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Edit File: jquery.flexslider.js

/*
 * jQuery FlexSlider v2.7.2
 * Copyright 2012 WooThemes
 * Contributing Author: Tyler Smith
 */
;
(function ($) {

var focused = true;

// When wishing to use jQuery transitions, we replicate them with CSS3's transition-timing-function instead
  // Default options provided by jQuery are "swing" and "linear"; jQuery easing plugin methods: https://easings.net/
  // We do NOT support easeInElastic, easeOutElastic, easeInOutElastic, easeInBounce, easeOutBounce, and easeInOutBounce
  var easings = {
    swing:  'cubic-bezier(.02, .01, .47, 1)', // https://stackoverflow.com/a/9245729
    linear: 'linear',

easeInQuad:     'cubic-bezier(0.11, 0, 0.5, 0)',  // https://easings.net/#easeInQuad
    easeOutQuad:    'cubic-bezier(0.5, 1, 0.89, 1)',  // https://easings.net/#easeOutQuad
    easeInOutQuad:  'cubic-bezier(0.45, 0, 0.55, 1)', // https://easings.net/#easeInOutQuad

easeInCubic:    'cubic-bezier(0.32, 0, 0.67, 0)', // https://easings.net/#easeInCubic
    easeOutCubic:   'cubic-bezier(0.33, 1, 0.68, 1)', // https://easings.net/#easeOutCubic
    easeInOutCubic: 'cubic-bezier(0.65, 0, 0.35, 1)', // https://easings.net/#easeInOutCubic

easeInQuart:    'cubic-bezier(0.5, 0, 0.75, 0)',  // https://easings.net/#easeInQuart
    easeOutQuart:   'cubic-bezier(0.25, 1, 0.5, 1)',  // https://easings.net/#easeOutQuart
    easeInOutQuart: 'cubic-bezier(0.76, 0, 0.24, 1)', // https://easings.net/#easeInOutQuart

easeInQuint:    'cubic-bezier(0.64, 0, 0.78, 0)', // https://easings.net/#easeInQuint
    easeOutQuint:   'cubic-bezier(0.22, 1, 0.36, 1)', // https://easings.net/#easeOutQuint
    easeInOutQuint: 'cubic-bezier(0.83, 0, 0.17, 1)', // https://easings.net/#easeInOutQuint

easeInSine:     'cubic-bezier(0.12, 0, 0.39, 0)', // https://easings.net/#easeInSine
    easeOutSine:    'cubic-bezier(0.61, 1, 0.88, 1)', // https://easings.net/#easeOutSine
    easeInOutSine:  'cubic-bezier(0.37, 0, 0.63, 1)', // https://easings.net/#easeInOutSine

easeInExpo:     'cubic-bezier(0.7, 0, 0.84, 0)',  // https://easings.net/#easeInExpo
    easeOutExpo:    'cubic-bezier(0.16, 1, 0.3, 1)',  // https://easings.net/#easeOutExpo
    easeInOutExpo:  'cubic-bezier(0.87, 0, 0.13, 1)', // https://easings.net/#easeInOutExpo

easeInCirc:     'cubic-bezier(0.55, 0, 1, 0.45)', // https://easings.net/#easeInCirc
    easeOutCirc:    'cubic-bezier(0, 0.55, 0.45, 1)', // https://easings.net/#easeOutCirc
    easeInOutCirc:  'cubic-bezier(0.85, 0, 0.15, 1)', // https://easings.net/#easeInOutCirc

easeInBack:     'cubic-bezier(0.36, 0, 0.66, -0.56)', // https://easings.net/#easeInBack
    easeOutBack:    'cubic-bezier(0.34, 1.56, 0.64, 1)',  // https://easings.net/#easeOutBack
    easeInOutBack:  'cubic-bezier(0.68, -0.6, 0.32, 1.6)' // https://easings.net/#easeInOutBack
  };

// Preserve the original jQuery "swing" easing as "jswing"
  easings['jswing'] = easings['swing'];

//FlexSlider: Object Instance
  $.flexslider = function(el, options) {
    var slider = $(el);

// making variables public

//if rtl value was not passed and html is in rtl..enable it by default.
  	if(typeof options.rtl=='undefined' && $('html').attr('dir')=='rtl'){
  		options.rtl=true;
    }
    slider.vars = $.extend({}, $.flexslider.defaults, options);

var namespace = slider.vars.namespace,
        touch = (( "ontouchstart" in window ) || window.DocumentTouch && document instanceof DocumentTouch) && slider.vars.touch,
        // we add a custom event so we can differentiate manually triggering events when needed.
        eventType = "click touchend keyup flexslider-click",
        watchedEvent = "",
        watchedEventClearTimer,
        easing = easings[slider.vars.easing] || "ease",
        vertical = slider.vars.direction === "vertical",
        reverse = slider.vars.reverse,
        carousel = (slider.vars.itemWidth > 0),
        fade = slider.vars.animation === "fade",
        asNav = slider.vars.asNavFor !== "",
        methods = {};

// 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), 10 );
        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" : ( slider.vars.rtl ? "marginRight" : "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;
        if (slider.transitions) slider.prop = "transform";
        slider.isFirefox = navigator.userAgent.toLowerCase().indexOf('firefox') > -1;
        slider.ensureAnimationEnd = '';
        // 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);

// CUSTOM DIRECTION NAV:
        if (slider.vars.customDirectionNav !== "") slider.customDirectionNav = $(slider.vars.customDirectionNav).length === 2 && $(slider.vars.customDirectionNav);

// 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).on('keyup', function(event) {
            var keycode = event.keyCode;
            if (!slider.animating && (keycode === 39 || keycode === 37)) {
              var target = (slider.vars.rtl?
                                ((keycode === 37) ? slider.getTarget('next') :
                                (keycode === 39) ? slider.getTarget('prev') : false)
                                :
                                ((keycode === 39) ? slider.getTarget('next') :
                                (keycode === 37) ? slider.getTarget('prev') : false)
                                )
                                ;
              slider.flexAnimate(target, slider.vars.pauseOnAction);
            }
          });
        }
        // MOUSEWHEEL:
        if (slider.vars.mousewheel) {
          slider.on('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(); }

// SLIDSESHOW
        if (slider.vars.slideshow) {
          if (slider.vars.pauseOnHover) {
            slider.on( 'mouseenter', function() {
              if (!slider.manualPlay && !slider.manualPause) { slider.pause(); }
            } ).on( 'mouseleave', 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 || document.visibilityState === 'visible') {
            (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).on("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");
              slider.slides.on(eventType, function(e){
                e.preventDefault();
                var $slide = $(this),
                    target = $slide.index();
        				var posFromX;
                if(slider.vars.rtl){
        					posFromX = -1*($slide.offset().right - $(slider).scrollLeft()); // Find position of slide relative to right of slider container
        				}
        				else
        				{
        					posFromX = $slide.offset().left - $(slider).scrollLeft(); // Find position of slide relative to left of slider container
        				}
                if( posFromX <= 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);
                }
              });
        }
      },
      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 = $('<ol class="'+ namespace + 'control-nav ' + namespace + type + '"></ol>');

if (slider.pagingCount > 1) {
            for (var i = 0; i < slider.pagingCount; i++) {
              slide = slider.slides.eq(i);

if ( undefined === slide.attr( 'data-thumb-alt' ) ) {
                slide.attr( 'data-thumb-alt', '' );
              }

item = $( '<a></a>' ).attr( 'href', '#' ).text( j );
              if (slider.vars.controlNav === "thumbnails") {
                item = $('<img/>', {
                  onload: 'this.width = this.naturalWidth; this.height = this.naturalHeight',
                  src: slide.attr('data-thumb'),
                  srcset: slide.attr('data-thumb-srcset'),
                  alt: slide.attr('alt')
                })
              }

if ( '' !== slide.attr( 'data-thumb-alt' ) ) {
                item.attr( 'alt', slide.attr( 'data-thumb-alt' ) );
              }

if ( 'thumbnails' === slider.vars.controlNav && true === slider.vars.thumbCaptions ) {
                var captn = slide.attr( 'data-thumbcaption' );
                if ( '' !== captn && undefined !== captn ) {
                  var caption = $('<span></span>' ).addClass( namespace + 'caption' ).text( captn );
                  item.append( caption );
                }
              }

var liElement = $( '<li>' );
              item.appendTo( liElement );
              liElement.append( '</li>' );

slider.controlNavScaffold.append(liElement);
              j++;

}
          }

// CONTROLSCONTAINER:
          (slider.controlsContainer) ? $(slider.controlsContainer).append(slider.controlNavScaffold) : slider.append(slider.controlNavScaffold);
          methods.controlNav.set();

methods.controlNav.active();

slider.controlNavScaffold.on(eventType, 'a, img', 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);
              }
            }

});
        },
        setupManual: function() {
          slider.controlNav = slider.manualControls;
          methods.controlNav.active();

slider.controlNav.on(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 === "" && event.type !== "flexslider-click") {
              watchedEvent = event.type;
            }
            methods.setToClearWatchedEvent();
          });
        },
        set: function() {
          var selector = (slider.vars.controlNav === "thumbnails") ? 'img' : 'a';
          slider.controlNav = $('.' + namespace + 'control-nav li ' + selector, (slider.controlsContainer) ? slider.controlsContainer : slider);
        },
        active: function() {
          slider.controlNav.removeClass(namespace + "active").eq(slider.animatingTo).addClass(namespace + "active");
        },
        update: function(action, pos) {
          if (slider.pagingCount > 1 && action === "add") {
            slider.controlNavScaffold.append($('<li><a href="#">' + 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 = $('<ul class="' + namespace + 'direction-nav"><li class="' + namespace + 'nav-prev"><a class="' + namespace + 'prev" href="#">' + slider.vars.prevText + '</a></li><li class="' + namespace + 'nav-next"><a class="' + namespace + 'next" href="#">' + slider.vars.nextText + '</a></li></ul>');

// CUSTOM DIRECTION NAV:
          if (slider.customDirectionNav) {
            slider.directionNav = slider.customDirectionNav;
          // CONTROLSCONTAINER:
          } else 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.on(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 === "" && event.type !== "flexslider-click") {
              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).prop( 'tabindex', '-1' );
            }
          } else {
            slider.directionNav.removeClass(disabledClass).prop( 'tabindex', '-1' );
          }
        }
      },
      pausePlay: {
        setup: function() {
          var pausePlayScaffold = $('<div class="' + namespace + 'pauseplay"><a href="#"></a></div>');

// 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.on(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 === "" && event.type !== "flexslider-click") {
              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,
          onTouchStart,
          onTouchMove,
          onTouchEnd,
          scrolling = false,
          localX = 0,
          localY = 0,
          accDx = 0;

onTouchStart = function(e) {
              if (slider.animating) {
                e.preventDefault();
              } else if ( 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);
              }
            };

onTouchMove = function(e) {
              // Local vars for X and Y points.

localX = e.touches[0].pageX;
              localY = e.touches[0].pageY;

dx = (vertical) ? startX - localY : (slider.vars.rtl?-1:1)*(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) {
                  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");
                }
              }
            };

onTouchEnd = function(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;
            };

el.addEventListener('touchstart', onTouchStart, false);
      },
      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 {
			  slider.setProps(slider.computedW, "setTotal");
			  slider.newSlides.width(slider.computedW);
            // SMOOTH HEIGHT:
            if (slider.vars.smoothHeight) { methods.smoothHeight(); }
          }
        }
      },
      smoothHeight: function(dur) {
        if (!vertical || fade) {
          var $obj = (fade) ? slider : slider.viewport;
          (dur) ? $obj.animate({"height": slider.slides.eq(slider.animatingTo).innerHeight()}, dur) : $obj.innerHeight(slider.slides.eq(slider.animatingTo).innerHeight());
        }
      },
      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": $obj.pause(); break;
        }
      },
      uniqueID: function($clone) {
        // Append _clone to current level and children elements with id attributes
        $clone.filter( '[id]' ).add($clone.find( '[id]' )).each(function() {
          var $this = $(this);
          $this.attr( 'id', $this.attr( 'id' ) + '_clone' );
        });
        return $clone;
      },
      pauseInvisible: function() {
            document.addEventListener('visibilitychange', function() {
              if (document.visibilityState === 'hidden') {
                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 {
                  if (slider.vars.initDelay > 0) {
                    setTimeout(slider.play, slider.vars.initDelay);
                  } else {
                    slider.play(); //Didn't init before: simply init or wait for it
                  }
                }
              }
            });
      },
      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.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.vars.animationLoop || !slider.atEnd) {
              slider.animating = false;
              slider.currentSlide = slider.animatingTo;
            }

// Unbind previous transitionEnd events and re-bind new transitionEnd event
            slider.container.off("transitionend");
            slider.container.on("transitionend", function() {
              clearTimeout(slider.ensureAnimationEnd);
              slider.wrapup(dimension);
            });

// Insurance for the ever-so-fickle transitionEnd event
            clearTimeout(slider.ensureAnimationEnd);
            slider.ensureAnimationEnd = setTimeout(function() {
              slider.wrapup(dimension);
            }, slider.vars.animationSpeed + 100);

} else { // FADE:
          // if (!touch) calls slider.wrapup() on fade animation end; if (touch) calls slider.wrapup() immediately
          if (!touch) {
            slider.slides.eq(slider.currentSlide).off("transitionend");
            slider.slides.eq(target).off("transitionend").on("transitionend", slider.wrapup);
          }

slider.slides.eq(slider.currentSlide).css({ "opacity": 0, "zIndex": 1 });
          slider.slides.eq(target).css({ "opacity": 1, "zIndex": 2 });

if (touch) {
            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 * ((slider.vars.rtl)?1:-1)) + "px";
          }());

dur = (dur !== undefined) ? (dur/1000) + "s" : "0s";
      slider.container.css("transition-duration", dur);

if (slider.transitions) {
        target = (vertical) ? "translate3d(0," + target + ",0)" : "translate3d(" + (parseInt(target)+'px') + ",0,0)";
      } else {
        slider.container.css("transition-timing-function", easing);
      }

slider.args[slider.prop] = target;
      slider.container.css(slider.args);
    };

slider.setup = function(type) {
      // SLIDE:
      if (!fade) {
        var sliderOffset, arr;

if (type === "init") {
          slider.viewport = $('<div class="' + namespace + 'viewport"></div>').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(methods.uniqueID(slider.slides.first().clone().addClass('clone')).attr('aria-hidden', 'true'))
                          .prepend(methods.uniqueID(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();
          if(slider.vars.rtl){
              slider.newSlides.css({"width": slider.computedW, "marginRight" : slider.computedM, "float": "right", "display": "block"});
           }
            else{
              slider.newSlides.css({"width": slider.computedW, "marginRight" : slider.computedM, "float": "left", "display": "block"});
            }
            // SMOOTH HEIGHT:
            if (slider.vars.smoothHeight) { methods.smoothHeight(); }
          }, (type === "init") ? 100 : 0);
        }
      } else { // FADE:
        if(slider.vars.rtl){
          slider.slides.css({"width": "100%", "float": 'right', "marginLeft": "-100%", "position": "relative"});
        }
        else{
          slider.slides.css({"width": "100%", "float": 'left', "marginRight": "-100%", "position": "relative"});
        }
        if (type === "init") {
          if (!touch) {
            // Every "opacity" change before outerWidth() does NOT get animated; every "opacity" change after outerWidth() becomes a fadeIn
            if (slider.vars.fadeFirstSlide == false) {
              slider.slides.css({ "opacity": 0, "display": "block", "zIndex": 1 }).eq(slider.currentSlide).css({"zIndex": 2}).css({"opacity": 1});
              slider.slides.outerWidth();
            } else {
              slider.slides.css({ "opacity": 0, "display": "block", "zIndex": 1 }).outerWidth();
              slider.slides.eq(slider.currentSlide).css({"zIndex": 2}).css({"opacity": 1});
            }
            slider.slides.css({ "transition": "opacity " + slider.vars.animationSpeed / 1000 + "s " + easing });
          } else {
            slider.slides.css({ "opacity": 0, "display": "block", "transition": "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"); }

//FlexSlider: init() Callback
      slider.vars.init(slider);
    };

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();
      if (slider.isFirefox) { slider.w = slider.width(); }
      slider.h = slide.height();
      slider.boxPadding = slide.outerWidth() - slide.width();

// CAROUSEL:
      if (carousel) {
        slider.itemT = slider.vars.itemWidth + slideMargin;
        slider.itemM = 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.itemM = slideMargin;
        slider.pagingCount = slider.count;
        slider.last = slider.count - 1;
      }
      slider.computedW = slider.itemW - slider.boxPadding;
      slider.computedM = slider.itemM;
    };

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 ).on( 'blur', function ( e ) {
    focused = false;
  }).on( '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. Most jQuery easing plugin methods are 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
    fadeFirstSlide: true,           //Boolean: Fade in the first slide when animation type is "fade"
    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: false,            //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 slide? 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: false,              //{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.
    customDirectionNav: "",         //{NEW} jQuery Object/Selector: Custom prev / next button. Must be two jQuery elements. In order to make the events work they have to have the classes "prev" and "next" (plus namespace)
    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

// Browser Specific
    isFirefox: false,             // {NEW} Boolean: Set to true when Firefox is the browser used.

// 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
    init: function() {},             //{NEW} Callback: function(slider) - Fires after the slider is initially setup
	rtl: false             //{NEW} Boolean: Whether or not to enable RTL mode
  };

//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 === false ) || $slides.length === 0 ) {
          var fadeIn = [{ opacity: 0 }, { opacity: 1 }];
          if ($slides.length) { $slides[0].animate(fadeIn, 400); }
          if (options.start) { options.start($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);