/*!
Waypoints - 4.0.1
Copyright © 2011-2016 Caleb Troughton
Licensed under the MIT license.
https://github.com/imakewebthings/waypoints/blob/master/licenses.txt
*/
(function() {
    'use strict'
  
    var keyCounter = 0
    var allWaypoints = {}
  
    /* http://imakewebthings.com/waypoints/api/waypoint */
    function Waypoint(options) {
      if (!options) {
        throw new Error('No options passed to Waypoint constructor')
      }
      if (!options.element) {
        throw new Error('No element option passed to Waypoint constructor')
      }
      if (!options.handler) {
        throw new Error('No handler option passed to Waypoint constructor')
      }
  
      this.key = 'waypoint-' + keyCounter
      this.options = Waypoint.Adapter.extend({}, Waypoint.defaults, options)
      this.element = this.options.element
      this.adapter = new Waypoint.Adapter(this.element)
      this.callback = options.handler
      this.axis = this.options.horizontal ? 'horizontal' : 'vertical'
      this.enabled = this.options.enabled
      this.triggerPoint = null
      this.group = Waypoint.Group.findOrCreate({
        name: this.options.group,
        axis: this.axis
      })
      this.context = Waypoint.Context.findOrCreateByElement(this.options.context)
  
      if (Waypoint.offsetAliases[this.options.offset]) {
        this.options.offset = Waypoint.offsetAliases[this.options.offset]
      }
      this.group.add(this)
      this.context.add(this)
      allWaypoints[this.key] = this
      keyCounter += 1
    }
  
    /* Private */
    Waypoint.prototype.queueTrigger = function(direction) {
      this.group.queueTrigger(this, direction)
    }
  
    /* Private */
    Waypoint.prototype.trigger = function(args) {
      if (!this.enabled) {
        return
      }
      if (this.callback) {
        this.callback.apply(this, args)
      }
    }
  
    /* Public */
    /* http://imakewebthings.com/waypoints/api/destroy */
    Waypoint.prototype.destroy = function() {
      this.context.remove(this)
      this.group.remove(this)
      delete allWaypoints[this.key]
    }
  
    /* Public */
    /* http://imakewebthings.com/waypoints/api/disable */
    Waypoint.prototype.disable = function() {
      this.enabled = false
      return this
    }
  
    /* Public */
    /* http://imakewebthings.com/waypoints/api/enable */
    Waypoint.prototype.enable = function() {
      this.context.refresh()
      this.enabled = true
      return this
    }
  
    /* Public */
    /* http://imakewebthings.com/waypoints/api/next */
    Waypoint.prototype.next = function() {
      return this.group.next(this)
    }
  
    /* Public */
    /* http://imakewebthings.com/waypoints/api/previous */
    Waypoint.prototype.previous = function() {
      return this.group.previous(this)
    }
  
    /* Private */
    Waypoint.invokeAll = function(method) {
      var allWaypointsArray = []
      for (var waypointKey in allWaypoints) {
        allWaypointsArray.push(allWaypoints[waypointKey])
      }
      for (var i = 0, end = allWaypointsArray.length; i < end; i++) {
        allWaypointsArray[i][method]()
      }
    }
  
    /* Public */
    /* http://imakewebthings.com/waypoints/api/destroy-all */
    Waypoint.destroyAll = function() {
      Waypoint.invokeAll('destroy')
    }
  
    /* Public */
    /* http://imakewebthings.com/waypoints/api/disable-all */
    Waypoint.disableAll = function() {
      Waypoint.invokeAll('disable')
    }
  
    /* Public */
    /* http://imakewebthings.com/waypoints/api/enable-all */
    Waypoint.enableAll = function() {
      Waypoint.Context.refreshAll()
      for (var waypointKey in allWaypoints) {
        allWaypoints[waypointKey].enabled = true
      }
      return this
    }
  
    /* Public */
    /* http://imakewebthings.com/waypoints/api/refresh-all */
    Waypoint.refreshAll = function() {
      Waypoint.Context.refreshAll()
    }
  
    /* Public */
    /* http://imakewebthings.com/waypoints/api/viewport-height */
    Waypoint.viewportHeight = function() {
      return window.innerHeight || document.documentElement.clientHeight
    }
  
    /* Public */
    /* http://imakewebthings.com/waypoints/api/viewport-width */
    Waypoint.viewportWidth = function() {
      return document.documentElement.clientWidth
    }
  
    Waypoint.adapters = []
  
    Waypoint.defaults = {
      context: window,
      continuous: true,
      enabled: true,
      group: 'default',
      horizontal: false,
      offset: 0
    }
  
    Waypoint.offsetAliases = {
      'bottom-in-view': function() {
        return this.context.innerHeight() - this.adapter.outerHeight()
      },
      'right-in-view': function() {
        return this.context.innerWidth() - this.adapter.outerWidth()
      }
    }
  
    window.Waypoint = Waypoint
  }())
  ;(function() {
    'use strict'
  
    function requestAnimationFrameShim(callback) {
      window.setTimeout(callback, 1000 / 60)
    }
  
    var keyCounter = 0
    var contexts = {}
    var Waypoint = window.Waypoint
    var oldWindowLoad = window.onload
  
    /* http://imakewebthings.com/waypoints/api/context */
    function Context(element) {
      this.element = element
      this.Adapter = Waypoint.Adapter
      this.adapter = new this.Adapter(element)
      this.key = 'waypoint-context-' + keyCounter
      this.didScroll = false
      this.didResize = false
      this.oldScroll = {
        x: this.adapter.scrollLeft(),
        y: this.adapter.scrollTop()
      }
      this.waypoints = {
        vertical: {},
        horizontal: {}
      }
  
      element.waypointContextKey = this.key
      contexts[element.waypointContextKey] = this
      keyCounter += 1
      if (!Waypoint.windowContext) {
        Waypoint.windowContext = true
        Waypoint.windowContext = new Context(window)
      }
  
      this.createThrottledScrollHandler()
      this.createThrottledResizeHandler()
    }
  
    /* Private */
    Context.prototype.add = function(waypoint) {
      var axis = waypoint.options.horizontal ? 'horizontal' : 'vertical'
      this.waypoints[axis][waypoint.key] = waypoint
      this.refresh()
    }
  
    /* Private */
    Context.prototype.checkEmpty = function() {
      var horizontalEmpty = this.Adapter.isEmptyObject(this.waypoints.horizontal)
      var verticalEmpty = this.Adapter.isEmptyObject(this.waypoints.vertical)
      var isWindow = this.element == this.element.window
      if (horizontalEmpty && verticalEmpty && !isWindow) {
        this.adapter.off('.waypoints')
        delete contexts[this.key]
      }
    }
  
    /* Private */
    Context.prototype.createThrottledResizeHandler = function() {
      var self = this
  
      function resizeHandler() {
        self.handleResize()
        self.didResize = false
      }
  
      this.adapter.on('resize.waypoints', function() {
        if (!self.didResize) {
          self.didResize = true
          Waypoint.requestAnimationFrame(resizeHandler)
        }
      })
    }
  
    /* Private */
    Context.prototype.createThrottledScrollHandler = function() {
      var self = this
      function scrollHandler() {
        self.handleScroll()
        self.didScroll = false
      }
  
      this.adapter.on('scroll.waypoints', function() {
        if (!self.didScroll || Waypoint.isTouch) {
          self.didScroll = true
          Waypoint.requestAnimationFrame(scrollHandler)
        }
      })
    }
  
    /* Private */
    Context.prototype.handleResize = function() {
      Waypoint.Context.refreshAll()
    }
  
    /* Private */
    Context.prototype.handleScroll = function() {
      var triggeredGroups = {}
      var axes = {
        horizontal: {
          newScroll: this.adapter.scrollLeft(),
          oldScroll: this.oldScroll.x,
          forward: 'right',
          backward: 'left'
        },
        vertical: {
          newScroll: this.adapter.scrollTop(),
          oldScroll: this.oldScroll.y,
          forward: 'down',
          backward: 'up'
        }
      }
  
      for (var axisKey in axes) {
        var axis = axes[axisKey]
        var isForward = axis.newScroll > axis.oldScroll
        var direction = isForward ? axis.forward : axis.backward
  
        for (var waypointKey in this.waypoints[axisKey]) {
          var waypoint = this.waypoints[axisKey][waypointKey]
          if (waypoint.triggerPoint === null) {
            continue
          }
          var wasBeforeTriggerPoint = axis.oldScroll < waypoint.triggerPoint
          var nowAfterTriggerPoint = axis.newScroll >= waypoint.triggerPoint
          var crossedForward = wasBeforeTriggerPoint && nowAfterTriggerPoint
          var crossedBackward = !wasBeforeTriggerPoint && !nowAfterTriggerPoint
          if (crossedForward || crossedBackward) {
            waypoint.queueTrigger(direction)
            triggeredGroups[waypoint.group.id] = waypoint.group
          }
        }
      }
  
      for (var groupKey in triggeredGroups) {
        triggeredGroups[groupKey].flushTriggers()
      }
  
      this.oldScroll = {
        x: axes.horizontal.newScroll,
        y: axes.vertical.newScroll
      }
    }
  
    /* Private */
    Context.prototype.innerHeight = function() {
      /*eslint-disable eqeqeq */
      if (this.element == this.element.window) {
        return Waypoint.viewportHeight()
      }
      /*eslint-enable eqeqeq */
      return this.adapter.innerHeight()
    }
  
    /* Private */
    Context.prototype.remove = function(waypoint) {
      delete this.waypoints[waypoint.axis][waypoint.key]
      this.checkEmpty()
    }
  
    /* Private */
    Context.prototype.innerWidth = function() {
      /*eslint-disable eqeqeq */
      if (this.element == this.element.window) {
        return Waypoint.viewportWidth()
      }
      /*eslint-enable eqeqeq */
      return this.adapter.innerWidth()
    }
  
    /* Public */
    /* http://imakewebthings.com/waypoints/api/context-destroy */
    Context.prototype.destroy = function() {
      var allWaypoints = []
      for (var axis in this.waypoints) {
        for (var waypointKey in this.waypoints[axis]) {
          allWaypoints.push(this.waypoints[axis][waypointKey])
        }
      }
      for (var i = 0, end = allWaypoints.length; i < end; i++) {
        allWaypoints[i].destroy()
      }
    }
  
    /* Public */
    /* http://imakewebthings.com/waypoints/api/context-refresh */
    Context.prototype.refresh = function() {
      /*eslint-disable eqeqeq */
      var isWindow = this.element == this.element.window
      /*eslint-enable eqeqeq */
      var contextOffset = isWindow ? undefined : this.adapter.offset()
      var triggeredGroups = {}
      var axes
  
      this.handleScroll()
      axes = {
        horizontal: {
          contextOffset: isWindow ? 0 : contextOffset.left,
          contextScroll: isWindow ? 0 : this.oldScroll.x,
          contextDimension: this.innerWidth(),
          oldScroll: this.oldScroll.x,
          forward: 'right',
          backward: 'left',
          offsetProp: 'left'
        },
        vertical: {
          contextOffset: isWindow ? 0 : contextOffset.top,
          contextScroll: isWindow ? 0 : this.oldScroll.y,
          contextDimension: this.innerHeight(),
          oldScroll: this.oldScroll.y,
          forward: 'down',
          backward: 'up',
          offsetProp: 'top'
        }
      }
  
      for (var axisKey in axes) {
        var axis = axes[axisKey]
        for (var waypointKey in this.waypoints[axisKey]) {
          var waypoint = this.waypoints[axisKey][waypointKey]
          var adjustment = waypoint.options.offset
          var oldTriggerPoint = waypoint.triggerPoint
          var elementOffset = 0
          var freshWaypoint = oldTriggerPoint == null
          var contextModifier, wasBeforeScroll, nowAfterScroll
          var triggeredBackward, triggeredForward
  
          if (waypoint.element !== waypoint.element.window) {
            elementOffset = waypoint.adapter.offset()[axis.offsetProp]
          }
  
          if (typeof adjustment === 'function') {
            adjustment = adjustment.apply(waypoint)
          }
          else if (typeof adjustment === 'string') {
            adjustment = parseFloat(adjustment)
            if (waypoint.options.offset.indexOf('%') > - 1) {
              adjustment = Math.ceil(axis.contextDimension * adjustment / 100)
            }
          }
  
          contextModifier = axis.contextScroll - axis.contextOffset
          waypoint.triggerPoint = Math.floor(elementOffset + contextModifier - adjustment)
          wasBeforeScroll = oldTriggerPoint < axis.oldScroll
          nowAfterScroll = waypoint.triggerPoint >= axis.oldScroll
          triggeredBackward = wasBeforeScroll && nowAfterScroll
          triggeredForward = !wasBeforeScroll && !nowAfterScroll
  
          if (!freshWaypoint && triggeredBackward) {
            waypoint.queueTrigger(axis.backward)
            triggeredGroups[waypoint.group.id] = waypoint.group
          }
          else if (!freshWaypoint && triggeredForward) {
            waypoint.queueTrigger(axis.forward)
            triggeredGroups[waypoint.group.id] = waypoint.group
          }
          else if (freshWaypoint && axis.oldScroll >= waypoint.triggerPoint) {
            waypoint.queueTrigger(axis.forward)
            triggeredGroups[waypoint.group.id] = waypoint.group
          }
        }
      }
  
      Waypoint.requestAnimationFrame(function() {
        for (var groupKey in triggeredGroups) {
          triggeredGroups[groupKey].flushTriggers()
        }
      })
  
      return this
    }
  
    /* Private */
    Context.findOrCreateByElement = function(element) {
      return Context.findByElement(element) || new Context(element)
    }
  
    /* Private */
    Context.refreshAll = function() {
      for (var contextId in contexts) {
        contexts[contextId].refresh()
      }
    }
  
    /* Public */
    /* http://imakewebthings.com/waypoints/api/context-find-by-element */
    Context.findByElement = function(element) {
      return contexts[element.waypointContextKey]
    }
  
    window.onload = function() {
      if (oldWindowLoad) {
        oldWindowLoad()
      }
      Context.refreshAll()
    }
  
  
    Waypoint.requestAnimationFrame = function(callback) {
      var requestFn = window.requestAnimationFrame ||
        window.mozRequestAnimationFrame ||
        window.webkitRequestAnimationFrame ||
        requestAnimationFrameShim
      requestFn.call(window, callback)
    }
    Waypoint.Context = Context
  }())
  ;(function() {
    'use strict'
  
    function byTriggerPoint(a, b) {
      return a.triggerPoint - b.triggerPoint
    }
  
    function byReverseTriggerPoint(a, b) {
      return b.triggerPoint - a.triggerPoint
    }
  
    var groups = {
      vertical: {},
      horizontal: {}
    }
    var Waypoint = window.Waypoint
  
    /* http://imakewebthings.com/waypoints/api/group */
    function Group(options) {
      this.name = options.name
      this.axis = options.axis
      this.id = this.name + '-' + this.axis
      this.waypoints = []
      this.clearTriggerQueues()
      groups[this.axis][this.name] = this
    }
  
    /* Private */
    Group.prototype.add = function(waypoint) {
      this.waypoints.push(waypoint)
    }
  
    /* Private */
    Group.prototype.clearTriggerQueues = function() {
      this.triggerQueues = {
        up: [],
        down: [],
        left: [],
        right: []
      }
    }
  
    /* Private */
    Group.prototype.flushTriggers = function() {
      for (var direction in this.triggerQueues) {
        var waypoints = this.triggerQueues[direction]
        var reverse = direction === 'up' || direction === 'left'
        waypoints.sort(reverse ? byReverseTriggerPoint : byTriggerPoint)
        for (var i = 0, end = waypoints.length; i < end; i += 1) {
          var waypoint = waypoints[i]
          if (waypoint.options.continuous || i === waypoints.length - 1) {
            waypoint.trigger([direction])
          }
        }
      }
      this.clearTriggerQueues()
    }
  
    /* Private */
    Group.prototype.next = function(waypoint) {
      this.waypoints.sort(byTriggerPoint)
      var index = Waypoint.Adapter.inArray(waypoint, this.waypoints)
      var isLast = index === this.waypoints.length - 1
      return isLast ? null : this.waypoints[index + 1]
    }
  
    /* Private */
    Group.prototype.previous = function(waypoint) {
      this.waypoints.sort(byTriggerPoint)
      var index = Waypoint.Adapter.inArray(waypoint, this.waypoints)
      return index ? this.waypoints[index - 1] : null
    }
  
    /* Private */
    Group.prototype.queueTrigger = function(waypoint, direction) {
      this.triggerQueues[direction].push(waypoint)
    }
  
    /* Private */
    Group.prototype.remove = function(waypoint) {
      var index = Waypoint.Adapter.inArray(waypoint, this.waypoints)
      if (index > -1) {
        this.waypoints.splice(index, 1)
      }
    }
  
    /* Public */
    /* http://imakewebthings.com/waypoints/api/first */
    Group.prototype.first = function() {
      return this.waypoints[0]
    }
  
    /* Public */
    /* http://imakewebthings.com/waypoints/api/last */
    Group.prototype.last = function() {
      return this.waypoints[this.waypoints.length - 1]
    }
  
    /* Private */
    Group.findOrCreate = function(options) {
      return groups[options.axis][options.name] || new Group(options)
    }
  
    Waypoint.Group = Group
  }())
  ;(function() {
    'use strict'
  
    var $ = window.jQuery
    var Waypoint = window.Waypoint
  
    function JQueryAdapter(element) {
      this.$element = $(element)
    }
  
    $.each([
      'innerHeight',
      'innerWidth',
      'off',
      'offset',
      'on',
      'outerHeight',
      'outerWidth',
      'scrollLeft',
      'scrollTop'
    ], function(i, method) {
      JQueryAdapter.prototype[method] = function() {
        var args = Array.prototype.slice.call(arguments)
        return this.$element[method].apply(this.$element, args)
      }
    })
  
    $.each([
      'extend',
      'inArray',
      'isEmptyObject'
    ], function(i, method) {
      JQueryAdapter[method] = $[method]
    })
  
    Waypoint.adapters.push({
      name: 'jquery',
      Adapter: JQueryAdapter
    })
    Waypoint.Adapter = JQueryAdapter
  }())
  ;(function() {
    'use strict'
  
    var Waypoint = window.Waypoint
  
    function createExtension(framework) {
      return function() {
        var waypoints = []
        var overrides = arguments[0]
  
        if (framework.isFunction(arguments[0])) {
          overrides = framework.extend({}, arguments[1])
          overrides.handler = arguments[0]
        }
  
        this.each(function() {
          var options = framework.extend({}, overrides, {
            element: this
          })
          if (typeof options.context === 'string') {
            options.context = framework(this).closest(options.context)[0]
          }
          waypoints.push(new Waypoint(options))
        })
  
        return waypoints
      }
    }
  
    if (window.jQuery) {
      window.jQuery.fn.waypoint = createExtension(window.jQuery)
    }
    if (window.Zepto) {
      window.Zepto.fn.waypoint = createExtension(window.Zepto)
    }
  }())
  ;