex': '0'
203        });
204
205    };
206
207    Slick.prototype.addSlide = Slick.prototype.slickAdd = function(markup, index, addBefore) {
208
209        var _ = this;
210
211        if (typeof(index) === 'boolean') {
212            addBefore = index;
213            index = null;
214        } else if (index < 0 || (index >= _.slideCount)) {
215            return false;
216        }
217
218        _.unload();
219
220        if (typeof(index) === 'number') {
221            if (index === 0 && _.$slides.length === 0) {
222                $(markup).appendTo(_.$slideTrack);
223            } else if (addBefore) {
224                $(markup).insertBefore(_.$slides.eq(index));
225            } else {
226                $(markup).insertAfter(_.$slides.eq(index));
227            }
228        } else {
229            if (addBefore === true) {
230                $(markup).prependTo(_.$slideTrack);
231            } else {
232                $(markup).appendTo(_.$slideTrack);
233            }
234        }
235
236        _.$slides = _.$slideTrack.children(this.options.slide);
237
238        _.$slideTrack.children(this.options.slide).detach();
239
240        _.$slideTrack.append(_.$slides);
241
242        _.$slides.each(function(index, element) {
243            $(element).attr('data-slick-index', index);
244        });
245
246        _.$slidesCache = _.$slides;
247
248        _.reinit();
249
250    };
251
252    Slick.prototype.animateHeight = function() {
253        var _ = this;
254        if (_.options.slidesToShow === 1 && _.options.adaptiveHeight === true && _.options.vertical === false) {
255            var targetHeight = _.$slides.eq(_.currentSlide).outerHeight(true);
256            _.$list.animate({
257                height: targetHeight
258            }, _.options.speed);
259        }
260    };
261
262    Slick.prototype.animateSlide = function(targetLeft, callback) {
263
264        var animProps = {},
265            _ = this;
266
267        _.animateHeight();
268
269        if (_.options.rtl === true && _.options.vertical === false) {
270            targetLeft = -targetLeft;
271        }
272        if (_.transformsEnabled === false) {
273            if (_.options.vertical === false) {
274                _.$slideTrack.animate({
275                    left: targetLeft
276                }, _.options.speed, _.options.easing, callback);
277            } else {
278                _.$slideTrack.animate({
279                    top: targetLeft
280                }, _.options.speed, _.options.easing, callback);
281            }
282
283        } else {
284
285            if (_.cssTransitions === false) {
286                if (_.options.rtl === true) {
287                    _.currentLeft = -(_.currentLeft);
288                }
289                $({
290                    animStart: _.currentLeft
291                }).animate({
292                    animStart: targetLeft
293                }, {
294                    duration: _.options.speed,
295                    easing: _.options.easing,
296                    step: function(now) {
297                        now = Math.ceil(now);
298                        if (_.options.vertical === false) {
299                            animProps[_.animType] = 'translate(' +
300                                now + 'px, 0px)';
301                            _.$slideTrack.css(animProps);
302                        } else {
303                            animProps[_.animType] = 'translate(0px,' +
304                                now + 'px)';
305                            _.$slideTrack.css(animProps);
306                        }
307                    },
308                    complete: function() {
309                        if (callback) {
310                            callback.call();
311                        }
312                    }
313                });
314
315            } else {
316
317                _.applyTransition();
318                targetLeft = Math.ceil(targetLeft);
319
320                if (_.options.vertical === false) {
321                    animProps[_.animType] = 'translate3d(' + targetLeft + 'px, 0px, 0px)';
322                } else {
323                    animProps[_.animType] = 'translate3d(0px,' + targetLeft + 'px, 0px)';
324                }
325                _.$slideTrack.css(animProps);
326
327                if (callback) {
328                    setTimeout(function() {
329
330                        _.disableTransition();
331
332                        callback.call();
333                    }, _.options.speed);
334                }
335
336            }
337
338        }
339
340    };
341
342    Slick.prototype.getNavTarget = function() {
343
344        var _ = this,
345            asNavFor = _.options.asNavFor;
346
347        if ( asNavFor && asNavFor !== null ) {
348            asNavFor = $(asNavFor).not(_.$slider);
349        }
350
351        return asNavFor;
352
353    };
354
355    Slick.prototype.asNavFor = function(index) {
356
357        var _ = this,
358            asNavFor = _.getNavTarget();
359
360        if ( asNavFor !== null && typeof asNavFor === 'object' ) {
361            asNavFor.each(function() {
362                var target = $(this).slick('getSlick');
363                if(!target.unslicked) {
364                    target.slideHandler(index, true);
365                }
366            });
367        }
368
369    };
370
371    Slick.prototype.applyTransition = function(slide) {
372
373        var _ = this,
374            transition = {};
375
376        if (_.options.fade === false) {
377            transition[_.transitionType] = _.transformType + ' ' + _.options.speed + 'ms ' + _.options.cssEase;
378        } else {
379            transition[_.transitionType] = 'opacity ' + _.options.speed + 'ms ' + _.options.cssEase;
380        }
381
382        if (_.options.fade === false) {
383            _.$slideTrack.css(transition);
384        } else {
385            _.$slides.eq(slide).css(transition);
386        }
387
388    };
389
390    Slick.prototype.autoPlay = function() {
391
392        var _ = this;
393
394        _.autoPlayClear();
395
396        if ( _.slideCount > _.options.slidesToShow ) {
397            _.autoPlayTimer = setInterval( _.autoPlayIterator, _.options.autoplaySpeed );
398        }
399
400    };
401
402    Slick.prototype.autoPlayClear = function() {
403
404        var _ = this;
405
406        if (_.autoPlayTimer) {
407            clearInterval(_.autoPlayTimer);
408        }
409
410    };
411
412    Slick.prototype.autoPlayIterator = function() {
413
414        var _ = this,
415            slideTo = _.currentSlide + _.options.slidesToScroll;
416
417        if ( !_.paused && !_.interrupted && !_.focussed ) {
418
419            if ( _.options.infinite === false ) {
420
421                if ( _.direction === 1 && ( _.currentSlide + 1 ) === ( _.slideCount - 1 )) {
422                    _.direction = 0;
423                }
424
425                else if ( _.direction === 0 ) {
426
427                    slideTo = _.currentSlide - _.options.slidesToScroll;
428
429                    if ( _.currentSlide - 1 === 0 ) {
430                        _.direction = 1;
431                    }
432
433                }
434
435            }
436
437            _.slideHandler( slideTo );
438
439        }
440
441    };
442
443    Slick.prototype.buildArrows = function() {
444
445        var _ = this;
446
447        if (_.options.arrows === true ) {
448
449            _.$prevArrow = $(_.options.prevArrow).addClass('slick-arrow');
450            _.$nextArrow = $(_.options.nextArrow).addClass('slick-arrow');
451
452            if( _.slideCount > _.options.slidesToShow ) {
453
454                _.$prevArrow.removeClass('slick-hidden').removeAttr('aria-hidden tabindex');
455                _.$nextArrow.removeClass('slick-hidden').removeAttr('aria-hidden tabindex');
456
457                if (_.htmlExpr.test(_.options.prevArrow)) {
458                    _.$prevArrow.prependTo(_.options.appendArrows);
459                }
460
461                if (_.htmlExpr.test(_.options.nextArrow)) {
462                    _.$nextArrow.appendTo(_.options.appendArrows);
463                }
464
465                if (_.options.infinite !== true) {
466                    _.$prevArrow
467                        .addClass('slick-disabled')
468                        .attr('aria-disabled', 'true');
469                }
470
471            } else {
472
473                _.$prevArrow.add( _.$nextArrow )
474
475                    .addClass('slick-hidden')
476                    .attr({
477                        'aria-disabled': 'true',
478                        'tabindex': '-1'
479                    });
480
481            }
482
483        }
484
485    };
486
487    Slick.prototype.buildDots = function() {
488
489        var _ = this,
490            i, dot;
491
492        if (_.options.dots === true && _.slideCount > _.options.slidesToShow) {
493
494            _.$slider.addClass('slick-dotted');
495
496            dot = $('<ul />').addClass(_.options.dotsClass);
497
498            for (i = 0; i <= _.getDotCount(); i += 1) {
499                dot.append($('<li />').append(_.options.customPaging.call(this, _, i)));
500            }
501
502            _.$dots = dot.appendTo(_.options.appendDots);
503
504            _.$dots.find('li').first().addClass('slick-active');
505
506        }
507
508    };
509
510    Slick.prototype.buildOut = function() {
511
512        var _ = this;
513
514        _.$slides =
515            _.$slider
516                .children( _.options.slide + ':not(.slick-cloned)')
517                .addClass('slick-slide');
518
519        _.slideCount = _.$slides.length;
520
521        _.$slides.each(function(index, element) {
522            $(element)
523                .attr('data-slick-index', index)
524                .data('originalStyling', $(element).attr('style') || '');
525        });
526
527        _.$slider.addClass('slick-slider');
528
529        _.$slideTrack = (_.slideCount === 0) ?
530            $('<div class="slick-track"/>').appendTo(_.$slider) :
531            _.$slides.wrapAll('<div class="slick-track"/>').parent();
532
533        _.$list = _.$slideTrack.wrap(
534            '<div class="slick-list"/>').parent();
535        _.$slideTrack.css('opacity', 0);
536
537        if (_.options.centerMode === true || _.options.swipeToSlide === true) {
538            _.options.slidesToScroll = 1;
539        }
540
541        $('img[data-lazy]', _.$slider).not('[src]').addClass('slick-loading');
542
543        _.setupInfinite();
544
545        _.buildArrows();
546
547        _.buildDots();
548
549        _.updateDots();
550
551
552        _.setSlideClasses(typeof _.currentSlide === 'number' ? _.currentSlide : 0);
553
554        if (_.options.draggable === true) {
555            _.$list.addClass('draggable');
556        }
557
558    };
559
560    Slick.prototype.buildRows = function() {
561
562        var _ = this, a, b, c, newSlides, numOfSlides, originalSlides,slidesPerSection;
563
564        newSlides = document.createDocumentFragment();
565        originalSlides = _.$slider.children();
566
567        if(_.options.rows > 0) {
568
569            slidesPerSection = _.options.slidesPerRow * _.options.rows;
570            numOfSlides = Math.ceil(
571                originalSlides.length / slidesPerSection
572            );
573
574            for(a = 0; a < numOfSlides; a++){
575                var slide = document.createElement('div');
576                for(b = 0; b < _.options.rows; b++) {
577                    var row = document.createElement('div');
578                    for(c = 0; c < _.options.slidesPerRow; c++) {
579                        var target = (a * slidesPerSection + ((b * _.options.slidesPerRow) + c));
580                        if (originalSlides.get(target)) {
581                            row.appendChild(originalSlides.get(target));
582                        }
583                    }
584                    slide.appendChild(row);
585                }
586                newSlides.appendChild(slide);
587            }
588
589            _.$slider.empty().append(newSlides);
590            _.$slider.children().children().children()
591                .css({
592                    'width':(100 / _.options.slidesPerRow) + '%',
593                    'display': 'inline-block'
594                });
595
596        }
597
598    };
599
600    Slick.prototype.checkResponsive = function(initial, forceUpdate) {
601
602        var _ = this,
603            breakpoint, targetBreakpoint, respondToWidth, triggerBreakpoint = false;
604        var sliderWidth = _.$slider.width();
605        var windowWidth = window.innerWidth || $(window).width();
606
607        if (_.respondTo === 'window') {
608            respondToWidth = windowWidth;
609        } else if (_.respondTo === 'slider') {
610            respondToWidth = sliderWidth;
611        } else if (_.respondTo === 'min') {
612            respondToWidth = Math.min(windowWidth, sliderWidth);
613        }
614
615        if ( _.options.responsive &&
616            _.options.responsive.length &&
617            _.options.responsive !== null) {
618
619            targetBreakpoint = null;
620
621            for (breakpoint in _.breakpoints) {
622                if (_.breakpoints.hasOwnProperty(breakpoint)) {
623                    if (_.originalSettings.mobileFirst === false) {
624                        if (respondToWidth < _.breakpoints[breakpoint]) {
625                            targetBreakpoint = _.breakpoints[breakpoint];
626                        }
627                    } else {
628                        if (respondToWidth > _.breakpoints[breakpoint]) {
629                            targetBreakpoint = _.breakpoints[breakpoint];
630                        }
631                    }
632                }
633            }
634
635            if (targetBreakpoint !== null) {
636                if (_.activeBreakpoint !== null) {
637                    if (targetBreakpoint !== _.activeBreakpoint || forceUpdate) {
638                        _.activeBreakpoint =
639                            targetBreakpoint;
640                        if (_.breakpointSettings[targetBreakpoint] === 'unslick') {
641                            _.unslick(targetBreakpoint);
642                        } else {
643                            _.options = $.extend({}, _.originalSettings,
644                                _.breakpointSettings[
645                                    targetBreakpoint]);
646                            if (initial === true) {
647                                _.currentSlide = _.options.initialSlide;
648                            }
649                            _.refresh(initial);
650                        }
651                        triggerBreakpoint = targetBreakpoint;
652                    }
653                } else {
654                    _.activeBreakpoint = targetBreakpoint;
655                    if (_.breakpointSettings[targetBreakpoint] === 'unslick') {
656                        _.unslick(targetBreakpoint);
657                    } else {
658                        _.options = $.extend({}, _.originalSettings,
659                            _.breakpointSettings[
660                                targetBreakpoint]);
661                        if (initial === true) {
662                            _.currentSlide = _.options.initialSlide;
663                        }
664                        _.refresh(initial);
665                    }
666                    triggerBreakpoint = targetBreakpoint;
667                }
668            } else {
669                if (_.activeBreakpoint !== null) {
670                    _.activeBreakpoint = null;
671                    _.options = _.originalSettings;
672                    if (initial === true) {
673                        _.currentSlide = _.options.initialSlide;
674                    }
675                    _.refresh(initial);
676                    triggerBreakpoint = targetBreakpoint;
677                }
678            }
679
680            // only trigger breakpoints during an actual break. not on initialize.
681            if( !initial && triggerBreakpoint !== false ) {
682                _.$slider.trigger('breakpoint', [_, triggerBreakpoint]);
683            }
684        }
685
686    };
687
688    Slick.prototype.changeSlide = function(event, dontAnimate) {
689
690        var _ = this,
691            $target = $(event.currentTarget),
692            indexOffset, slideOffset, unevenOffset;
693
694        // If target is a link, prevent default action.
695        if($target.is('a')) {
696            event.preventDefault();
697        }
698
699        // If target is not the <li> element (ie: a child), find the <li>.
700        if(!$target.is('li')) {
701            $target = $target.closest('li');
702        }
703
704        unevenOffset = (_.slideCount % _.options.slidesToScroll !== 0);
705        indexOffset = unevenOffset ? 0 : (_.slideCount - _.currentSlide) % _.options.slidesToScroll;
706
707        switch (event.data.message) {
708
709            case 'previous':
710                slideOffset = indexOffset === 0 ? _.options.slidesToScroll : _.options.slidesToShow - indexOffset;
711                if (_.slideCount > _.options.slidesToShow) {
712                    _.slideHandler(_.currentSlide - slideOffset, false, dontAnimate);
713                }
714                break;
715
716            case 'next':
717                slideOffset = indexOffset === 0 ? _.options.slidesToScroll : indexOffset;
718                if (_.slideCount > _.options.slidesToShow) {
719                    _.slideHandler(_.currentSlide + slideOffset, false, dontAnimate);
720                }
721                break;
722
723            case 'index':
724                var index = event.data.index === 0 ? 0 :
725                    event.data.index || $target.index() * _.options.slidesToScroll;
726
727                _.slideHandler(_.checkNavigable(index), false, dontAnimate);
728                $target.children().trigger('focus');
729                break;
730
731            default:
732                return;
733        }
734
735    };
736
737    Slick.prototype.checkNavigable = function(index) {
738
739        var _ = this,
740            navigables, prevNavigable;
741
742        navigables = _.getNavigableIndexes();
743        prevNavigable = 0;
744        if (index > navigables[navigables.length - 1]) {
745            index = navigables[navigables.length - 1];
746        } else {
747            for (var n in navigables) {
748                if (index < navigables[n]) {
749                    index = prevNavigable;
750                    break;
751                }
752                prevNavigable = navigables[n];
753            }
754        }
755
756        return index;
757    };
758
759    Slick.prototype.cleanUpEvents = function() {
760
761        var _ = this;
762
763        if (_.options.dots && _.$dots !== null) {
764
765            $('li', _.$dots)
766                .off('click.slick', _.changeSlide)
767                .off('mouseenter.slick', $.proxy(_.interrupt, _, true))
768                .off('mouseleave.slick', $.proxy(_.interrupt, _, false));
769
770            if (_.options.accessibility === true) {
771                _.$dots.off('keydown.slick', _.keyHandler);
772            }
773        }
774
775        _.$slider.off('focus.slick blur.slick');
776
777        if (_.options.arrows === true && _.slideCount > _.options.slidesToShow) {
778            _.$prevArrow && _.$prevArrow.off('click.slick', _.changeSlide);
779            _.$nextArrow && _.$nextArrow.off('click.slick', _.changeSlide);
780
781            if (_.options.accessibility === true) {
782                _.$prevArrow && _.$prevArrow.off('keydown.slick', _.keyHandler);
783                _.$nextArrow && _.$nextArrow.off('keydown.slick', _.keyHandler);
784            }
785        }
786
787        _.$list.off('touchstart.slick mousedown.slick', _.swipeHandler);
788        _.$list.off('touchmove.slick mousemove.slick', _.swipeHandler);
789        _.$list.off('touchend.slick mouseup.slick', _.swipeHandler);
790        _.$list.off('touchcancel.slick mouseleave.slick', _.swipeHandler);
791
792        _.$list.off('click.slick', _.clickHandler);
793
794        $(document).off(_.visibilityChange, _.visibility);
795
796        _.cleanUpSlideEvents();
797
798        if (_.options.accessibility === true) {
799            _.$list.off('keydown.slick', _.keyHandler);
800        }
801
802        if (_.options.focusOnSelect === true) {
803            $(_.$slideTrack).children().off('click.slick', _.selectHandler);
804        }
805
806        $(window).off('orientationchange.slick.slick-' + _.instanceUid, _.orientationChange);
807
808        $(window).off('resize.slick.slick-' + _.instanceUid, _.resize);
809
810        $('[draggable!=true]', _.$slideTrack).off('dragstart', _.preventDefault);
811
812        $(window).off('load.slick.slick-' + _.instanceUid, _.setPosition);
813
814    };
815
816    Slick.prototype.cleanUpSlideEvents = function() {
817
818        var _ = this;
819
820        _.$list.off('mouseenter.slick', $.proxy(_.interrupt, _, true));
821        _.$list.off('mouseleave.slick', $.proxy(_.interrupt, _, false));
822
823    };
824
825    Slick.prototype.cleanUpRows = function() {
826
827        var _ = this, originalSlides;
828
829        if(_.options.rows > 0) {
830            originalSlides = _.$slides.children().children();
831            originalSlides.removeAttr('style');
832            _.$slider.empty().append(originalSlides);
833        }
834
835    };
836
837    Slick.prototype.clickHandler = function(event) {
838
839        var _ = this;
840
841        if (_.shouldClick === false) {
842            event.stopImmediatePropagation();
843            event.stopPropagation();
844            event.preventDefault();
845        }
846
847    };
848
849    Slick.prototype.destroy = function(refresh) {
850
851        var _ = this;
852
853        _.autoPlayClear();
854
855        _.touchObject = {};
856
857        _.cleanUpEvents();
858
859        $('.slick-cloned', _.$slider).detach();
860
861        if (_.$dots) {
862            _.$dots.remove();
863        }
864
865        if ( _.$prevArrow && _.$prevArrow.length ) {
866
867            _.$prevArrow
868                .removeClass('slick-disabled slick-arrow slick-hidden')
869                .removeAttr('aria-hidden aria-disabled tabindex')
870                .css('display','');
871
872            if ( _.htmlExpr.test( _.options.prevArrow )) {
873                _.$prevArrow.remove();
874            }
875        }
876
877        if ( _.$nextArrow && _.$nextArrow.length ) {
878
879            _.$nextArrow
880                .removeClass('slick-disabled slick-arrow slick-hidden')
881                .removeAttr('aria-hidden aria-disabled tabindex')
882                .css('display','');
883
884            if ( _.htmlExpr.test( _.options.nextArrow )) {
885                _.$nextArrow.remove();
886            }
887        }
888
889
890        if (_.$slides) {
891
892            _.$slides
893                .removeClass('slick-slide slick-active slick-center slick-visible slick-current')
894                .removeAttr('aria-hidden')
895                .removeAttr('data-slick-index')
896                .each(function(){
897                    $(this).attr('style', $(this).data('originalStyling'));
898                });
899
900            _.$slideTrack.children(this.options.slide).detach();
901
902            _.$slideTrack.detach();
903
904            _.$list.detach();
905
906            _.$slider.append(_.$slides);
907        }
908
909        _.cleanUpRows();
910
911        _.$slider.removeClass('slick-slider');
912        _.$slider.removeClass('slick-initialized');
913        _.$slider.removeClass('slick-dotted');
914
915        _.unslicked = true;
916
917        if(!refresh) {
918            _.$slider.trigger('destroy', [_]);
919        }
920
921    };
922
923    Slick.prototype.disableTransition = function(slide) {
924
925        var _ = this,
926            transition = {};
927
928        transition[_.transitionType] = '';
929
930        if (_.options.fade === false) {
931            _.$slideTrack.css(transition);
932        } else {
933            _.$slides.eq(slide).css(transition);
934        }
935
936    };
937
938    Slick.prototype.fadeSlide = function(slideIndex, callback) {
939
940        var _ = this;
941
942        if (_.cssTransitions === false) {
943
944            _.$slides.eq(slideIndex).css({
945                zIndex: _.options.zIndex
946            });
947
948            _.$slides.eq(slideIndex).animate({
949                opacity: 1
950            }, _.options.speed, _.options.easing, callback);
951
952        } else {
953
954            _.applyTransition(slideIndex);
955
956            _.$slides.eq(slideIndex).css({
957                opacity: 1,
958                zIndex: _.options.zIndex
959            });
960
961            if (callback) {
962                setTimeout(function() {
963
964                    _.disableTransition(slideIndex);
965
966                    callback.call();
967                }, _.options.speed);
968            }
969
970        }
971
972    };
973
974    Slick.prototype.fadeSlideOut = function(slideIndex) {
975
976        var _ = this;
977
978        if (_.cssTransitions === false) {
979
980            _.$slides.eq(slideIndex).animate({
981                opacity: 0,
982                zIndex: _.options.zIndex - 2
983            }, _.options.speed, _.options.easing);
984
985        } else {
986
987            _.applyTransition(slideIndex);
988
989            _.$slides.eq(slideIndex).css({
990                opacity: 0,
991                zIndex: _.options.zIndex - 2
992            });
993
994        }
995
996    };
997
998    Slick.prototype.filterSlides = Slick.prototype.slickFilter = function(filter) {
999
1000        var _ = this;
1001
1002        if (filter !== null) {
1003
1004            _.$slidesCache = _.$slides;
1005
1006            _.unload();
1007
1008            _.$slideTrack.children(this.options.slide).detach();
1009
1010            _.$slidesCache.filter(filter).appendTo(_.$slideTrack);
1011
1012            _.reinit();
1013
1014        }
1015
1016    };
1017
1018    Slick.prototype.focusHandler = function() {
1019
1020        var _ = this;
1021
1022        _.$slider
1023            .off('focus.slick blur.slick')
1024            .on('focus.slick blur.slick', '*', function(event) {
1025
1026            event.stopImmediatePropagation();
1027            var $sf = $(this);
1028
1029            setTimeout(function() {
1030
1031                if( _.options.pauseOnFocus ) {
1032                    _.focussed = $sf.is(':focus');
1033                    _.autoPlay();
1034                }
1035
1036            }, 0);
1037
1038        });
1039    };
1040
1041    Slick.prototype.getCurrent = Slick.prototype.slickCurrentSlide = function() {
1042
1043        var _ = this;
1044        return _.currentSlide;
1045
1046    };
1047
1048    Slick.prototype.getDotCount = function() {
1049
1050        var _ = this;
1051
1052        var breakPoint = 0;
1053        var counter = 0;
1054        var pagerQty = 0;
1055
1056        if (_.options.infinite === true) {
1057            if (_.slideCount <= _.options.slidesToShow) {
1058                 ++pagerQty;
1059            } else {
1060                while (breakPoint < _.slideCount) {
1061                    ++pagerQty;
1062                    breakPoint = counter + _.options.slidesToScroll;
1063                    counter += _.options.slidesToScroll <= _.options.slidesToShow ? _.options.slidesToScroll : _.options.slidesToShow;
1064                }
1065            }
1066        } else if (_.options.centerMode === true) {
1067            pagerQty = _.slideCount;
1068        } else if(!_.options.asNavFor) {
1069            pagerQty = 1 + Math.ceil((_.slideCount - _.options.slidesToShow) / _.options.slidesToScroll);
1070        }else {
1071            while (breakPoint < _.slideCount) {
1072                ++pagerQty;
1073                breakPoint = counter + _.options.slidesToScroll;
1074                counter += _.options.slidesToScroll <= _.options.slidesToShow ? _.options.slidesToScroll : _.options.slidesToShow;
1075            }
1076        }
1077
1078        return pagerQty - 1;
1079
1080    };
1081
1082    Slick.prototype.getLeft = function(slideIndex) {
1083
1084        var _ = this,
1085            targetLeft,
1086            verticalHeight,
1087            verticalOffset = 0,
1088            targetSlide,
1089            coef;
1090
1091        _.slideOffset = 0;
1092        verticalHeight = _.$slides.first().outerHeight(true);
1093
1094        if (_.options.infinite === true) {
1095            if (_.slideCount > _.options.slidesToShow) {
1096                _.slideOffset = (_.slideWidth * _.options.slidesToShow) * -1;
1097                coef = -1
1098
1099                if (_.options.vertical === true && _.options.centerMode === true) {
1100                    if (_.options.slidesToShow === 2) {
1101                        coef = -1.5;
1102                    } else if (_.options.slidesToShow === 1) {
1103                        coef = -2
1104                    }
1105                }
1106                verticalOffset = (verticalHeight * _.options.slidesToShow) * coef;
1107            }
1108            if (_.slideCount % _.options.slidesToScroll !== 0) {
1109                if (slideIndex + _.options.slidesToScroll > _.slideCount && _.slideCount > _.options.slidesToShow) {
1110                    if (slideIndex > _.slideCount) {
1111                        _.slideOffset = ((_.options.slidesToShow - (slideIndex - _.slideCount)) * _.slideWidth) * -1;
1112                        verticalOffset = ((_.options.slidesToShow - (slideIndex - _.slideCount)) * verticalHeight) * -1;
1113                    } else {
1114                        _.slideOffset = ((_.slideCount % _.options.slidesToScroll) * _.slideWidth) * -1;
1115                        verticalOffset = ((_.slideCount % _.options.slidesToScroll) * verticalHeight) * -1;
1116                    }
1117                }
1118            }
1119        } else {
1120            if (slideIndex + _.options.slidesToShow > _.slideCount) {
1121                _.slideOffset = ((slideIndex + _.options.slidesToShow) - _.slideCount) * _.slideWidth;
1122                verticalOffset = ((slideIndex + _.options.slidesToShow) - _.slideCount) * verticalHeight;
1123            }
1124        }
1125
1126        if (_.slideCount <= _.options.slidesToShow) {
1127            _.slideOffset = 0;
1128            verticalOffset = 0;
1129        }
1130
1131        if (_.options.centerMode === true && _.slideCount <= _.options.slidesToShow) {
1132            _.slideOffset = ((_.slideWidth * Math.floor(_.options.slidesToShow)) / 2) - ((_.slideWidth * _.slideCount) / 2);
1133        } else if (_.options.centerMode === true && _.options.infinite === true) {
1134            _.slideOffset += _.slideWidth * Math.floor(_.options.slidesToShow / 2) - _.slideWidth;
1135        } else if (_.options.centerMode === true) {
1136            _.slideOffset = 0;
1137            _.slideOffset += _.slideWidth * Math.floor(_.options.slidesToShow / 2);
1138        }
1139
1140        if (_.options.vertical === false) {
1141            targetLeft = ((slideIndex * _.slideWidth) * -1) + _.slideOffset;
1142        } else {
1143            targetLeft = ((slideIndex * verticalHeight) * -1) + verticalOffset;
1144        }
1145
1146        if (_.options.variableWidth === true) {
1147
1148            if (_.slideCount <= _.options.slidesToShow || _.options.infinite === false) {
1149                targetSlide = _.$slideTrack.children('.slick-slide').eq(slideIndex);
1150            } else {
1151                targetSlide = _.$slideTrack.children('.slick-slide').eq(slideIndex + _.options.slidesToShow);
1152            }
1153
1154            if (_.options.rtl === true) {
1155                if (targetSlide[0]) {
1156                    targetLeft = (_.$slideTrack.width() - targetSlide[0].offsetLeft - targetSlide.width()) * -1;
1157                } else {
1158                    targetLeft =  0;
1159                }
1160            } else {
1161                targetLeft = targetSlide[0] ? targetSlide[0].offsetLeft * -1 : 0;
1162            }
1163
1164            if (_.options.centerMode === true) {
1165                if (_.slideCount <= _.options.slidesToShow || _.options.infinite === false) {
1166                    targetSlide = _.$slideTrack.children('.slick-slide').eq(slideIndex);
1167                } else {
1168                    targetSlide = _.$slideTrack.children('.slick-slide').eq(slideIndex + _.options.slidesToShow + 1);
1169                }
1170
1171                if (_.options.rtl === true) {
1172                    if (targetSlide[0]) {
1173                        targetLeft = (_.$slideTrack.width() - targetSlide[0].offsetLeft - targetSlide.width()) * -1;
1174                    } else {
1175                        targetLeft =  0;
1176                    }
1177                } else {
1178                    targetLeft = targetSlide[0] ? targetSlide[0].offsetLeft * -1 : 0;
1179                }
1180
1181                targetLeft += (_.$list.width() - targetSlide.outerWidth()) / 2;
1182            }
1183        }
1184
1185        return targetLeft;
1186
1187    };
1188
1189    Slick.prototype.getOption = Slick.prototype.slickGetOption = function(option) {
1190
1191        var _ = this;
1192
1193        return _.options[option];
1194
1195    };
1196
1197    Slick.prototype.getNavigableIndexes = function() {
1198
1199        var _ = this,
1200            breakPoint = 0,
1201            counter = 0,
1202            indexes = [],
1203            max;
1204
1205        if (_.options.infinite === false) {
1206            max = _.slideCount;
1207        } else {
1208            breakPoint = _.options.slidesToScroll * -1;
1209            counter = _.options.slidesToScroll * -1;
1210            max = _.slideCount * 2;
1211        }
1212
1213        while (breakPoint < max) {
1214            indexes.push(breakPoint);
1215            breakPoint = counter + _.options.slidesToScroll;
1216            counter += _.options.slidesToScroll <= _.options.slidesToShow ? _.options.slidesToScroll : _.options.slidesToShow;
1217        }
1218
1219        return indexes;
1220
1221    };
1222
1223    Slick.prototype.getSlick = function() {
1224
1225        return this;
1226
1227    };
1228
1229    Slick.prototype.getSlideCount = function() {
1230
1231        var _ = this,
1232            slidesTraversed, swipedSlide, centerOffset;
1233
1234        centerOffset = _.options.centerMode === true ? _.slideWidth * Math.floor(_.options.slidesToShow / 2) : 0;
1235
1236        if (_.options.swipeToSlide === true) {
1237            _.$slideTrack.find('.slick-slide').each(function(index, slide) {
1238                if (slide.offsetLeft - centerOffset + ($(slide).outerWidth() / 2) > (_.swipeLeft * -1)) {
1239                    swipedSlide = slide;
1240                    return false;
1241                }
1242            });
1243
1244            slidesTraversed = Math.abs($(swipedSlide).attr('data-slick-index') - _.currentSlide) || 1;
1245
1246            return slidesTraversed;
1247
1248        } else {
1249            return _.options.slidesToScroll;
1250        }
1251
1252    };
1253
1254    Slick.prototype.goTo = Slick.prototype.slickGoTo = function(slide, dontAnimate) {
1255
1256        var _ = this;
1257
1258        _.changeSlide({
1259            data: {
1260                message: 'index',
1261                index: parseInt(slide)
1262            }
1263        }, dontAnimate);
1264
1265    };
1266
1267    Slick.prototype.init = function(creation) {
1268
1269        var _ = this;
1270
1271        if (!$(_.$slider).hasClass('slick-initialized')) {
1272
1273            $(_.$slider).addClass('slick-initialized');
1274
1275            _.buildRows();
1276            _.buildOut();
1277            _.setProps();
1278            _.startLoad();
1279            _.loadSlider();
1280            _.initializeEvents();
1281            _.updateArrows();
1282            _.updateDots();
1283            _.checkResponsive(true);
1284            _.focusHandler();
1285
1286        }
1287
1288        if (creation) {
1289            _.$slider.trigger('init', [_]);
1290        }
1291
1292        if (_.options.accessibility === true) {
1293            _.initADA();
1294        }
1295
1296        if ( _.options.autoplay ) {
1297
1298            _.paused = false;
1299            _.autoPlay();
1300
1301        }
1302
1303    };
1304
1305    Slick.prototype.initADA = function() {
1306        var _ = this,
1307                numDotGroups = Math.ceil(_.slideCount / _.options.slidesToShow),
1308                tabControlIndexes = _.getNavigableIndexes().filter(function(val) {
1309                    return (val >= 0) && (val < _.slideCount);
1310                });
1311
1312        _.$slides.add(_.$slideTrack.find('.slick-cloned')).attr({
1313            'aria-hidden': 'true',
1314            'tabindex': '-1'
1315        }).find('a, input, button, select').attr({
1316            'tabindex': '-1'
1317        });
1318
1319        if (_.$dots !== null) {
1320            _.$slides.not(_.$slideTrack.find('.slick-cloned')).each(function(i) {
1321                var slideControlIndex = tabControlIndexes.indexOf(i);
1322
1323                $(this).attr({
1324                    'role': 'tabpanel',
1325                    'id': 'slick-slide' + _.instanceUid + i,
1326                    'tabindex': -1
1327                });
1328
1329                if (slideControlIndex !== -1) {
1330                   var ariaButtonControl = 'slick-slide-control' + _.instanceUid + slideControlIndex
1331                   if ($('#' + ariaButtonControl).length) {
1332                     $(this).attr({
1333                         'aria-describedby': ariaButtonControl
1334                     });
1335                   }
1336                }
1337            });
1338
1339            _.$dots.attr('role', 'tablist').find('li').each(function(i) {
1340                var mappedSlideIndex = tabControlIndexes[i];
1341
1342                $(this).attr({
1343                    'role': 'presentation'
1344                });
1345
1346                $(this).find('button').first().attr({
1347                    'role': 'tab',
1348                    'id': 'slick-slide-control' + _.instanceUid + i,
1349                    'aria-controls': 'slick-slide' + _.instanceUid + mappedSlideIndex,
1350                    'aria-label': (i + 1) + ' of ' + numDotGroups,
1351                    'aria-selected': null,
1352                    'tabindex': '-1'
1353                });
1354
1355            }).eq(_.currentSlide).find('button').attr({
1356                'aria-selected': 'true',
1357                'tabindex': '0'
1358            }).end();
1359        }
1360
1361        for (var i=_.currentSlide, max=i+_.options.slidesToShow; i < max; i++) {
1362          if (_.options.focusOnChange) {
1363            _.$slides.eq(i).attr({'tabindex': '0'});
1364          } else {
1365            _.$slides.eq(i).removeAttr('tabindex');
1366          }
1367        }
1368
1369        _.activateADA();
1370
1371    };
1372
1373    Slick.prototype.initArrowEvents = function() {
1374
1375        var _ = this;
1376
1377        if (_.options.arrows === true && _.slideCount > _.options.slidesToShow) {
1378            _.$prevArrow
1379               .off('click.slick')
1380               .on('click.slick', {
1381                    message: 'previous'
1382               }, _.changeSlide);
1383            _.$nextArrow
1384               .off('click.slick')
1385               .on('click.slick', {
1386                    message: 'next'
1387               }, _.changeSlide);
1388
1389            if (_.options.accessibility === true) {
1390                _.$prevArrow.on('keydown.slick', _.keyHandler);
1391                _.$nextArrow.on('keydown.slick', _.keyHandler);
1392            }
1393        }
1394
1395    };
1396
1397    Slick.prototype.initDotEvents = function() {
1398
1399        var _ = this;
1400
1401        if (_.options.dots === true && _.slideCount > _.options.slidesToShow) {
1402            $('li', _.$dots).on('click.slick', {
1403                message: 'index'
1404            }, _.changeSlide);
1405
1406            if (_.options.accessibility === true) {
1407                _.$dots.on('keydown.slick', _.keyHandler);
1408            }
1409        }
1410
1411        if (_.options.dots === true && _.options.pauseOnDotsHover === true && _.slideCount > _.options.slidesToShow) {
1412
1413            $('li', _.$dots)
1414                .on('mouseenter.slick', $.proxy(_.interrupt, _, true))
1415                .on('mouseleave.slick', $.proxy(_.interrupt, _, false));
1416
1417        }
1418
1419    };
1420
1421    Slick.prototype.initSlideEvents = function() {
1422
1423        var _ = this;
1424
1425        if ( _.options.pauseOnHover ) {
1426
1427            _.$list.on('mouseenter.slick', $.proxy(_.interrupt, _, true));
1428            _.$list.on('mouseleave.slick', $.proxy(_.interrupt, _, false));
1429
1430        }
1431
1432    };
1433
1434    Slick.prototype.initializeEvents = function() {
1435
1436        var _ = this;
1437
1438        _.initArrowEvents();
1439
1440        _.initDotEvents();
1441        _.initSlideEvents();
1442
1443        _.$list.on('touchstart.slick mousedown.slick', {
1444            action: 'start'
1445        }, _.swipeHandler);
1446        _.$list.on('touchmove.slick mousemove.slick', {
1447            action: 'move'
1448        }, _.swipeHandler);
1449        _.$list.on('touchend.slick mouseup.slick', {
1450            action: 'end'
1451        }, _.swipeHandler);
1452        _.$list.on('touchcancel.slick mouseleave.slick', {
1453            action: 'end'
1454        }, _.swipeHandler);
1455
1456        _.$list.on('click.slick', _.clickHandler);
1457
1458        $(document).on(_.visibilityChange, $.proxy(_.visibility, _));
1459
1460        if (_.options.accessibility === true) {
1461            _.$list.on('keydown.slick', _.keyHandler);
1462        }
1463
1464        if (_.options.focusOnSelect === true) {
1465            $(_.$slideTrack).children().on('click.slick', _.selectHandler);
1466        }
1467
1468        $(window).on('orientationchange.slick.slick-' + _.instanceUid, $.proxy(_.orientationChange, _));
1469
1470        $(window).on('resize.slick.slick-' + _.instanceUid, $.proxy(_.resize, _));
1471
1472        $('[draggable!=true]', _.$slideTrack).on('dragstart', _.preventDefault);
1473
1474        $(window).on('load.slick.slick-' + _.instanceUid, _.setPosition);
1475        $(_.setPosition);
1476
1477    };
1478
1479    Slick.prototype.initUI = function() {
1480
1481        var _ = this;
1482
1483        if (_.options.arrows === true && _.slideCount > _.options.slidesToShow) {
1484
1485            _.$prevArrow.show();
1486            _.$nextArrow.show();
1487
1488        }
1489
1490        if (_.options.dots === true && _.slideCount > _.options.slidesToShow) {
1491
1492            _.$dots.show();
1493
1494        }
1495
1496    };
1497
1498    Slick.prototype.keyHandler = function(event) {
1499
1500        var _ = this;
1501         //Dont slide if the cursor is inside the form fields and arrow keys are pressed
1502        if(!event.target.tagName.match('TEXTAREA|INPUT|SELECT')) {
1503            if (event.keyCode === 37 && _.options.accessibility === true) {
1504                _.changeSlide({
1505                    data: {
1506                        message: _.options.rtl === true ? 'next' :  'previous'
1507                    }
1508                });
1509            } else if (event.keyCode === 39 && _.options.accessibility === true) {
1510                _.changeSlide({
1511                    data: {
1512                        message: _.options.rtl === true ? 'previous' : 'next'
1513                    }
1514                });
1515            }
1516        }
1517
1518    };
1519
1520    Slick.prototype.lazyLoad = function() {
1521
1522        var _ = this,
1523            loadRange, cloneRange, rangeStart, rangeEnd;
1524
1525        function loadImages(imagesScope) {
1526
1527            $('img[data-lazy]', imagesScope).each(function() {
1528
1529                var image = $(this),
1530                    imageSource = $(this).attr('data-lazy'),
1531                    imageSrcSet = $(this).attr('data-srcset'),
1532                    imageSizes  = $(this).attr('data-sizes') || _.$slider.attr('data-sizes'),
1533                    imageToLoad = document.createElement('img');
1534
1535                imageToLoad.onload = function() {
1536
1537                    image
1538                        .animate({ opacity: 0 }, 100, function() {
1539
1540                            if (imageSrcSet) {
1541                                image
1542                                    .attr('srcset', imageSrcSet );
1543
1544                                if (imageSizes) {
1545                                    image
1546                                        .attr('sizes', imageSizes );
1547                                }
1548                            }
1549
1550                            image
1551                                .attr('src', imageSource)
1552                                .animate({ opacity: 1 }, 200, function() {
1553                                    image
1554                                        .removeAttr('data-lazy data-srcset data-sizes')
1555                                        .removeClass('slick-loading');
1556                                });
1557                            _.$slider.trigger('lazyLoaded', [_, image, imageSource]);
1558                        });
1559
1560                };
1561
1562                imageToLoad.onerror = function() {
1563
1564                    image
1565                        .removeAttr( 'data-lazy' )
1566                        .removeClass( 'slick-loading' )
1567                        .addClass( 'slick-lazyload-error' );
1568
1569                    _.$slider.trigger('lazyLoadError', [ _, image, imageSource ]);
1570
1571                };
1572
1573                imageToLoad.src = imageSource;
1574
1575            });
1576
1577        }
1578
1579        if (_.options.centerMode === true) {
1580            if (_.options.infinite === true) {
1581                rangeStart = _.currentSlide + (_.options.slidesToShow / 2 + 1);
1582                rangeEnd = rangeStart + _.options.slidesToShow + 2;
1583            } else {
1584                rangeStart = Math.max(0, _.currentSlide - (_.options.slidesToShow / 2 + 1));
1585                rangeEnd = 2 + (_.options.slidesToShow / 2 + 1) + _.currentSlide;
1586            }
1587        } else {
1588            rangeStart = _.options.infinite ? _.options.slidesToShow + _.currentSlide : _.currentSlide;
1589            rangeEnd = Math.ceil(rangeStart + _.options.slidesToShow);
1590            if (_.options.fade === true) {
1591                if (rangeStart > 0) rangeStart--;
1592                if (rangeEnd <= _.slideCount) rangeEnd++;
1593            }
1594        }
1595
1596        loadRange = _.$slider.find('.slick-slide').slice(rangeStart, rangeEnd);
1597
1598        if (_.options.lazyLoad === 'anticipated') {
1599            var prevSlide = rangeStart - 1,
1600                nextSlide = rangeEnd,
1601                $slides = _.$slider.find('.slick-slide');
1602
1603            for (var i = 0; i < _.options.slidesToScroll; i++) {
1604                if (prevSlide < 0) prevSlide = _.slideCount - 1;
1605                loadRange = loadRange.add($slides.eq(prevSlide));
1606                loadRange = loadRange.add($slides.eq(nextSlide));
1607                prevSlide--;
1608                nextSlide++;
1609            }
1610        }
1611
1612        loadImages(loadRange);
1613
1614        if (_.slideCount <= _.options.slidesToShow) {
1615            cloneRange = _.$slider.find('.slick-slide');
1616            loadImages(cloneRange);
1617        } else
1618        if (_.currentSlide >= _.slideCount - _.options.slidesToShow) {
1619            cloneRange = _.$slider.find('.slick-cloned').slice(0, _.options.slidesToShow);
1620            loadImages(cloneRange);
1621        } else if (_.currentSlide === 0) {
1622            cloneRange = _.$slider.find('.slick-cloned').slice(_.options.slidesToShow * -1);
1623            loadImages(cloneRange);
1624        }
1625
1626    };
1627
1628    Slick.prototype.loadSlider = function() {
1629
1630        var _ = this;
1631
1632        _.setPosition();
1633
1634        _.$slideTrack.css({
1635            opacity: 1
1636        });
1637
1638        _.$slider.removeClass('slick-loading');
1639
1640        _.initUI();
1641
1642        if (_.options.lazyLoad === 'progressive') {
1643            _.progressiveLazyLoad();
1644        }
1645
1646    };
1647
1648    Slick.prototype.next = Slick.prototype.slickNext = function() {
1649
1650        var _ = this;
1651
1652        _.changeSlide({
1653            data: {
1654                message: 'next'
1655            }
1656        });
1657
1658    };
1659
1660    Slick.prototype.orientationChange = function() {
1661
1662        var _ = this;
1663
1664        _.checkResponsive();
1665        _.setPosition();
1666
1667    };
1668
1669    Slick.prototype.pause = Slick.prototype.slickPause = function() {
1670
1671        var _ = this;
1672
1673        _.autoPlayClear();
1674        _.paused = true;
1675
1676    };
1677
1678    Slick.prototype.play = Slick.prototype.slickPlay = function() {
1679
1680        var _ = this;
1681
1682        _.autoPlay();
1683        _.options.autoplay = true;
1684        _.paused = false;
1685        _.focussed = false;
1686        _.interrupted = false;
1687
1688    };
1689
1690    Slick.prototype.postSlide = function(index) {
1691
1692        var _ = this;
1693
1694        if( !_.unslicked ) {
1695
1696            _.$slider.trigger('afterChange', [_, index]);
1697
1698            _.animating = false;
1699
1700            if (_.slideCount > _.options.slidesToShow) {
1701                _.setPosition();
1702            }
1703
1704            _.swipeLeft = null;
1705
1706            if ( _.options.autoplay ) {
1707                _.autoPlay();
1708            }
1709
1710            if (_.options.accessibility === true) {
1711                _.initADA();
1712
1713                if (_.options.focusOnChange) {
1714                    var $currentSlide = $(_.$slides.get(_.currentSlide));
1715                    $currentSlide.attr('tabindex', 0).focus();
1716                }
1717            }
1718
1719        }
1720
1721    };
1722
1723    Slick.prototype.prev = Slick.prototype.slickPrev = function() {
1724
1725        var _ = this;
1726
1727        _.changeSlide({
1728            data: {
1729                message: 'previous'
1730            }
1731        });
1732
1733    };
1734
1735    Slick.prototype.preventDefault = function(event) {
1736
1737        event.preventDefault();
1738
1739    };
1740
1741    Slick.prototype.progressiveLazyLoad = function( tryCount ) {
1742
1743        tryCount = tryCount || 1;
1744
1745        var _ = this,
1746            $imgsToLoad = $( 'img[data-lazy]', _.$slider ),
1747            image,
1748            imageSource,
1749            imageSrcSet,
1750            imageSizes,
1751            imageToLoad;
1752
1753        if ( $imgsToLoad.length ) {
1754
1755            image = $imgsToLoad.first();
1756            imageSource = image.attr('data-lazy');
1757            imageSrcSet = image.attr('data-srcset');
1758            imageSizes  = image.attr('data-sizes') || _.$slider.attr('data-sizes');
1759            imageToLoad = document.createElement('img');
1760
1761            imageToLoad.onload = function() {
1762
1763                if (imageSrcSet) {
1764                    image
1765                        .attr('srcset', imageSrcSet );
1766
1767                    if (imageSizes) {
1768                        image
1769                            .attr('sizes', imageSizes );
1770                    }
1771                }
1772
1773                image
1774                    .attr( 'src', imageSource )
1775                    .removeAttr('data-lazy data-srcset data-sizes')
1776                    .removeClass('slick-loading');
1777
1778                if ( _.options.adaptiveHeight === true ) {
1779                    _.setPosition();
1780                }
1781
1782                _.$slider.trigger('lazyLoaded', [ _, image, imageSource ]);
1783                _.progressiveLazyLoad();
1784
1785            };
1786
1787            imageToLoad.onerror = function() {
1788
1789                if ( tryCount < 3 ) {
1790
1791                    /**
1792                     * try to load the image 3 times,
1793                     * leave a slight delay so we don't get
1794                     * servers blocking the request.
1795                     */
1796                    setTimeout( function() {
1797                        _.progressiveLazyLoad( tryCount + 1 );
1798                    }, 500 );
1799
1800                } else {
1801
1802                    image
1803                        .removeAttr( 'data-lazy' )
1804                        .removeClass( 'slick-loading' )
1805                        .addClass( 'slick-lazyload-error' );
1806
1807                    _.$slider.trigger('lazyLoadError', [ _, image, imageSource ]);
1808
1809                    _.progressiveLazyLoad();
1810
1811                }
1812
1813            };
1814
1815            imageToLoad.src = imageSource;
1816
1817        } else {
1818
1819            _.$slider.trigger('allImagesLoaded', [ _ ]);
1820
1821        }
1822
1823    };
1824
1825    Slick.prototype.refresh = function( initializing ) {
1826
1827        var _ = this, currentSlide, lastVisibleIndex;
1828
1829        lastVisibleIndex = _.slideCount - _.options.slidesToShow;
1830
1831        // in non-infinite sliders, we don't want to go past the
1832        // last visible index.
1833        if( !_.options.infinite && ( _.currentSlide > lastVisibleIndex )) {
1834            _.currentSlide = lastVisibleIndex;
1835        }
1836
1837        // if less slides than to show, go to start.
1838        if ( _.slideCount <= _.options.slidesToShow ) {
1839            _.currentSlide = 0;
1840
1841        }
1842
1843        currentSlide = _.currentSlide;
1844
1845        _.destroy(true);
1846
1847        $.extend(_, _.initials, { currentSlide: currentSlide });
1848
1849        _.init();
1850
1851        if( !initializing ) {
1852
1853            _.changeSlide({
1854                data: {
1855                    message: 'index',
1856                    index: currentSlide
1857                }
1858            }, false);
1859
1860        }
1861
1862    };
1863
1864    Slick.prototype.registerBreakpoints = function() {
1865
1866        var _ = this, breakpoint, currentBreakpoint, l,
1867            responsiveSettings = _.options.responsive || null;
1868
1869        if ( $.type(responsiveSettings) === 'array' && responsiveSettings.length ) {
1870
1871            _.respondTo = _.options.respondTo || 'window';
1872
1873            for ( breakpoint in responsiveSettings ) {
1874
1875                l = _.breakpoints.length-1;
1876
1877                if (responsiveSettings.hasOwnProperty(breakpoint)) {
1878                    currentBreakpoint = responsiveSettings[breakpoint].breakpoint;
1879
1880                    // loop through the breakpoints and cut out any existing
1881                    // ones with the same breakpoint number, we don't want dupes.
1882                    while( l >= 0 ) {
1883                        if( _.breakpoints[l] && _.breakpoints[l] === currentBreakpoint ) {
1884                            _.breakpoints.splice(l,1);
1885                        }
1886                        l--;
1887                    }
1888
1889                    _.breakpoints.push(currentBreakpoint);
1890                    _.breakpointSettings[currentBreakpoint] = responsiveSettings[breakpoint].settings;
1891
1892                }
1893
1894            }
1895
1896            _.breakpoints.sort(function(a, b) {
1897                return ( _.options.mobileFirst ) ? a-b : b-a;
1898            });
1899
1900        }
1901
1902    };
1903
1904    Slick.prototype.reinit = function() {
1905
1906        var _ = this;
1907
1908        _.$slides =
1909            _.$slideTrack
1910                .children(_.options.slide)
1911                .addClass('slick-slide');
1912
1913        _.slideCount = _.$slides.length;
1914
1915        if (_.currentSlide >= _.slideCount && _.currentSlide !== 0) {
1916            _.currentSlide = _.currentSlide - _.options.slidesToScroll;
1917        }
1918
1919        if (_.slideCount <= _.options.slidesToShow) {
1920            _.currentSlide = 0;
1921        }
1922
1923        _.registerBreakpoints();
1924
1925        _.setProps();
1926        _.setupInfinite();
1927        _.buildArrows();
1928        _.updateArrows();
1929        _.initArrowEvents();
1930        _.buildDots();
1931        _.updateDots();
1932        _.initDotEvents();
1933        _.cleanUpSlideEvents();
1934        _.initSlideEvents();
1935
1936        _.checkResponsive(false, true);
1937
1938        if (_.options.focusOnSelect === true) {
1939            $(_.$slideTrack).children().on('click.slick', _.selectHandler);
1940        }
1941
1942        _.setSlideClasses(typeof _.currentSlide === 'number' ? _.currentSlide : 0);
1943
1944        _.setPosition();
1945        _.focusHandler();
1946
1947        _.paused = !_.options.autoplay;
1948        _.autoPlay();
1949
1950        _.$slider.trigger('reInit', [_]);
1951
1952    };
1953
1954    Slick.prototype.resize = function() {
1955
1956        var _ = this;
1957
1958        if ($(window).width() !== _.windowWidth) {
1959            clearTimeout(_.windowDelay);
1960            _.windowDelay = window.setTimeout(function() {
1961                _.windowWidth = $(window).width();
1962                _.checkResponsive();
1963                if( !_.unslicked ) { _.setPosition(); }
1964            }, 50);
1965        }
1966    };
1967
1968    Slick.prototype.removeSlide = Slick.prototype.slickRemove = function(index, removeBefore, removeAll) {
1969
1970        var _ = this;
1971
1972        if (typeof(index) === 'boolean') {
1973            removeBefore = index;
1974            index = removeBefore === true ? 0 : _.slideCount - 1;
1975        } else {
1976            index = removeBefore === true ? --index : index;
1977        }
1978
1979        if (_.slideCount < 1 || index < 0 || index > _.slideCount - 1) {
1980            return false;
1981        }
1982
1983        _.unload();
1984
1985        if (removeAll === true) {
1986            _.$slideTrack.children().remove();
1987        } else {
1988            _.$slideTrack.children(this.options.slide).eq(index).remove();
1989        }
1990
1991        _.$slides = _.$slideTrack.children(this.options.slide);
1992
1993        _.$slideTrack.children(this.options.slide).detach();
1994
1995        _.$slideTrack.append(_.$slides);
1996
1997        _.$slidesCache = _.$slides;
1998
1999        _.reinit();
2000
2001    };
2002
2003    Slick.prototype.setCSS = function(position) {
2004
2005        var _ = this,
2006            positionProps = {},
2007            x, y;
2008
2009        if (_.options.rtl === true) {
2010            position = -position;
2011        }
2012        x = _.positionProp == 'left' ? Math.ceil(position) + 'px' : '0px';
2013        y = _.positionProp == 'top' ? Math.ceil(position) + 'px' : '0px';
2014
2015        positionProps[_.positionProp] = position;
2016
2017        if (_.transformsEnabled === false) {
2018            _.$slideTrack.css(positionProps);
2019        } else {
2020            positionProps = {};
2021            if (_.cssTransitions === false) {
2022                positionProps[_.animType] = 'translate(' + x + ', ' + y + ')';
2023                _.$slideTrack.css(positionProps);
2024            } else {
2025                positionProps[_.animType] = 'translate3d(' + x + ', ' + y + ', 0px)';
2026                _.$slideTrack.css(positionProps);
2027            }
2028        }
2029
2030    };
2031
2032    Slick.prototype.setDimensions = function() {
2033
2034        var _ = this;
2035
2036        if (_.options.vertical === false) {
2037            if (_.options.centerMode === true) {
2038                _.$list.css({
2039                    padding: ('0px ' + _.options.centerPadding)
2040                });
2041            }
2042        } else {
2043            _.$list.height(_.$slides.first().outerHeight(true) * _.options.slidesToShow);
2044            if (_.options.centerMode === true) {
2045                _.$list.css({
2046                    padding: (_.options.centerPadding + ' 0px')
2047                });
2048            }
2049        }
2050
2051        _.listWidth = _.$list.width();
2052        _.listHeight = _.$list.height();
2053
2054
2055        if (_.options.vertical === false && _.options.variableWidth === false) {
2056            _.slideWidth = Math.ceil(_.listWidth / _.options.slidesToShow);
2057            _.$slideTrack.width(Math.ceil((_.slideWidth * _.$slideTrack.children('.slick-slide').length)));
2058
2059        } else if (_.options.variableWidth === true) {
2060            _.$slideTrack.width(5000 * _.slideCount);
2061        } else {
2062            _.slideWidth = Math.ceil(_.listWidth);
2063            _.$slideTrack.height(Math.ceil((_.$slides.first().outerHeight(true) * _.$slideTrack.children('.slick-slide').length)));
2064        }
2065
2066        var offset = _.$slides.first().outerWidth(true) - _.$slides.first().width();
2067        if (_.options.variableWidth === false) _.$slideTrack.children('.slick-slide').width(_.slideWidth - offset);
2068
2069    };
2070
2071    Slick.prototype.setFade = function() {
2072
2073        var _ = this,
2074            targetLeft;
2075
2076        _.$slides.each(function(index, element) {
2077            targetLeft = (_.slideWidth * index) * -1;
2078            if (_.options.rtl === true) {
2079                $(element).css({
2080                    position: 'relative',
2081                    right: targetLeft,
2082                    top: 0,
2083                    zIndex: _.options.zIndex - 2,
2084                    opacity: 0
2085                });
2086            } else {
2087                $(element).css({
2088                    position: 'relative',
2089                    left: targetLeft,
2090                    top: 0,
2091                    zIndex: _.options.zIndex - 2,
2092                    opacity: 0
2093                });
2094            }
2095        });
2096
2097        _.$slides.eq(_.currentSlide).css({
2098            zIndex: _.options.zIndex - 1,
2099            opacity: 1
2100        });
2101
2102    };
2103
2104    Slick.prototype.setHeight = function() {
2105
2106        var _ = this;
2107
2108        if (_.options.slidesToShow === 1 && _.options.adaptiveHeight === true && _.options.vertical === false) {
2109            var targetHeight = _.$slides.eq(_.currentSlide).outerHeight(true);
2110            _.$list.css('height', targetHeight);
2111        }
2112
2113    };
2114
2115    Slick.prototype.setOption =
2116    Slick.prototype.slickSetOption = function() {
2117
2118        /**
2119         * accepts arguments in format of:
2120         *
2121         *  - for changing a single option's value:
2122         *     .slick("setOption", option, value, refresh )
2123         *
2124         *  - for changing a set of responsive options:
2125         *     .slick("setOption", 'responsive', [{}, ...], refresh )
2126         *
2127         *  - for updating multiple values at once (not responsive)
2128         *     .slick("setOption", { 'option': value, ... }, refresh )
2129         */
2130
2131        var _ = this, l, item, option, value, refresh = false, type;
2132
2133        if( $.type( arguments[0] ) === 'object' ) {
2134
2135            option =  arguments[0];
2136            refresh = arguments[1];
2137            type = 'multiple';
2138
2139        } else if ( $.type( arguments[0] ) === 'string' ) {
2140
2141            option =  arguments[0];
2142            value = arguments[1];
2143            refresh = arguments[2];
2144
2145            if ( arguments[0] === 'responsive' && $.type( arguments[1] ) === 'array' ) {
2146
2147                type = 'responsive';
2148
2149            } else if ( typeof arguments[1] !== 'undefined' ) {
2150
2151                type = 'single';
2152
2153            }
2154
2155        }
2156
2157        if ( type === 'single' ) {
2158
2159            _.options[option] = value;
2160
2161
2162        } else if ( type === 'multiple' ) {
2163
2164            $.each( option , function( opt, val ) {
2165
2166                _.options[opt] = val;
2167
2168            });
2169
2170
2171        } else if ( type === 'responsive' ) {
2172
2173            for ( item in value ) {
2174
2175                if( $.type( _.options.responsive ) !== 'array' ) {
2176
2177                    _.options.responsive = [ value[item] ];
2178
2179                } else {
2180
2181                    l = _.options.responsive.length-1;
2182
2183                    // loop through the responsive object and splice out duplicates.
2184                    while( l >= 0 ) {
2185
2186                        if( _.options.responsive[l].breakpoint === value[item].breakpoint ) {
2187
2188                            _.options.responsive.splice(l,1);
2189
2190                        }
2191
2192                        l--;
2193
2194                    }
2195
2196                    _.options.responsive.push( value[item] );
2197
2198                }
2199
2200            }
2201
2202        }
2203
2204        if ( refresh ) {
2205
2206            _.unload();
2207            _.reinit();
2208
2209        }
2210
2211    };
2212
2213    Slick.prototype.setPosition = function() {
2214
2215        var _ = this;
2216
2217        _.setDimensions();
2218
2219        _.setHeight();
2220
2221        if (_.options.fade === false) {
2222            _.setCSS(_.getLeft(_.currentSlide));
2223        } else {
2224            _.setFade();
2225        }
2226
2227        _.$slider.trigger('setPosition', [_]);
2228
2229    };
2230
2231    Slick.prototype.setProps = function() {
2232
2233        var _ = this,
2234            bodyStyle = document.body.style;
2235
2236        _.positionProp = _.options.vertical === true ? 'top' : 'left';
2237
2238        if (_.positionProp === 'top') {
2239            _.$slider.addClass('slick-vertical');
2240        } else {
2241            _.$slider.removeClass('slick-vertical');
2242        }
2243
2244        if (bodyStyle.WebkitTransition !== undefined ||
2245            bodyStyle.MozTransition !== undefined ||
2246            bodyStyle.msTransition !== undefined) {
2247            if (_.options.useCSS === true) {
2248                _.cssTransitions = true;
2249            }
2250        }
2251
2252        if ( _.options.fade ) {
2253            if ( typeof _.options.zIndex === 'number' ) {
2254                if( _.options.zIndex < 3 ) {
2255                    _.options.zIndex = 3;
2256                }
2257            } else {
2258                _.options.zIndex = _.defaults.zIndex;
2259            }
2260        }
2261
2262        if (bodyStyle.OTransform !== undefined) {
2263            _.animType = 'OTransform';
2264            _.transformType = '-o-transform';
2265            _.transitionType = 'OTransition';
2266            if (bodyStyle.perspectiveProperty === undefined && bodyStyle.webkitPerspective === undefined) _.animType = false;
2267        }
2268        if (bodyStyle.MozTransform !== undefined) {
2269            _.animType = 'MozTransform';
2270            _.transformType = '-moz-transform';
2271            _.transitionType = 'MozTransition';
2272            if (bodyStyle.perspectiveProperty === undefined && bodyStyle.MozPerspective === undefined) _.animType = false;
2273        }
2274        if (bodyStyle.webkitTransform !== undefined) {
2275            _.animType = 'webkitTransform';
2276            _.transformType = '-webkit-transform';
2277            _.transitionType = 'webkitTransition';
2278            if (bodyStyle.perspectiveProperty === undefined && bodyStyle.webkitPerspective === undefined) _.animType = false;
2279        }
2280        if (bodyStyle.msTransform !== undefined) {
2281            _.animType = 'msTransform';
2282            _.transformType = '-ms-transform';
2283            _.transitionType = 'msTransition';
2284            if (bodyStyle.msTransform === undefined) _.animType = false;
2285        }
2286        if (bodyStyle.transform !== undefined && _.animType !== false) {
2287            _.animType = 'transform';
2288            _.transformType = 'transform';
2289            _.transitionType = 'transition';
2290        }
2291        _.transformsEnabled = _.options.useTransform && (_.animType !== null && _.animType !== false);
2292    };
2293
2294
2295    Slick.prototype.setSlideClasses = function(index) {
2296
2297        var _ = this,
2298            centerOffset, allSlides, indexOffset, remainder;
2299
2300        allSlides = _.$slider
2301            .find('.slick-slide')
2302            .removeClass('slick-active slick-center slick-current')
2303            .attr('aria-hidden', 'true');
2304
2305        _.$slides
2306            .eq(index)
2307            .addClass('slick-current');
2308
2309        if (_.options.centerMode === true) {
2310
2311            var evenCoef = _.options.slidesToShow % 2 === 0 ? 1 : 0;
2312
2313            centerOffset = Math.floor(_.options.slidesToShow / 2);
2314
2315            if (_.options.infinite === true) {
2316
2317                if (index >= centerOffset && index <= (_.slideCount - 1) - centerOffset) {
2318                    _.$slides
2319                        .slice(index - centerOffset + evenCoef, index + centerOffset + 1)
2320                        .addClass('slick-active')
2321                        .attr('aria-hidden', 'false');
2322
2323                } else {
2324
2325                    indexOffset = _.options.slidesToShow + index;
2326                    allSlides
2327                        .slice(indexOffset - centerOffset + 1 + evenCoef, indexOffset + centerOffset + 2)
2328                        .addClass('slick-active')
2329                        .attr('aria-hidden', 'false');
2330
2331                }
2332
2333                if (index === 0) {
2334
2335                    allSlides
2336                        .eq(allSlides.length - 1 - _.options.slidesToShow)
2337                        .addClass('slick-center');
2338
2339                } else if (index === _.slideCount - 1) {
2340
2341                    allSlides
2342                        .eq(_.options.slidesToShow)
2343                        .addClass('slick-center');
2344
2345                }
2346
2347            }
2348
2349            _.$slides
2350                .eq(index)
2351                .addClass('slick-center');
2352
2353        } else {
2354
2355            if (index >= 0 && index <= (_.slideCount - _.options.slidesToShow)) {
2356
2357                _.$slides
2358                    .slice(index, index + _.options.slidesToShow)
2359                    .addClass('slick-active')
2360                    .attr('aria-hidden', 'false');
2361
2362            } else if (allSlides.length <= _.options.slidesToShow) {
2363
2364                allSlides
2365                    .addClass('slick-active')
2366                    .attr('aria-hidden', 'false');
2367
2368            } else {
2369
2370                remainder = _.slideCount % _.options.slidesToShow;
2371                indexOffset = _.options.infinite === true ? _.options.slidesToShow + index : index;
2372
2373                if (_.options.slidesToShow == _.options.slidesToScroll && (_.slideCount - index) < _.options.slidesToShow) {
2374
2375                    allSlides
2376                        .slice(indexOffset - (_.options.slidesToShow - remainder), indexOffset + remainder)
2377                        .addClass('slick-active')
2378                        .attr('aria-hidden', 'false');
2379
2380                } else {
2381
2382                    allSlides
2383                        .slice(indexOffset, indexOffset + _.options.slidesToShow)
2384                        .addClass('slick-active')
2385                        .attr('aria-hidden', 'false');
2386
2387                }
2388
2389            }
2390
2391        }
2392
2393        if (_.options.lazyLoad === 'ondemand' || _.options.lazyLoad === 'anticipated') {
2394            _.lazyLoad();
2395        }
2396    };
2397
2398    Slick.prototype.setupInfinite = function() {
2399
2400        var _ = this,
2401            i, slideIndex, infiniteCount;
2402
2403        if (_.options.fade === true) {
2404            _.options.centerMode = false;
2405        }
2406
2407        if (_.options.infinite === true && _.options.fade === false) {
2408
2409            slideIndex = null;
2410
2411            if (_.slideCount > _.options.slidesToShow) {
2412
2413                if (_.options.centerMode === true) {
2414                    infiniteCount = _.options.slidesToShow + 1;
2415                } else {
2416                    infiniteCount = _.options.slidesToShow;
2417                }
2418
2419                for (i = _.slideCount; i > (_.slideCount -
2420                        infiniteCount); i -= 1) {
2421                    slideIndex = i - 1;
2422                    $(_.$slides[slideIndex]).clone(true).attr('id', '')
2423                        .attr('data-slick-index', slideIndex - _.slideCount)
2424                        .prependTo(_.$slideTrack).addClass('slick-cloned');
2425                }
2426                for (i = 0; i < infiniteCount  + _.slideCount; i += 1) {
2427                    slideIndex = i;
2428                    $(_.$slides[slideIndex]).clone(true).attr('id', '')
2429                        .attr('data-slick-index', slideIndex + _.slideCount)
2430                        .appendTo(_.$slideTrack).addClass('slick-cloned');
2431                }
2432                _.$slideTrack.find('.slick-cloned').find('[id]').each(function() {
2433                    $(this).attr('id', '');
2434                });
2435
2436            }
2437
2438        }
2439
2440    };
2441
2442    Slick.prototype.interrupt = function( toggle ) {
2443
2444        var _ = this;
2445
2446        if( !toggle ) {
2447            _.autoPlay();
2448        }
2449        _.interrupted = toggle;
2450
2451    };
2452
2453    Slick.prototype.selectHandler = function(event) {
2454
2455        var _ = this;
2456
2457        var targetElement =
2458            $(event.target).is('.slick-slide') ?
2459                $(event.target) :
2460                $(event.target).parents('.slick-slide');
2461
2462        var index = parseInt(targetElement.attr('data-slick-index'));
2463
2464        if (!index) index = 0;
2465
2466        if (_.slideCount <= _.options.slidesToShow) {
2467
2468            _.slideHandler(index, false, true);
2469            return;
2470
2471        }
2472
2473        _.slideHandler(index);
2474
2475    };
2476
2477    Slick.prototype.slideHandler = function(index, sync, dontAnimate) {
2478
2479        var targetSlide, animSlide, oldSlide, slideLeft, targetLeft = null,
2480            _ = this, navTarget;
2481
2482        sync = sync || false;
2483
2484        if (_.animating === true && _.options.waitForAnimate === true) {
2485            return;
2486        }
2487
2488        if (_.options.fade === true && _.currentSlide === index) {
2489            return;
2490        }
2491
2492        if (sync === false) {
2493            _.asNavFor(index);
2494        }
2495
2496        targetSlide = index;
2497        targetLeft = _.getLeft(targetSlide);
2498        slideLeft = _.getLeft(_.currentSlide);
2499
2500        _.currentLeft = _.swipeLeft === null ? slideLeft : _.swipeLeft;
2501
2502        if (_.options.infinite === false && _.options.centerMode === false && (index < 0 || index > _.getDotCount() * _.options.slidesToScroll)) {
2503            if (_.options.fade === false) {
2504                targetSlide = _.currentSlide;
2505                if (dontAnimate !== true && _.slideCount > _.options.slidesToShow) {
2506                    _.animateSlide(slideLeft, function() {
2507                        _.postSlide(targetSlide);
2508                    });
2509                } else {
2510                    _.postSlide(targetSlide);
2511                }
2512            }
2513            return;
2514        } else if (_.options.infinite === false && _.options.centerMode === true && (index < 0 || index > (_.slideCount - _.options.slidesToScroll))) {
2515            if (_.options.fade === false) {
2516                targetSlide = _.currentSlide;
2517                if (dontAnimate !== true && _.slideCount > _.options.slidesToShow) {
2518                    _.animateSlide(slideLeft, function() {
2519                        _.postSlide(targetSlide);
2520                    });
2521                } else {
2522                    _.postSlide(targetSlide);
2523                }
2524            }
2525            return;
2526        }
2527
2528        if ( _.options.autoplay ) {
2529            clearInterval(_.autoPlayTimer);
2530        }
2531
2532        if (targetSlide < 0) {
2533            if (_.slideCount % _.options.slidesToScroll !== 0) {
2534                animSlide = _.slideCount - (_.slideCount % _.options.slidesToScroll);
2535            } else {
2536                animSlide = _.slideCount + targetSlide;
2537            }
2538        } else if (targetSlide >= _.slideCount) {
2539            if (_.slideCount % _.options.slidesToScroll !== 0) {
2540                animSlide = 0;
2541            } else {
2542                animSlide = targetSlide - _.slideCount;
2543            }
2544        } else {
2545            animSlide = targetSlide;
2546        }
2547
2548        _.animating = true;
2549
2550        _.$slider.trigger('beforeChange', [_, _.currentSlide, animSlide]);
2551
2552        oldSlide = _.currentSlide;
2553        _.currentSlide = animSlide;
2554
2555        _.setSlideClasses(_.currentSlide);
2556
2557        if ( _.options.asNavFor ) {
2558
2559            navTarget = _.getNavTarget();
2560            navTarget = navTarget.slick('getSlick');
2561
2562            if ( navTarget.slideCount <= navTarget.options.slidesToShow ) {
2563                navTarget.setSlideClasses(_.currentSlide);
2564            }
2565
2566        }
2567
2568        _.updateDots();
2569        _.updateArrows();
2570
2571        if (_.options.fade === true) {
2572            if (dontAnimate !== true) {
2573
2574                _.fadeSlideOut(oldSlide);
2575
2576                _.fadeSlide(animSlide, function() {
2577                    _.postSlide(animSlide);
2578                });
2579
2580            } else {
2581                _.postSlide(animSlide);
2582            }
2583            _.animateHeight();
2584            return;
2585        }
2586
2587        if (dontAnimate !== true && _.slideCount > _.options.slidesToShow) {
2588            _.animateSlide(targetLeft, function() {
2589                _.postSlide(animSlide);
2590            });
2591        } else {
2592            _.postSlide(animSlide);
2593        }
2594
2595    };
2596
2597    Slick.prototype.startLoad = function() {
2598
2599        var _ = this;
2600
2601        if (_.options.arrows === true && _.slideCount > _.options.slidesToShow) {
2602
2603            _.$prevArrow.hide();
2604            _.$nextArrow.hide();
2605
2606        }
2607
2608        if (_.options.dots === true && _.slideCount > _.options.slidesToShow) {
2609
2610            _.$dots.hide();
2611
2612        }
2613
2614        _.$slider.addClass('slick-loading');
2615
2616    };
2617
2618    Slick.prototype.swipeDirection = function() {
2619
2620        var xDist, yDist, r, swipeAngle, _ = this;
2621
2622        xDist = _.touchObject.startX - _.touchObject.curX;
2623        yDist = _.touchObject.startY - _.touchObject.curY;
2624        r = Math.atan2(yDist, xDist);
2625
2626        swipeAngle = Math.round(r * 180 / Math.PI);
2627        if (swipeAngle < 0) {
2628            swipeAngle = 360 - Math.abs(swipeAngle);
2629        }
2630
2631        if ((swipeAngle <= 45) && (swipeAngle >= 0)) {
2632            return (_.options.rtl === false ? 'left' : 'right');
2633        }
2634        if ((swipeAngle <= 360) && (swipeAngle >= 315)) {
2635            return (_.options.rtl === false ? 'left' : 'right');
2636        }
2637        if ((swipeAngle >= 135) && (swipeAngle <= 225)) {
2638            return (_.options.rtl === false ? 'right' : 'left');
2639        }
2640        if (_.options.verticalSwiping === true) {
2641            if ((swipeAngle >= 35) && (swipeAngle <= 135)) {
2642                return 'down';
2643            } else {
2644                return 'up';
2645            }
2646        }
2647
2648        return 'vertical';
2649
2650    };
2651
2652    Slick.prototype.swipeEnd = function(event) {
2653
2654        var _ = this,
2655            slideCount,
2656            direction;
2657
2658        _.dragging = false;
2659        _.swiping = false;
2660
2661        if (_.scrolling) {
2662            _.scrolling = false;
2663            return false;
2664        }
2665
2666        _.interrupted = false;
2667        _.shouldClick = ( _.touchObject.swipeLength > 10 ) ? false : true;
2668
2669        if ( _.touchObject.curX === undefined ) {
2670            return false;
2671        }
2672
2673        if ( _.touchObject.edgeHit === true ) {
2674            _.$slider.trigger('edge', [_, _.swipeDirection() ]);
2675        }
2676
2677        if ( _.touchObject.swipeLength >= _.touchObject.minSwipe ) {
2678
2679            direction = _.swipeDirection();
2680
2681            switch ( direction ) {
2682
2683                case 'left':
2684                case 'down':
2685
2686                    slideCount =
2687                        _.options.swipeToSlide ?
2688                            _.checkNavigable( _.currentSlide + _.getSlideCount() ) :
2689                            _.currentSlide + _.getSlideCount();
2690
2691                    _.currentDirection = 0;
2692
2693                    break;
2694
2695                case 'right':
2696                case 'up':
2697
2698                    slideCount =
2699                        _.options.swipeToSlide ?
2700                            _.checkNavigable( _.currentSlide - _.getSlideCount() ) :
2701                            _.currentSlide - _.getSlideCount();
2702
2703                    _.currentDirection = 1;
2704
2705                    break;
2706
2707                default:
2708
2709
2710            }
2711
2712            if( direction != 'vertical' ) {
2713
2714                _.slideHandler( slideCount );
2715                _.touchObject = {};
2716                _.$slider.trigger('swipe', [_, direction ]);
2717
2718            }
2719
2720        } else {
2721
2722            if ( _.touchObject.startX !== _.touchObject.curX ) {
2723
2724                _.slideHandler( _.currentSlide );
2725                _.touchObject = {};
2726
2727            }
2728
2729        }
2730
2731    };
2732
2733    Slick.prototype.swipeHandler = function(event) {
2734
2735        var _ = this;
2736
2737        if ((_.options.swipe === false) || ('ontouchend' in document && _.options.swipe === false)) {
2738            return;
2739        } else if (_.options.draggable === false && event.type.indexOf('mouse') !== -1) {
2740            return;
2741        }
2742
2743        _.touchObject.fingerCount = event.originalEvent && event.originalEvent.touches !== undefined ?
2744            event.originalEvent.touches.length : 1;
2745
2746        _.touchObject.minSwipe = _.listWidth / _.options
2747            .touchThreshold;
2748
2749        if (_.options.verticalSwiping === true) {
2750            _.touchObject.minSwipe = _.listHeight / _.options
2751                .touchThreshold;
2752        }
2753
2754        switch (event.data.action) {
2755
2756            case 'start':
2757                _.swipeStart(event);
2758                break;
2759
2760            case 'move':
2761                _.swipeMove(event);
2762                break;
2763
2764            case 'end':
2765                _.swipeEnd(event);
2766                break;
2767
2768        }
2769
2770    };
2771
2772    Slick.prototype.swipeMove = function(event) {
2773
2774        var _ = this,
2775            edgeWasHit = false,
2776            curLeft, swipeDirection, swipeLength, positionOffset, touches, verticalSwipeLength;
2777
2778        touches = event.originalEvent !== undefined ? event.originalEvent.touches : null;
2779
2780        if (!_.dragging || _.scrolling || touches && touches.length !== 1) {
2781            return false;
2782        }
2783
2784        curLeft = _.getLeft(_.currentSlide);
2785
2786        _.touchObject.curX = touches !== undefined ? touches[0].pageX : event.clientX;
2787        _.touchObject.curY = touches !== undefined ? touches[0].pageY : event.clientY;
2788
2789        _.touchObject.swipeLength = Math.round(Math.sqrt(
2790            Math.pow(_.touchObject.curX - _.touchObject.startX, 2)));
2791
2792        verticalSwipeLength = Math.round(Math.sqrt(
2793            Math.pow(_.touchObject.curY - _.touchObject.startY, 2)));
2794
2795        if (!_.options.verticalSwiping && !_.swiping && verticalSwipeLength > 4) {
2796            _.scrolling = true;
2797            return false;
2798        }
2799
2800        if (_.options.verticalSwiping === true) {
2801            _.touchObject.swipeLength = verticalSwipeLength;
2802        }
2803
2804        swipeDirection = _.swipeDirection();
2805
2806        if (event.originalEvent !== undefined && _.touchObject.swipeLength > 4) {
2807            _.swiping = true;
2808            event.preventDefault();
2809        }
2810
2811        positionOffset = (_.options.rtl === false ? 1 : -1) * (_.touchObject.curX > _.touchObject.startX ? 1 : -1);
2812        if (_.options.verticalSwiping === true) {
2813            positionOffset = _.touchObject.curY > _.touchObject.startY ? 1 : -1;
2814        }
2815
2816
2817        swipeLength = _.touchObject.swipeLength;
2818
2819        _.touchObject.edgeHit = false;
2820
2821        if (_.options.infinite === false) {
2822            if ((_.currentSlide === 0 && swipeDirection === 'right') || (_.currentSlide >= _.getDotCount() && swipeDirection === 'left')) {
2823                swipeLength = _.touchObject.swipeLength * _.options.edgeFriction;
2824                _.touchObject.edgeHit = true;
2825            }
2826        }
2827
2828        if (_.options.vertical === false) {
2829            _.swipeLeft = curLeft + swipeLength * positionOffset;
2830        } else {
2831            _.swipeLeft = curLeft + (swipeLength * (_.$list.height() / _.listWidth)) * positionOffset;
2832        }
2833        if (_.options.verticalSwiping === true) {
2834            _.swipeLeft = curLeft + swipeLength * positionOffset;
2835        }
2836
2837        if (_.options.fade === true || _.options.touchMove === false) {
2838            return false;
2839        }
2840
2841        if (_.animating === true) {
2842            _.swipeLeft = null;
2843            return false;
2844        }
2845
2846        _.setCSS(_.swipeLeft);
2847
2848    };
2849
2850    Slick.prototype.swipeStart = function(event) {
2851
2852        var _ = this,
2853            touches;
2854
2855        _.interrupted = true;
2856
2857        if (_.touchObject.fingerCount !== 1 || _.slideCount <= _.options.slidesToShow) {
2858            _.touchObject = {};
2859            return false;
2860        }
2861
2862        if (event.originalEvent !== undefined && event.originalEvent.touches !== undefined) {
2863            touches = event.originalEvent.touches[0];
2864        }
2865
2866        _.touchObject.startX = _.touchObject.curX = touches !== undefined ? touches.pageX : event.clientX;
2867        _.touchObject.startY = _.touchObject.curY = touches !== undefined ? touches.pageY : event.clientY;
2868
2869        _.dragging = true;
2870
2871    };
2872
2873    Slick.prototype.unfilterSlides = Slick.prototype.slickUnfilter = function() {
2874
2875        var _ = this;
2876
2877        if (_.$slidesCache !== null) {
2878
2879            _.unload();
2880
2881            _.$slideTrack.children(this.options.slide).detach();
2882
2883            _.$slidesCache.appendTo(_.$slideTrack);
2884
2885            _.reinit();
2886
2887        }
2888
2889    };
2890
2891    Slick.prototype.unload = function() {
2892
2893        var _ = this;
2894
2895        $('.slick-cloned', _.$slider).remove();
2896
2897        if (_.$dots) {
2898            _.$dots.remove();
2899        }
2900
2901        if (_.$prevArrow && _.htmlExpr.test(_.options.prevArrow)) {
2902            _.$prevArrow.remove();
2903        }
2904
2905        if (_.$nextArrow && _.htmlExpr.test(_.options.nextArrow)) {
2906            _.$nextArrow.remove();
2907        }
2908
2909        _.$slides
2910            .removeClass('slick-slide slick-active slick-visible slick-current')
2911            .attr('aria-hidden', 'true')
2912            .css('width', '');
2913
2914    };
2915