Team:ETH Zurich/Templates/FlexSlider

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Revision as of 14:43, 10 September 2013 by Luwidmer (Talk | contribs)
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)

/*

* jQuery FlexSlider v2.2.0
* Copyright 2012 WooThemes
* Contributing Author: Tyler Smith
*/

(function ($) {

 //FlexSlider: Object Instance
 $.flexslider = function(el, options) {
   var slider = $(el);
   // making variables public
   slider.vars = $.extend({}, $.flexslider.defaults, options);
   var namespace = slider.vars.namespace,
       msGesture = window.navigator && window.navigator.msPointerEnabled && window.MSGesture,
       touch = (( "ontouchstart" in window ) || msGesture || window.DocumentTouch && document instanceof DocumentTouch) && slider.vars.touch,
       // depricating this idea, as devices are being released with both of these events
       //eventType = (touch) ? "touchend" : "click",
       eventType = "click touchend MSPointerUp",
       watchedEvent = "",
       watchedEventClearTimer,
       vertical = slider.vars.direction === "vertical",
       reverse = slider.vars.reverse,
       carousel = (slider.vars.itemWidth > 0),
       fade = slider.vars.animation === "fade",
       asNav = slider.vars.asNavFor !== "",
       methods = {},
       focused = true;
   // Store a reference to the slider object
   $.data(el, "flexslider", slider);
   // Private slider methods
   methods = {
     init: function() {
       slider.animating = false;
       // Get current slide and make sure it is a number
       slider.currentSlide = parseInt( ( slider.vars.startAt ? slider.vars.startAt : 0) );
       if ( isNaN( slider.currentSlide ) ) slider.currentSlide = 0;
       slider.animatingTo = slider.currentSlide;
       slider.atEnd = (slider.currentSlide === 0 || slider.currentSlide === slider.last);
       slider.containerSelector = slider.vars.selector.substr(0,slider.vars.selector.search(' '));
       slider.slides = $(slider.vars.selector, slider);
       slider.container = $(slider.containerSelector, slider);
       slider.count = slider.slides.length;
       // SYNC:
       slider.syncExists = $(slider.vars.sync).length > 0;
       // SLIDE:
       if (slider.vars.animation === "slide") slider.vars.animation = "swing";
       slider.prop = (vertical) ? "top" : "marginLeft";
       slider.args = {};
       // SLIDESHOW:
       slider.manualPause = false;
       slider.stopped = false;
       //PAUSE WHEN INVISIBLE
       slider.started = false;
       slider.startTimeout = null;
       // TOUCH/USECSS:
       slider.transitions = !slider.vars.video && !fade && slider.vars.useCSS && (function() {
         var obj = document.createElement('div'),
             props = ['perspectiveProperty', 'WebkitPerspective', 'MozPerspective', 'OPerspective', 'msPerspective'];
         for (var i in props) {
           if ( obj.style[ props[i] ] !== undefined ) {
             slider.pfx = props[i].replace('Perspective',).toLowerCase();
             slider.prop = "-" + slider.pfx + "-transform";
             return true;
           }
         }
         return false;
       }());
       // CONTROLSCONTAINER:
       if (slider.vars.controlsContainer !== "") slider.controlsContainer = $(slider.vars.controlsContainer).length > 0 && $(slider.vars.controlsContainer);
       // MANUAL:
       if (slider.vars.manualControls !== "") slider.manualControls = $(slider.vars.manualControls).length > 0 && $(slider.vars.manualControls);
       // RANDOMIZE:
       if (slider.vars.randomize) {
         slider.slides.sort(function() { return (Math.round(Math.random())-0.5); });
         slider.container.empty().append(slider.slides);
       }
       slider.doMath();
       // INIT
       slider.setup("init");
       // CONTROLNAV:
       if (slider.vars.controlNav) methods.controlNav.setup();
       // DIRECTIONNAV:
       if (slider.vars.directionNav) methods.directionNav.setup();
       // KEYBOARD:
       if (slider.vars.keyboard && ($(slider.containerSelector).length === 1 || slider.vars.multipleKeyboard)) {
         $(document).bind('keyup', function(event) {
           var keycode = event.keyCode;
           if (!slider.animating && (keycode === 39 || keycode === 37)) {
             var target = (keycode === 39) ? slider.getTarget('next') :
                          (keycode === 37) ? slider.getTarget('prev') : false;
             slider.flexAnimate(target, slider.vars.pauseOnAction);
           }
         });
       }
       // MOUSEWHEEL:
       if (slider.vars.mousewheel) {
         slider.bind('mousewheel', function(event, delta, deltaX, deltaY) {
           event.preventDefault();
           var target = (delta < 0) ? slider.getTarget('next') : slider.getTarget('prev');
           slider.flexAnimate(target, slider.vars.pauseOnAction);
         });
       }
       // PAUSEPLAY
       if (slider.vars.pausePlay) methods.pausePlay.setup();
       //PAUSE WHEN INVISIBLE
       if (slider.vars.slideshow && slider.vars.pauseInvisible) methods.pauseInvisible.init();
       // SLIDSESHOW
       if (slider.vars.slideshow) {
         if (slider.vars.pauseOnHover) {
           slider.hover(function() {
             if (!slider.manualPlay && !slider.manualPause) slider.pause();
           }, function() {
             if (!slider.manualPause && !slider.manualPlay && !slider.stopped) slider.play();
           });
         }
         // initialize animation
         //If we're visible, or we don't use PageVisibility API
         if(!slider.vars.pauseInvisible || !methods.pauseInvisible.isHidden()) {
           (slider.vars.initDelay > 0) ? slider.startTimeout = setTimeout(slider.play, slider.vars.initDelay) : slider.play();
         }
       }
       // ASNAV:
       if (asNav) methods.asNav.setup();
       // TOUCH
       if (touch && slider.vars.touch) methods.touch();
       // FADE&&SMOOTHHEIGHT || SLIDE:
       if (!fade || (fade && slider.vars.smoothHeight)) $(window).bind("resize orientationchange focus", methods.resize);
       slider.find("img").attr("draggable", "false");
       // API: start() Callback
       setTimeout(function(){
         slider.vars.start(slider);
       }, 200);
     },
     asNav: {
       setup: function() {
         slider.asNav = true;
         slider.animatingTo = Math.floor(slider.currentSlide/slider.move);
         slider.currentItem = slider.currentSlide;
         slider.slides.removeClass(namespace + "active-slide").eq(slider.currentItem).addClass(namespace + "active-slide");
         if(!msGesture){
             slider.slides.click(function(e){
               e.preventDefault();
               var $slide = $(this),
                   target = $slide.index();
               var posFromLeft = $slide.offset().left - $(slider).scrollLeft(); // Find position of slide relative to left of slider container
               if( posFromLeft <= 0 && $slide.hasClass( namespace + 'active-slide' ) ) {
                 slider.flexAnimate(slider.getTarget("prev"), true);
               } else if (!$(slider.vars.asNavFor).data('flexslider').animating && !$slide.hasClass(namespace + "active-slide")) {
                 slider.direction = (slider.currentItem < target) ? "next" : "prev";
                 slider.flexAnimate(target, slider.vars.pauseOnAction, false, true, true);
               }
             });
         }else{
             el._slider = slider;
             slider.slides.each(function (){
                 var that = this;
                 that._gesture = new MSGesture();
                 that._gesture.target = that;
                 that.addEventListener("MSPointerDown", function (e){
                     e.preventDefault();
                     if(e.currentTarget._gesture)
                         e.currentTarget._gesture.addPointer(e.pointerId);
                 }, false);
                 that.addEventListener("MSGestureTap", function (e){
                     e.preventDefault();
                     var $slide = $(this),
                         target = $slide.index();
                     if (!$(slider.vars.asNavFor).data('flexslider').animating && !$slide.hasClass('active')) {
                         slider.direction = (slider.currentItem < target) ? "next" : "prev";
                         slider.flexAnimate(target, slider.vars.pauseOnAction, false, true, true);
                     }
                 });
             });
         }
       }
     },
     controlNav: {
       setup: function() {
         if (!slider.manualControls) {
           methods.controlNav.setupPaging();
         } else { // MANUALCONTROLS:
           methods.controlNav.setupManual();
         }
       },
       setupPaging: function() {
         var type = (slider.vars.controlNav === "thumbnails") ? 'control-thumbs' : 'control-paging',
             j = 1,
             item,
             slide;
slider.controlNavScaffold = $('
    ');
             if (slider.pagingCount > 1) {
               for (var i = 0; i < slider.pagingCount; i++) {
                 slide = slider.slides.eq(i);
                 item = (slider.vars.controlNav === "thumbnails") ? '<img src="' + slide.attr( 'data-thumb' ) + '"/>' : '<a>' + j + '</a>';
                 if ( 'thumbnails' === slider.vars.controlNav && true === slider.vars.thumbCaptions ) {
                   var captn = slide.attr( 'data-thumbcaption' );
                   if (  != captn && undefined != captn ) item += '' + captn + '';
                 }
    
    slider.controlNavScaffold.append('
  1. ' + item + '</li>'); j++; } } // CONTROLSCONTAINER: (slider.controlsContainer) ? $(slider.controlsContainer).append(slider.controlNavScaffold) : slider.append(slider.controlNavScaffold); methods.controlNav.set(); methods.controlNav.active(); slider.controlNavScaffold.delegate('a, img', eventType, function(event) { event.preventDefault(); if (watchedEvent === "" || watchedEvent === event.type) { var $this = $(this), target = slider.controlNav.index($this); if (!$this.hasClass(namespace + 'active')) { slider.direction = (target > slider.currentSlide) ? "next" : "prev"; slider.flexAnimate(target, slider.vars.pauseOnAction); } } // setup flags to prevent event duplication if (watchedEvent === "") { watchedEvent = event.type; } methods.setToClearWatchedEvent(); }); }, setupManual: function() { slider.controlNav = slider.manualControls; methods.controlNav.active(); slider.controlNav.bind(eventType, function(event) { event.preventDefault(); if (watchedEvent === "" || watchedEvent === event.type) { var $this = $(this), target = slider.controlNav.index($this); if (!$this.hasClass(namespace + 'active')) { (target > slider.currentSlide) ? slider.direction = "next" : slider.direction = "prev"; slider.flexAnimate(target, slider.vars.pauseOnAction); } } // setup flags to prevent event duplication if (watchedEvent === "") { watchedEvent = event.type; } methods.setToClearWatchedEvent(); }); }, set: function() { var selector = (slider.vars.controlNav === "thumbnails") ? 'img' : 'a'; slider.controlNav = $('.' + namespace + 'control-nav li ' + selector, (slider.controlsContainer) ? slider.controlsContainer : slider); }, active: function() { slider.controlNav.removeClass(namespace + "active").eq(slider.animatingTo).addClass(namespace + "active"); }, update: function(action, pos) { if (slider.pagingCount > 1 && action === "add") { slider.controlNavScaffold.append($('
  2. <a>' + slider.count + '</a></li>')); } else if (slider.pagingCount === 1) { slider.controlNavScaffold.find('li').remove(); } else { slider.controlNav.eq(pos).closest('li').remove(); } methods.controlNav.set(); (slider.pagingCount > 1 && slider.pagingCount !== slider.controlNav.length) ? slider.update(pos, action) : methods.controlNav.active(); } }, directionNav: { setup: function() { var directionNavScaffold = $('
    • <a class="' + namespace + 'prev" href="#">' + slider.vars.prevText + '</a>
    • <a class="' + namespace + 'next" href="#">' + slider.vars.nextText + '</a>
    ');
             // CONTROLSCONTAINER:
             if (slider.controlsContainer) {
               $(slider.controlsContainer).append(directionNavScaffold);
               slider.directionNav = $('.' + namespace + 'direction-nav li a', slider.controlsContainer);
             } else {
               slider.append(directionNavScaffold);
               slider.directionNav = $('.' + namespace + 'direction-nav li a', slider);
             }
    
             methods.directionNav.update();
    
             slider.directionNav.bind(eventType, function(event) {
               event.preventDefault();
               var target;
    
               if (watchedEvent === "" || watchedEvent === event.type) {
                 target = ($(this).hasClass(namespace + 'next')) ? slider.getTarget('next') : slider.getTarget('prev');
                 slider.flexAnimate(target, slider.vars.pauseOnAction);
               }
    
               // setup flags to prevent event duplication
               if (watchedEvent === "") {
                 watchedEvent = event.type;
               }
               methods.setToClearWatchedEvent();
             });
           },
           update: function() {
             var disabledClass = namespace + 'disabled';
             if (slider.pagingCount === 1) {
               slider.directionNav.addClass(disabledClass).attr('tabindex', '-1');
             } else if (!slider.vars.animationLoop) {
               if (slider.animatingTo === 0) {
                 slider.directionNav.removeClass(disabledClass).filter('.' + namespace + "prev").addClass(disabledClass).attr('tabindex', '-1');
               } else if (slider.animatingTo === slider.last) {
                 slider.directionNav.removeClass(disabledClass).filter('.' + namespace + "next").addClass(disabledClass).attr('tabindex', '-1');
               } else {
                 slider.directionNav.removeClass(disabledClass).removeAttr('tabindex');
               }
             } else {
               slider.directionNav.removeClass(disabledClass).removeAttr('tabindex');
             }
           }
         },
         pausePlay: {
           setup: function() {
    
    var pausePlayScaffold = $('
    <a></a>
    ');
             // CONTROLSCONTAINER:
             if (slider.controlsContainer) {
               slider.controlsContainer.append(pausePlayScaffold);
               slider.pausePlay = $('.' + namespace + 'pauseplay a', slider.controlsContainer);
             } else {
               slider.append(pausePlayScaffold);
               slider.pausePlay = $('.' + namespace + 'pauseplay a', slider);
             }
    
             methods.pausePlay.update((slider.vars.slideshow) ? namespace + 'pause' : namespace + 'play');
    
             slider.pausePlay.bind(eventType, function(event) {
               event.preventDefault();
    
               if (watchedEvent === "" || watchedEvent === event.type) {
                 if ($(this).hasClass(namespace + 'pause')) {
                   slider.manualPause = true;
                   slider.manualPlay = false;
                   slider.pause();
                 } else {
                   slider.manualPause = false;
                   slider.manualPlay = true;
                   slider.play();
                 }
               }
    
               // setup flags to prevent event duplication
               if (watchedEvent === "") {
                 watchedEvent = event.type;
               }
               methods.setToClearWatchedEvent();
             });
           },
           update: function(state) {
             (state === "play") ? slider.pausePlay.removeClass(namespace + 'pause').addClass(namespace + 'play').html(slider.vars.playText) : slider.pausePlay.removeClass(namespace + 'play').addClass(namespace + 'pause').html(slider.vars.pauseText);
           }
         },
         touch: function() {
           var startX,
             startY,
             offset,
             cwidth,
             dx,
             startT,
             scrolling = false,
             localX = 0,
             localY = 0,
             accDx = 0;
    
           if(!msGesture){
               el.addEventListener('touchstart', onTouchStart, false);
    
               function onTouchStart(e) {
                 if (slider.animating) {
                   e.preventDefault();
                 } else if ( ( window.navigator.msPointerEnabled ) || e.touches.length === 1 ) {
                   slider.pause();
                   // CAROUSEL:
                   cwidth = (vertical) ? slider.h : slider. w;
                   startT = Number(new Date());
                   // CAROUSEL:
    
                   // Local vars for X and Y points.
                   localX = e.touches[0].pageX;
                   localY = e.touches[0].pageY;
    
                   offset = (carousel && reverse && slider.animatingTo === slider.last) ? 0 :
                            (carousel && reverse) ? slider.limit - (((slider.itemW + slider.vars.itemMargin) * slider.move) * slider.animatingTo) :
                            (carousel && slider.currentSlide === slider.last) ? slider.limit :
                            (carousel) ? ((slider.itemW + slider.vars.itemMargin) * slider.move) * slider.currentSlide :
                            (reverse) ? (slider.last - slider.currentSlide + slider.cloneOffset) * cwidth : (slider.currentSlide + slider.cloneOffset) * cwidth;
                   startX = (vertical) ? localY : localX;
                   startY = (vertical) ? localX : localY;
    
                   el.addEventListener('touchmove', onTouchMove, false);
                   el.addEventListener('touchend', onTouchEnd, false);
                 }
               }
    
               function onTouchMove(e) {
                 // Local vars for X and Y points.
    
                 localX = e.touches[0].pageX;
                 localY = e.touches[0].pageY;
    
                 dx = (vertical) ? startX - localY : startX - localX;
                 scrolling = (vertical) ? (Math.abs(dx) < Math.abs(localX - startY)) : (Math.abs(dx) < Math.abs(localY - startY));
    
                 var fxms = 500;
    
                 if ( ! scrolling || Number( new Date() ) - startT > fxms ) {
                   e.preventDefault();
                   if (!fade && slider.transitions) {
                     if (!slider.vars.animationLoop) {
                       dx = dx/((slider.currentSlide === 0 && dx < 0 || slider.currentSlide === slider.last && dx > 0) ? (Math.abs(dx)/cwidth+2) : 1);
                     }
                     slider.setProps(offset + dx, "setTouch");
                   }
                 }
               }
    
               function onTouchEnd(e) {
                 // finish the touch by undoing the touch session
                 el.removeEventListener('touchmove', onTouchMove, false);
    
                 if (slider.animatingTo === slider.currentSlide && !scrolling && !(dx === null)) {
                   var updateDx = (reverse) ? -dx : dx,
                       target = (updateDx > 0) ? slider.getTarget('next') : slider.getTarget('prev');
    
                   if (slider.canAdvance(target) && (Number(new Date()) - startT < 550 && Math.abs(updateDx) > 50 || Math.abs(updateDx) > cwidth/2)) {
                     slider.flexAnimate(target, slider.vars.pauseOnAction);
                   } else {
                     if (!fade) slider.flexAnimate(slider.currentSlide, slider.vars.pauseOnAction, true);
                   }
                 }
                 el.removeEventListener('touchend', onTouchEnd, false);
    
                 startX = null;
                 startY = null;
                 dx = null;
                 offset = null;
               }
           }else{
               el.style.msTouchAction = "none";
               el._gesture = new MSGesture();
               el._gesture.target = el;
               el.addEventListener("MSPointerDown", onMSPointerDown, false);
               el._slider = slider;
               el.addEventListener("MSGestureChange", onMSGestureChange, false);
               el.addEventListener("MSGestureEnd", onMSGestureEnd, false);
    
               function onMSPointerDown(e){
                   e.stopPropagation();
                   if (slider.animating) {
                       e.preventDefault();
                   }else{
                       slider.pause();
                       el._gesture.addPointer(e.pointerId);
                       accDx = 0;
                       cwidth = (vertical) ? slider.h : slider. w;
                       startT = Number(new Date());
                       // CAROUSEL:
    
                       offset = (carousel && reverse && slider.animatingTo === slider.last) ? 0 :
                           (carousel && reverse) ? slider.limit - (((slider.itemW + slider.vars.itemMargin) * slider.move) * slider.animatingTo) :
                               (carousel && slider.currentSlide === slider.last) ? slider.limit :
                                   (carousel) ? ((slider.itemW + slider.vars.itemMargin) * slider.move) * slider.currentSlide :
                                       (reverse) ? (slider.last - slider.currentSlide + slider.cloneOffset) * cwidth : (slider.currentSlide + slider.cloneOffset) * cwidth;
                   }
               }
    
               function onMSGestureChange(e) {
                   e.stopPropagation();
                   var slider = e.target._slider;
                   if(!slider){
                       return;
                   }
                   var transX = -e.translationX,
                       transY = -e.translationY;
    
                   //Accumulate translations.
                   accDx = accDx + ((vertical) ? transY : transX);
                   dx = accDx;
                   scrolling = (vertical) ? (Math.abs(accDx) < Math.abs(-transX)) : (Math.abs(accDx) < Math.abs(-transY));
    
                   if(e.detail === e.MSGESTURE_FLAG_INERTIA){
                       setImmediate(function (){
                           el._gesture.stop();
                       });
    
                       return;
                   }
    
                   if (!scrolling || Number(new Date()) - startT > 500) {
                       e.preventDefault();
                       if (!fade && slider.transitions) {
                           if (!slider.vars.animationLoop) {
                               dx = accDx / ((slider.currentSlide === 0 && accDx < 0 || slider.currentSlide === slider.last && accDx > 0) ? (Math.abs(accDx) / cwidth + 2) : 1);
                           }
                           slider.setProps(offset + dx, "setTouch");
                       }
                   }
               }
    
               function onMSGestureEnd(e) {
                   e.stopPropagation();
                   var slider = e.target._slider;
                   if(!slider){
                       return;
                   }
                   if (slider.animatingTo === slider.currentSlide && !scrolling && !(dx === null)) {
                       var updateDx = (reverse) ? -dx : dx,
                           target = (updateDx > 0) ? slider.getTarget('next') : slider.getTarget('prev');
    
                       if (slider.canAdvance(target) && (Number(new Date()) - startT < 550 && Math.abs(updateDx) > 50 || Math.abs(updateDx) > cwidth/2)) {
                           slider.flexAnimate(target, slider.vars.pauseOnAction);
                       } else {
                           if (!fade) slider.flexAnimate(slider.currentSlide, slider.vars.pauseOnAction, true);
                       }
                   }
    
                   startX = null;
                   startY = null;
                   dx = null;
                   offset = null;
                   accDx = 0;
               }
           }
         },
         resize: function() {
           if (!slider.animating && slider.is(':visible')) {
             if (!carousel) slider.doMath();
    
             if (fade) {
               // SMOOTH HEIGHT:
               methods.smoothHeight();
             } else if (carousel) { //CAROUSEL:
               slider.slides.width(slider.computedW);
               slider.update(slider.pagingCount);
               slider.setProps();
             }
             else if (vertical) { //VERTICAL:
               slider.viewport.height(slider.h);
               slider.setProps(slider.h, "setTotal");
             } else {
               // SMOOTH HEIGHT:
               if (slider.vars.smoothHeight) methods.smoothHeight();
               slider.newSlides.width(slider.computedW);
               slider.setProps(slider.computedW, "setTotal");
             }
           }
         },
         smoothHeight: function(dur) {
           if (!vertical || fade) {
             var $obj = (fade) ? slider : slider.viewport;
             (dur) ? $obj.animate({"height": slider.slides.eq(slider.animatingTo).height()}, dur) : $obj.height(slider.slides.eq(slider.animatingTo).height());
           }
         },
         sync: function(action) {
           var $obj = $(slider.vars.sync).data("flexslider"),
               target = slider.animatingTo;
    
           switch (action) {
             case "animate": $obj.flexAnimate(target, slider.vars.pauseOnAction, false, true); break;
             case "play": if (!$obj.playing && !$obj.asNav) { $obj.play(); } break;
             case "pause": $obj.pause(); break;
           }
         },
         pauseInvisible: {
           visProp: null,
           init: function() {
             var prefixes = ['webkit','moz','ms','o'];
    
             if ('hidden' in document) return 'hidden';
             for (var i = 0; i < prefixes.length; i++) {
               if ((prefixes[i] + 'Hidden') in document) 
               methods.pauseInvisible.visProp = prefixes[i] + 'Hidden';
             }
             if (methods.pauseInvisible.visProp) {
               var evtname = methods.pauseInvisible.visProp.replace(/[H|h]idden/,) + 'visibilitychange';
               document.addEventListener(evtname, function() {
                 if (methods.pauseInvisible.isHidden()) {
                   if(slider.startTimeout) clearTimeout(slider.startTimeout); //If clock is ticking, stop timer and prevent from starting while invisible
                   else slider.pause(); //Or just pause
                 }
                 else {
                   if(slider.started) slider.play(); //Initiated before, just play
                   else (slider.vars.initDelay > 0) ? setTimeout(slider.play, slider.vars.initDelay) : slider.play(); //Didn't init before: simply init or wait for it
                 }
               });
             }       
           },
           isHidden: function() {
             return document[methods.pauseInvisible.visProp] || false;
           }
         },
         setToClearWatchedEvent: function() {
           clearTimeout(watchedEventClearTimer);
           watchedEventClearTimer = setTimeout(function() {
             watchedEvent = "";
           }, 3000);
         }
       }
    
       // public methods
       slider.flexAnimate = function(target, pause, override, withSync, fromNav) {
         if (!slider.vars.animationLoop && target !== slider.currentSlide) {
           slider.direction = (target > slider.currentSlide) ? "next" : "prev";
         }
    
         if (asNav && slider.pagingCount === 1) slider.direction = (slider.currentItem < target) ? "next" : "prev";
    
         if (!slider.animating && (slider.canAdvance(target, fromNav) || override) && slider.is(":visible")) {
           if (asNav && withSync) {
             var master = $(slider.vars.asNavFor).data('flexslider');
             slider.atEnd = target === 0 || target === slider.count - 1;
             master.flexAnimate(target, true, false, true, fromNav);
             slider.direction = (slider.currentItem < target) ? "next" : "prev";
             master.direction = slider.direction;
    
             if (Math.ceil((target + 1)/slider.visible) - 1 !== slider.currentSlide && target !== 0) {
               slider.currentItem = target;
               slider.slides.removeClass(namespace + "active-slide").eq(target).addClass(namespace + "active-slide");
               target = Math.floor(target/slider.visible);
             } else {
               slider.currentItem = target;
               slider.slides.removeClass(namespace + "active-slide").eq(target).addClass(namespace + "active-slide");
               return false;
             }
           }
    
           slider.animating = true;
           slider.animatingTo = target;
    
           // SLIDESHOW:
           if (pause) slider.pause();
    
           // API: before() animation Callback
           slider.vars.before(slider);
    
           // SYNC:
           if (slider.syncExists && !fromNav) methods.sync("animate");
    
           // CONTROLNAV
           if (slider.vars.controlNav) methods.controlNav.active();
    
           // !CAROUSEL:
           // CANDIDATE: slide active class (for add/remove slide)
           if (!carousel) slider.slides.removeClass(namespace + 'active-slide').eq(target).addClass(namespace + 'active-slide');
    
           // INFINITE LOOP:
           // CANDIDATE: atEnd
           slider.atEnd = target === 0 || target === slider.last;
    
           // DIRECTIONNAV:
           if (slider.vars.directionNav) methods.directionNav.update();
    
           if (target === slider.last) {
             // API: end() of cycle Callback
             slider.vars.end(slider);
             // SLIDESHOW && !INFINITE LOOP:
             if (!slider.vars.animationLoop) slider.pause();
           }
    
           // SLIDE:
           if (!fade) {
             var dimension = (vertical) ? slider.slides.filter(':first').height() : slider.computedW,
                 margin, slideString, calcNext;
    
             // INFINITE LOOP / REVERSE:
             if (carousel) {
               //margin = (slider.vars.itemWidth > slider.w) ? slider.vars.itemMargin * 2 : slider.vars.itemMargin;
               margin = slider.vars.itemMargin;
               calcNext = ((slider.itemW + margin) * slider.move) * slider.animatingTo;
               slideString = (calcNext > slider.limit && slider.visible !== 1) ? slider.limit : calcNext;
             } else if (slider.currentSlide === 0 && target === slider.count - 1 && slider.vars.animationLoop && slider.direction !== "next") {
               slideString = (reverse) ? (slider.count + slider.cloneOffset) * dimension : 0;
             } else if (slider.currentSlide === slider.last && target === 0 && slider.vars.animationLoop && slider.direction !== "prev") {
               slideString = (reverse) ? 0 : (slider.count + 1) * dimension;
             } else {
               slideString = (reverse) ? ((slider.count - 1) - target + slider.cloneOffset) * dimension : (target + slider.cloneOffset) * dimension;
             }
             slider.setProps(slideString, "", slider.vars.animationSpeed);
             if (slider.transitions) {
               if (!slider.vars.animationLoop || !slider.atEnd) {
                 slider.animating = false;
                 slider.currentSlide = slider.animatingTo;
               }
               slider.container.unbind("webkitTransitionEnd transitionend");
               slider.container.bind("webkitTransitionEnd transitionend", function() {
                 slider.wrapup(dimension);
               });
             } else {
               slider.container.animate(slider.args, slider.vars.animationSpeed, slider.vars.easing, function(){
                 slider.wrapup(dimension);
               });
             }
           } else { // FADE:
             if (!touch) {
               //slider.slides.eq(slider.currentSlide).fadeOut(slider.vars.animationSpeed, slider.vars.easing);
               //slider.slides.eq(target).fadeIn(slider.vars.animationSpeed, slider.vars.easing, slider.wrapup);
    
               slider.slides.eq(slider.currentSlide).css({"zIndex": 1}).animate({"opacity": 0}, slider.vars.animationSpeed, slider.vars.easing);
               slider.slides.eq(target).css({"zIndex": 2}).animate({"opacity": 1}, slider.vars.animationSpeed, slider.vars.easing, slider.wrapup);
    
             } else {
               slider.slides.eq(slider.currentSlide).css({ "opacity": 0, "zIndex": 1 });
               slider.slides.eq(target).css({ "opacity": 1, "zIndex": 2 });
               slider.wrapup(dimension);
             }
           }
           // SMOOTH HEIGHT:
           if (slider.vars.smoothHeight) methods.smoothHeight(slider.vars.animationSpeed);
         }
       }
       slider.wrapup = function(dimension) {
         // SLIDE:
         if (!fade && !carousel) {
           if (slider.currentSlide === 0 && slider.animatingTo === slider.last && slider.vars.animationLoop) {
             slider.setProps(dimension, "jumpEnd");
           } else if (slider.currentSlide === slider.last && slider.animatingTo === 0 && slider.vars.animationLoop) {
             slider.setProps(dimension, "jumpStart");
           }
         }
         slider.animating = false;
         slider.currentSlide = slider.animatingTo;
         // API: after() animation Callback
         slider.vars.after(slider);
       }
    
       // SLIDESHOW:
       slider.animateSlides = function() {
         if (!slider.animating && focused ) slider.flexAnimate(slider.getTarget("next"));
       }
       // SLIDESHOW:
       slider.pause = function() {
         clearInterval(slider.animatedSlides);
         slider.animatedSlides = null;
         slider.playing = false;
         // PAUSEPLAY:
         if (slider.vars.pausePlay) methods.pausePlay.update("play");
         // SYNC:
         if (slider.syncExists) methods.sync("pause");
       }
       // SLIDESHOW:
       slider.play = function() {
         if (slider.playing) clearInterval(slider.animatedSlides);
         slider.animatedSlides = slider.animatedSlides || setInterval(slider.animateSlides, slider.vars.slideshowSpeed);
         slider.started = slider.playing = true;
         // PAUSEPLAY:
         if (slider.vars.pausePlay) methods.pausePlay.update("pause");
         // SYNC:
         if (slider.syncExists) methods.sync("play");
       }
       // STOP:
       slider.stop = function () {
         slider.pause();
         slider.stopped = true;
       }
       slider.canAdvance = function(target, fromNav) {
         // ASNAV:
         var last = (asNav) ? slider.pagingCount - 1 : slider.last;
         return (fromNav) ? true :
                (asNav && slider.currentItem === slider.count - 1 && target === 0 && slider.direction === "prev") ? true :
                (asNav && slider.currentItem === 0 && target === slider.pagingCount - 1 && slider.direction !== "next") ? false :
                (target === slider.currentSlide && !asNav) ? false :
                (slider.vars.animationLoop) ? true :
                (slider.atEnd && slider.currentSlide === 0 && target === last && slider.direction !== "next") ? false :
                (slider.atEnd && slider.currentSlide === last && target === 0 && slider.direction === "next") ? false :
                true;
       }
       slider.getTarget = function(dir) {
         slider.direction = dir;
         if (dir === "next") {
           return (slider.currentSlide === slider.last) ? 0 : slider.currentSlide + 1;
         } else {
           return (slider.currentSlide === 0) ? slider.last : slider.currentSlide - 1;
         }
       }
    
       // SLIDE:
       slider.setProps = function(pos, special, dur) {
         var target = (function() {
           var posCheck = (pos) ? pos : ((slider.itemW + slider.vars.itemMargin) * slider.move) * slider.animatingTo,
               posCalc = (function() {
                 if (carousel) {
                   return (special === "setTouch") ? pos :
                          (reverse && slider.animatingTo === slider.last) ? 0 :
                          (reverse) ? slider.limit - (((slider.itemW + slider.vars.itemMargin) * slider.move) * slider.animatingTo) :
                          (slider.animatingTo === slider.last) ? slider.limit : posCheck;
                 } else {
                   switch (special) {
                     case "setTotal": return (reverse) ? ((slider.count - 1) - slider.currentSlide + slider.cloneOffset) * pos : (slider.currentSlide + slider.cloneOffset) * pos;
                     case "setTouch": return (reverse) ? pos : pos;
                     case "jumpEnd": return (reverse) ? pos : slider.count * pos;
                     case "jumpStart": return (reverse) ? slider.count * pos : pos;
                     default: return pos;
                   }
                 }
               }());
    
               return (posCalc * -1) + "px";
             }());
    
         if (slider.transitions) {
           target = (vertical) ? "translate3d(0," + target + ",0)" : "translate3d(" + target + ",0,0)";
           dur = (dur !== undefined) ? (dur/1000) + "s" : "0s";
           slider.container.css("-" + slider.pfx + "-transition-duration", dur);
         }
    
         slider.args[slider.prop] = target;
         if (slider.transitions || dur === undefined) slider.container.css(slider.args);
       }
    
       slider.setup = function(type) {
         // SLIDE:
         if (!fade) {
           var sliderOffset, arr;
    
           if (type === "init") {
    
    slider.viewport = $('
    ').css({"overflow": "hidden", "position": "relative"}).appendTo(slider).append(slider.container);
             // INFINITE LOOP:
             slider.cloneCount = 0;
             slider.cloneOffset = 0;
             // REVERSE:
             if (reverse) {
               arr = $.makeArray(slider.slides).reverse();
               slider.slides = $(arr);
               slider.container.empty().append(slider.slides);
             }
           }
           // INFINITE LOOP && !CAROUSEL:
           if (slider.vars.animationLoop && !carousel) {
             slider.cloneCount = 2;
             slider.cloneOffset = 1;
             // clear out old clones
             if (type !== "init") slider.container.find('.clone').remove();
             slider.container.append(slider.slides.first().clone().addClass('clone').attr('aria-hidden', 'true')).prepend(slider.slides.last().clone().addClass('clone').attr('aria-hidden', 'true'));
           }
           slider.newSlides = $(slider.vars.selector, slider);
    
           sliderOffset = (reverse) ? slider.count - 1 - slider.currentSlide + slider.cloneOffset : slider.currentSlide + slider.cloneOffset;
           // VERTICAL:
           if (vertical && !carousel) {
             slider.container.height((slider.count + slider.cloneCount) * 200 + "%").css("position", "absolute").width("100%");
             setTimeout(function(){
               slider.newSlides.css({"display": "block"});
               slider.doMath();
               slider.viewport.height(slider.h);
               slider.setProps(sliderOffset * slider.h, "init");
             }, (type === "init") ? 100 : 0);
           } else {
             slider.container.width((slider.count + slider.cloneCount) * 200 + "%");
             slider.setProps(sliderOffset * slider.computedW, "init");
             setTimeout(function(){
               slider.doMath();
               slider.newSlides.css({"width": slider.computedW, "float": "left", "display": "block"});
               // SMOOTH HEIGHT:
               if (slider.vars.smoothHeight) methods.smoothHeight();
             }, (type === "init") ? 100 : 0);
           }
         } else { // FADE:
           slider.slides.css({"width": "100%", "float": "left", "marginRight": "-100%", "position": "relative"});
           if (type === "init") {
             if (!touch) {
               //slider.slides.eq(slider.currentSlide).fadeIn(slider.vars.animationSpeed, slider.vars.easing);
               slider.slides.css({ "opacity": 0, "display": "block", "zIndex": 1 }).eq(slider.currentSlide).css({"zIndex": 2}).animate({"opacity": 1},slider.vars.animationSpeed,slider.vars.easing);
             } else {
               slider.slides.css({ "opacity": 0, "display": "block", "webkitTransition": "opacity " + slider.vars.animationSpeed / 1000 + "s ease", "zIndex": 1 }).eq(slider.currentSlide).css({ "opacity": 1, "zIndex": 2});
             }
           }
           // SMOOTH HEIGHT:
           if (slider.vars.smoothHeight) methods.smoothHeight();
         }
         // !CAROUSEL:
         // CANDIDATE: active slide
         if (!carousel) slider.slides.removeClass(namespace + "active-slide").eq(slider.currentSlide).addClass(namespace + "active-slide");
       }
    


       slider.doMath = function() {
         var slide = slider.slides.first(),
             slideMargin = slider.vars.itemMargin,
             minItems = slider.vars.minItems,
             maxItems = slider.vars.maxItems;
    
         slider.w = (slider.viewport===undefined) ? slider.width() : slider.viewport.width();
         slider.h = slide.height();
         slider.boxPadding = slide.outerWidth() - slide.width();
    
         // CAROUSEL:
         if (carousel) {
           slider.itemT = slider.vars.itemWidth + slideMargin;
           slider.minW = (minItems) ? minItems * slider.itemT : slider.w;
           slider.maxW = (maxItems) ? (maxItems * slider.itemT) - slideMargin : slider.w;
           slider.itemW = (slider.minW > slider.w) ? (slider.w - (slideMargin * (minItems - 1)))/minItems :
                          (slider.maxW < slider.w) ? (slider.w - (slideMargin * (maxItems - 1)))/maxItems :
                          (slider.vars.itemWidth > slider.w) ? slider.w : slider.vars.itemWidth;
    
           slider.visible = Math.floor(slider.w/(slider.itemW));
           slider.move = (slider.vars.move > 0 && slider.vars.move < slider.visible ) ? slider.vars.move : slider.visible;
           slider.pagingCount = Math.ceil(((slider.count - slider.visible)/slider.move) + 1);
           slider.last =  slider.pagingCount - 1;
           slider.limit = (slider.pagingCount === 1) ? 0 :
                          (slider.vars.itemWidth > slider.w) ? (slider.itemW * (slider.count - 1)) + (slideMargin * (slider.count - 1)) : ((slider.itemW + slideMargin) * slider.count) - slider.w - slideMargin;
         } else {
           slider.itemW = slider.w;
           slider.pagingCount = slider.count;
           slider.last = slider.count - 1;
         }
         slider.computedW = slider.itemW - slider.boxPadding;
       }
    


       slider.update = function(pos, action) {
         slider.doMath();
    
         // update currentSlide and slider.animatingTo if necessary
         if (!carousel) {
           if (pos < slider.currentSlide) {
             slider.currentSlide += 1;
           } else if (pos <= slider.currentSlide && pos !== 0) {
             slider.currentSlide -= 1;
           }
           slider.animatingTo = slider.currentSlide;
         }
    
         // update controlNav
         if (slider.vars.controlNav && !slider.manualControls) {
           if ((action === "add" && !carousel) || slider.pagingCount > slider.controlNav.length) {
             methods.controlNav.update("add");
           } else if ((action === "remove" && !carousel) || slider.pagingCount < slider.controlNav.length) {
             if (carousel && slider.currentSlide > slider.last) {
               slider.currentSlide -= 1;
               slider.animatingTo -= 1;
             }
             methods.controlNav.update("remove", slider.last);
           }
         }
         // update directionNav
         if (slider.vars.directionNav) methods.directionNav.update();
    
       }
    
       slider.addSlide = function(obj, pos) {
         var $obj = $(obj);
    
         slider.count += 1;
         slider.last = slider.count - 1;
    
         // append new slide
         if (vertical && reverse) {
           (pos !== undefined) ? slider.slides.eq(slider.count - pos).after($obj) : slider.container.prepend($obj);
         } else {
           (pos !== undefined) ? slider.slides.eq(pos).before($obj) : slider.container.append($obj);
         }
    
         // update currentSlide, animatingTo, controlNav, and directionNav
         slider.update(pos, "add");
    
         // update slider.slides
         slider.slides = $(slider.vars.selector + ':not(.clone)', slider);
         // re-setup the slider to accomdate new slide
         slider.setup();
    
         //FlexSlider: added() Callback
         slider.vars.added(slider);
       }
       slider.removeSlide = function(obj) {
         var pos = (isNaN(obj)) ? slider.slides.index($(obj)) : obj;
    
         // update count
         slider.count -= 1;
         slider.last = slider.count - 1;
    
         // remove slide
         if (isNaN(obj)) {
           $(obj, slider.slides).remove();
         } else {
           (vertical && reverse) ? slider.slides.eq(slider.last).remove() : slider.slides.eq(obj).remove();
         }
    
         // update currentSlide, animatingTo, controlNav, and directionNav
         slider.doMath();
         slider.update(pos, "remove");
    
         // update slider.slides
         slider.slides = $(slider.vars.selector + ':not(.clone)', slider);
         // re-setup the slider to accomdate new slide
         slider.setup();
    
         // FlexSlider: removed() Callback
         slider.vars.removed(slider);
       }
    
       //FlexSlider: Initialize
       methods.init();
     }
    
     // Ensure the slider isn't focussed if the window loses focus.
     $( window ).blur( function ( e ) {
       focused = false;
     }).focus( function ( e ) {
       focused = true;
     });
    
     //FlexSlider: Default Settings
     $.flexslider.defaults = {
       namespace: "flex-",             //{NEW} String: Prefix string attached to the class of every element generated by the plugin
       selector: ".slides > li",       //{NEW} Selector: Must match a simple pattern. '{container} > {slide}' -- Ignore pattern at your own peril
       animation: "fade",              //String: Select your animation type, "fade" or "slide"
       easing: "swing",                //{NEW} String: Determines the easing method used in jQuery transitions. jQuery easing plugin is supported!
       direction: "horizontal",        //String: Select the sliding direction, "horizontal" or "vertical"
       reverse: false,                 //{NEW} Boolean: Reverse the animation direction
       animationLoop: true,            //Boolean: Should the animation loop? If false, directionNav will received "disable" classes at either end
       smoothHeight: false,            //{NEW} Boolean: Allow height of the slider to animate smoothly in horizontal mode
       startAt: 0,                     //Integer: The slide that the slider should start on. Array notation (0 = first slide)
       slideshow: true,                //Boolean: Animate slider automatically
       slideshowSpeed: 7000,           //Integer: Set the speed of the slideshow cycling, in milliseconds
       animationSpeed: 600,            //Integer: Set the speed of animations, in milliseconds
       initDelay: 0,                   //{NEW} Integer: Set an initialization delay, in milliseconds
       randomize: false,               //Boolean: Randomize slide order
       thumbCaptions: false,           //Boolean: Whether or not to put captions on thumbnails when using the "thumbnails" controlNav.
    
       // Usability features
       pauseOnAction: true,            //Boolean: Pause the slideshow when interacting with control elements, highly recommended.
       pauseOnHover: true,            //Boolean: Pause the slideshow when hovering over slider, then resume when no longer hovering
       pauseInvisible: true,   		//{NEW} Boolean: Pause the slideshow when tab is invisible, resume when visible. Provides better UX, lower CPU usage.
       useCSS: true,                   //{NEW} Boolean: Slider will use CSS3 transitions if available
       touch: true,                    //{NEW} Boolean: Allow touch swipe navigation of the slider on touch-enabled devices
       video: false,                   //{NEW} Boolean: If using video in the slider, will prevent CSS3 3D Transforms to avoid graphical glitches
    
       // Primary Controls
       controlNav: true,               //Boolean: Create navigation for paging control of each clide? Note: Leave true for manualControls usage
       directionNav: true,             //Boolean: Create navigation for previous/next navigation? (true/false)
       prevText: "Previous",           //String: Set the text for the "previous" directionNav item
       nextText: "Next",               //String: Set the text for the "next" directionNav item
    
       // Secondary Navigation
       keyboard: true,                 //Boolean: Allow slider navigating via keyboard left/right keys
       multipleKeyboard: false,        //{NEW} Boolean: Allow keyboard navigation to affect multiple sliders. Default behavior cuts out keyboard navigation with more than one slider present.
       mousewheel: true,              //{UPDATED} Boolean: Requires jquery.mousewheel.js (https://github.com/brandonaaron/jquery-mousewheel) - Allows slider navigating via mousewheel
       pausePlay: false,               //Boolean: Create pause/play dynamic element
       pauseText: "Pause",             //String: Set the text for the "pause" pausePlay item
       playText: "Play",               //String: Set the text for the "play" pausePlay item
    
       // Special properties
       controlsContainer: "",          //{UPDATED} jQuery Object/Selector: Declare which container the navigation elements should be appended too. Default container is the FlexSlider element. Example use would be $(".flexslider-container"). Property is ignored if given element is not found.
       manualControls: "",             //{UPDATED} jQuery Object/Selector: Declare custom control navigation. Examples would be $(".flex-control-nav li") or "#tabs-nav li img", etc. The number of elements in your controlNav should match the number of slides/tabs.
       sync: "",                       //{NEW} Selector: Mirror the actions performed on this slider with another slider. Use with care.
       asNavFor: "",                   //{NEW} Selector: Internal property exposed for turning the slider into a thumbnail navigation for another slider
    
       // Carousel Options
       itemWidth: 0,                   //{NEW} Integer: Box-model width of individual carousel items, including horizontal borders and padding.
       itemMargin: 0,                  //{NEW} Integer: Margin between carousel items.
       minItems: 1,                    //{NEW} Integer: Minimum number of carousel items that should be visible. Items will resize fluidly when below this.
       maxItems: 0,                    //{NEW} Integer: Maxmimum number of carousel items that should be visible. Items will resize fluidly when above this limit.
       move: 0,                        //{NEW} Integer: Number of carousel items that should move on animation. If 0, slider will move all visible items.
       allowOneSlide: true,           //{NEW} Boolean: Whether or not to allow a slider comprised of a single slide
    
       // Callback API
       start: function(){},            //Callback: function(slider) - Fires when the slider loads the first slide
       before: function(){},           //Callback: function(slider) - Fires asynchronously with each slider animation
       after: function(){},            //Callback: function(slider) - Fires after each slider animation completes
       end: function(){},              //Callback: function(slider) - Fires when the slider reaches the last slide (asynchronous)
       added: function(){},            //{NEW} Callback: function(slider) - Fires after a slide is added
       removed: function(){}           //{NEW} Callback: function(slider) - Fires after a slide is removed
     }
    


     //FlexSlider: Plugin Function
     $.fn.flexslider = function(options) {
       if (options === undefined) options = {};
    
       if (typeof options === "object") {
         return this.each(function() {
           var $this = $(this),
               selector = (options.selector) ? options.selector : ".slides > li",
               $slides = $this.find(selector);
    
         if ( ( $slides.length === 1 && options.allowOneSlide === true ) || $slides.length === 0 ) {
             $slides.fadeIn(400);
             if (options.start) options.start($this);
           } else if ($this.data('flexslider') === undefined) {
             new $.flexslider(this, options);
           }
         });
       } else {
         // Helper strings to quickly perform functions on the slider
         var $slider = $(this).data('flexslider');
         switch (options) {
           case "play": $slider.play(); break;
           case "pause": $slider.pause(); break;
           case "stop": $slider.stop(); break;
           case "next": $slider.flexAnimate($slider.getTarget("next"), true); break;
           case "prev":
           case "previous": $slider.flexAnimate($slider.getTarget("prev"), true); break;
           default: if (typeof options === "number") $slider.flexAnimate(options, true);
         }
       }
     }
    

    })(jQuery);