text: /*!
   * pickadate.js v3.5.6, 2015/04/20
   * By Amsul, http://amsul.ca
   * Hosted on http://amsul.github.io/pickadate.js
   * Licensed under MIT
   */
  
  (function ( factory ) {
  
      // AMD.
      if ( typeof define == 'function' && define.amd )
          define( 'picker', ['jquery'], factory )
  
      // Node.js/browserify.
      else if ( typeof exports == 'object' )
          module.exports = factory( require('jquery') )
  
      // Browser globals.
      else this.Picker = factory( jQuery )
  
  }(function( $ ) {
  
  var $window = $( window )
  var $document = $( document )
  var $html = $( document.documentElement )
  var supportsTransitions = document.documentElement.style.transition != null
  
  
  /**
   * The picker constructor that creates a blank picker.
   */
  function PickerConstructor( ELEMENT, NAME, COMPONENT, OPTIONS ) {
  
      // If there’s no element, return the picker constructor.
      if ( !ELEMENT ) return PickerConstructor
  
  
      var
          IS_DEFAULT_THEME = false,
  
  
          // The state of the picker.
          STATE = {
              id: ELEMENT.id || 'P' + Math.abs( ~~(Math.random() * new Date()) )
          },
  
  
          // Merge the defaults and options passed.
          SETTINGS = COMPONENT ? $.extend( true, {}, COMPONENT.defaults, OPTIONS ) : OPTIONS || {},
  
  
          // Merge the default classes with the settings classes.
          CLASSES = $.extend( {}, PickerConstructor.klasses(), SETTINGS.klass ),
  
  
          // The element node wrapper into a jQuery object.
          $ELEMENT = $( ELEMENT ),
  
  
          // Pseudo picker constructor.
          PickerInstance = function() {
              return this.start()
          },
  
  
          // The picker prototype.
          P = PickerInstance.prototype = {
  
              constructor: PickerInstance,
  
              $node: $ELEMENT,
  
  
              /**
               * Initialize everything
               */
              start: function() {
  
                  // If it’s already started, do nothing.
                  if ( STATE && STATE.start ) return P
  
  
                  // Update the picker states.
                  STATE.methods = {}
                  STATE.start = true
                  STATE.open = false
                  STATE.type = ELEMENT.type
  
  
                  // Confirm focus state, convert into text input to remove UA stylings,
                  // and set as readonly to prevent keyboard popup.
                  ELEMENT.autofocus = ELEMENT == getActiveElement()
                  ELEMENT.readOnly = !SETTINGS.editable
                  ELEMENT.id = ELEMENT.id || STATE.id
                  if ( ELEMENT.type != 'text' ) {
                      ELEMENT.type = 'text'
                  }
  
  
                  // Create a new picker component with the settings.
                  P.component = new COMPONENT(P, SETTINGS)
  
  
                  // Create the picker root and then prepare it.
                  P.$root = $( '<div class="' + CLASSES.picker + '" id="' + ELEMENT.id + '_root" />' )
                  prepareElementRoot()
  
  
                  // Create the picker holder and then prepare it.
                  P.$holder = $( createWrappedComponent() ).appendTo( P.$root )
                  prepareElementHolder()
  
  
                  // If there’s a format for the hidden input element, create the element.
                  if ( SETTINGS.formatSubmit ) {
                      prepareElementHidden()
                  }
  
  
                  // Prepare the input element.
                  prepareElement()
  
  
                  // Insert the hidden input as specified in the settings.
                  if ( SETTINGS.containerHidden ) $( SETTINGS.containerHidden ).append( P._hidden )
                  else $ELEMENT.after( P._hidden )
  
  
                  // Insert the root as specified in the settings.
                  if ( SETTINGS.container ) $( SETTINGS.container ).append( P.$root )
                  else $ELEMENT.after( P.$root )
  
  
                  // Bind the default component and settings events.
                  P.on({
                      start: P.component.onStart,
                      render: P.component.onRender,
                      stop: P.component.onStop,
                      open: P.component.onOpen,
                      close: P.component.onClose,
                      set: P.component.onSet
                  }).on({
                      start: SETTINGS.onStart,
                      render: SETTINGS.onRender,
                      stop: SETTINGS.onStop,
                      open: SETTINGS.onOpen,
                      close: SETTINGS.onClose,
                      set: SETTINGS.onSet
                  })
  
  
                  // Once we’re all set, check the theme in use.
                  IS_DEFAULT_THEME = isUsingDefaultTheme( P.$holder[0] )
  
  
                  // If the element has autofocus, open the picker.
                  if ( ELEMENT.autofocus ) {
                      P.open()
                  }
  
  
                  // Trigger queued the “start” and “render” events.
                  return P.trigger( 'start' ).trigger( 'render' )
              }, //start
  
  
              /**
               * Render a new picker
               */
              render: function( entireComponent ) {
  
                  // Insert a new component holder in the root or box.
                  if ( entireComponent ) {
                      P.$holder = $( createWrappedComponent() )
                      prepareElementHolder()
                      P.$root.html( P.$holder )
                  }
                  else P.$root.find( '.' + CLASSES.box ).html( P.component.nodes( STATE.open ) )
  
                  // Trigger the queued “render” events.
                  return P.trigger( 'render' )
              }, //render
  
  
              /**
               * Destroy everything
               */
              stop: function() {
  
                  // If it’s already stopped, do nothing.
                  if ( !STATE.start ) return P
  
                  // Then close the picker.
                  P.close()
  
                  // Remove the hidden field.
                  if ( P._hidden ) {
                      P._hidden.parentNode.removeChild( P._hidden )
                  }
  
                  // Remove the root.
                  P.$root.remove()
  
                  // Remove the input class, remove the stored data, and unbind
                  // the events (after a tick for IE - see `P.close`).
                  $ELEMENT.removeClass( CLASSES.input ).removeData( NAME )
                  setTimeout( function() {
                      $ELEMENT.off( '.' + STATE.id )
                  }, 0)
  
                  // Restore the element state
                  ELEMENT.type = STATE.type
                  ELEMENT.readOnly = false
  
                  // Trigger the queued “stop” events.
                  P.trigger( 'stop' )
  
                  // Reset the picker states.
                  STATE.methods = {}
                  STATE.start = false
  
                  return P
              }, //stop
  
  
              /**
               * Open up the picker
               */
              open: function( dontGiveFocus ) {
  
                  // If it’s already open, do nothing.
                  if ( STATE.open ) return P
  
                  // Add the “active” class.
                  $ELEMENT.addClass( CLASSES.active )
                  aria( ELEMENT, 'expanded', true )
  
                  // * A Firefox bug, when `html` has `overflow:hidden`, results in
                  //   killing transitions :(. So add the “opened” state on the next tick.
                  //   Bug: https://bugzilla.mozilla.org/show_bug.cgi?id=625289
                  setTimeout( function() {
  
                      // Add the “opened” class to the picker root.
                      P.$root.addClass( CLASSES.opened )
                      aria( P.$root[0], 'hidden', false )
  
                  }, 0 )
  
                  // If we have to give focus, bind the element and doc events.
                  if ( dontGiveFocus !== false ) {
  
                      // Set it as open.
                      STATE.open = true
  
                      // Prevent the page from scrolling.
                      if ( IS_DEFAULT_THEME ) {
                          $html.
                              css( 'overflow', 'hidden' ).
                              css( 'padding-right', '+=' + getScrollbarWidth() )
                      }
  
                      // Pass focus to the root element’s jQuery object.
                      focusPickerOnceOpened()
  
                      // Bind the document events.
                      $document.on( 'click.' + STATE.id + ' focusin.' + STATE.id, function( event ) {
  
                          var target = event.target
  
                          // If the target of the event is not the element, close the picker picker.
                          // * Don’t worry about clicks or focusins on the root because those don’t bubble up.
                          //   Also, for Firefox, a click on an `option` element bubbles up directly
                          //   to the doc. So make sure the target wasn't the doc.
                          // * In Firefox stopPropagation() doesn’t prevent right-click events from bubbling,
                          //   which causes the picker to unexpectedly close when right-clicking it. So make
                          //   sure the event wasn’t a right-click.
                          if ( target != ELEMENT && target != document && event.which != 3 ) {
  
                              // If the target was the holder that covers the screen,
                              // keep the element focused to maintain tabindex.
                              P.close( target === P.$holder[0] )
                          }
  
                      }).on( 'keydown.' + STATE.id, function( event ) {
  
                          var
                              // Get the keycode.
                              keycode = event.keyCode,
  
                              // Translate that to a selection change.
                              keycodeToMove = P.component.key[ keycode ],
  
                              // Grab the target.
                              target = event.target
  
  
                          // On escape, close the picker and give focus.
                          if ( keycode == 27 ) {
                              P.close( true )
                          }
  
  
                          // Check if there is a key movement or “enter” keypress on the element.
                          else if ( target == P.$holder[0] && ( keycodeToMove || keycode == 13 ) ) {
  
                              // Prevent the default action to stop page movement.
                              event.preventDefault()
  
                              // Trigger the key movement action.
                              if ( keycodeToMove ) {
                                  PickerConstructor._.trigger( P.component.key.go, P, [ PickerConstructor._.trigger( keycodeToMove ) ] )
                              }
  
                              // On “enter”, if the highlighted item isn’t disabled, set the value and close.
                              else if ( !P.$root.find( '.' + CLASSES.highlighted ).hasClass( CLASSES.disabled ) ) {
                                  P.set( 'select', P.component.item.highlight )
                                  if ( SETTINGS.closeOnSelect ) {
                                      P.close( true )
                                  }
                              }
                          }
  
  
                          // If the target is within the root and “enter” is pressed,
                          // prevent the default action and trigger a click on the target instead.
                          else if ( $.contains( P.$root[0], target ) && keycode == 13 ) {
                              event.preventDefault()
                              target.click()
                          }
                      })
                  }
  
                  // Trigger the queued “open” events.
                  return P.trigger( 'open' )
              }, //open
  
  
              /**
               * Close the picker
               */
              close: function( giveFocus ) {
  
                  // If we need to give focus, do it before changing states.
                  if ( giveFocus ) {
                      if ( SETTINGS.editable ) {
                          ELEMENT.focus()
                      }
                      else {
                          // ....ah yes! It would’ve been incomplete without a crazy workaround for IE :|
                          // The focus is triggered *after* the close has completed - causing it
                          // to open again. So unbind and rebind the event at the next tick.
                          P.$holder.off( 'focus.toOpen' ).focus()
                          setTimeout( function() {
                              P.$holder.on( 'focus.toOpen', handleFocusToOpenEvent )
                          }, 0 )
                      }
                  }
  
                  // Remove the “active” class.
                  $ELEMENT.removeClass( CLASSES.active )
                  aria( ELEMENT, 'expanded', false )
  
                  // * A Firefox bug, when `html` has `overflow:hidden`, results in
                  //   killing transitions :(. So remove the “opened” state on the next tick.
                  //   Bug: https://bugzilla.mozilla.org/show_bug.cgi?id=625289
                  setTimeout( function() {
  
                      // Remove the “opened” and “focused” class from the picker root.
                      P.$root.removeClass( CLASSES.opened + ' ' + CLASSES.focused )
                      aria( P.$root[0], 'hidden', true )
  
                  }, 0 )
  
                  // If it’s already closed, do nothing more.
                  if ( !STATE.open ) return P
  
                  // Set it as closed.
                  STATE.open = false
  
                  // Allow the page to scroll.
                  if ( IS_DEFAULT_THEME ) {
                      $html.
                          css( 'overflow', '' ).
                          css( 'padding-right', '-=' + getScrollbarWidth() )
                  }
  
                  // Unbind the document events.
                  $document.off( '.' + STATE.id )
  
                  // Trigger the queued “close” events.
                  return P.trigger( 'close' )
              }, //close
  
  
              /**
               * Clear the values
               */
              clear: function( options ) {
                  return P.set( 'clear', null, options )
              }, //clear
  
  
              /**
               * Set something
               */
              set: function( thing, value, options ) {
  
                  var thingItem, thingValue,
                      thingIsObject = $.isPlainObject( thing ),
                      thingObject = thingIsObject ? thing : {}
  
                  // Make sure we have usable options.
                  options = thingIsObject && $.isPlainObject( value ) ? value : options || {}
  
                  if ( thing ) {
  
                      // If the thing isn’t an object, make it one.
                      if ( !thingIsObject ) {
                          thingObject[ thing ] = value
                      }
  
                      // Go through the things of items to set.
                      for ( thingItem in thingObject ) {
  
                          // Grab the value of the thing.
                          thingValue = thingObject[ thingItem ]
  
                          // First, if the item exists and there’s a value, set it.
                          if ( thingItem in P.component.item ) {
                              if ( thingValue === undefined ) thingValue = null
                              P.component.set( thingItem, thingValue, options )
                          }
  
                          // Then, check to update the element value and broadcast a change.
                          if ( thingItem == 'select' || thingItem == 'clear' ) {
                              $ELEMENT.
                                  val( thingItem == 'clear' ? '' : P.get( thingItem, SETTINGS.format ) ).
                                  trigger( 'change' )
                          }
                      }
  
                      // Render a new picker.
                      P.render()
                  }
  
                  // When the method isn’t muted, trigger queued “set” events and pass the `thingObject`.
                  return options.muted ? P : P.trigger( 'set', thingObject )
              }, //set
  
  
              /**
               * Get something
               */
              get: function( thing, format ) {
  
                  // Make sure there’s something to get.
                  thing = thing || 'value'
  
                  // If a picker state exists, return that.
                  if ( STATE[ thing ] != null ) {
                      return STATE[ thing ]
                  }
  
                  // Return the submission value, if that.
                  if ( thing == 'valueSubmit' ) {
                      if ( P._hidden ) {
                          return P._hidden.value
                      }
                      thing = 'value'
                  }
  
                  // Return the value, if that.
                  if ( thing == 'value' ) {
                      return ELEMENT.value
                  }
  
                  // Check if a component item exists, return that.
                  if ( thing in P.component.item ) {
                      if ( typeof format == 'string' ) {
                          var thingValue = P.component.get( thing )
                          return thingValue ?
                              PickerConstructor._.trigger(
                                  P.component.formats.toString,
                                  P.component,
                                  [ format, thingValue ]
                              ) : ''
                      }
                      return P.component.get( thing )
                  }
              }, //get
  
  
  
              /**
               * Bind events on the things.
               */
              on: function( thing, method, internal ) {
  
                  var thingName, thingMethod,
                      thingIsObject = $.isPlainObject( thing ),
                      thingObject = thingIsObject ? thing : {}
  
                  if ( thing ) {
  
                      // If the thing isn’t an object, make it one.
                      if ( !thingIsObject ) {
                          thingObject[ thing ] = method
                      }
  
                      // Go through the things to bind to.
                      for ( thingName in thingObject ) {
  
                          // Grab the method of the thing.
                          thingMethod = thingObject[ thingName ]
  
                          // If it was an internal binding, prefix it.
                          if ( internal ) {
                              thingName = '_' + thingName
                          }
  
                          // Make sure the thing methods collection exists.
                          STATE.methods[ thingName ] = STATE.methods[ thingName ] || []
  
                          // Add the method to the relative method collection.
                          STATE.methods[ thingName ].push( thingMethod )
                      }
                  }
  
                  return P
              }, //on
  
  
  
              /**
               * Unbind events on the things.
               */
              off: function() {
                  var i, thingName,
                      names = arguments;
                  for ( i = 0, namesCount = names.length; i < namesCount; i += 1 ) {
                      thingName = names[i]
                      if ( thingName in STATE.methods ) {
                          delete STATE.methods[thingName]
                      }
                  }
                  return P
              },
  
  
              /**
               * Fire off method events.
               */
              trigger: function( name, data ) {
                  var _trigger = function( name ) {
                      var methodList = STATE.methods[ name ]
                      if ( methodList ) {
                          methodList.map( function( method ) {
                              PickerConstructor._.trigger( method, P, [ data ] )
                          })
                      }
                  }
                  _trigger( '_' + name )
                  _trigger( name )
                  return P
              } //trigger
          } //PickerInstance.prototype
  
  
      /**
       * Wrap the picker holder components together.
       */
      function createWrappedComponent() {
  
          // Create a picker wrapper holder
          return PickerConstructor._.node( 'div',
  
              // Create a picker wrapper node
              PickerConstructor._.node( 'div',
  
                  // Create a picker frame
                  PickerConstructor._.node( 'div',
  
                      // Create a picker box node
                      PickerConstructor._.node( 'div',
  
                          // Create the components nodes.
                          P.component.nodes( STATE.open ),
  
                          // The picker box class
                          CLASSES.box
                      ),
  
                      // Picker wrap class
                      CLASSES.wrap
                  ),
  
                  // Picker frame class
                  CLASSES.frame
              ),
  
              // Picker holder class
              CLASSES.holder,
  
              'tabindex="-1"'
          ) //endreturn
      } //createWrappedComponent
  
  
  
      /**
       * Prepare the input element with all bindings.
       */
      function prepareElement() {
  
          $ELEMENT.
  
              // Store the picker data by component name.
              data(NAME, P).
  
              // Add the “input” class name.
              addClass(CLASSES.input).
  
              // If there’s a `data-value`, update the value of the element.
              val( $ELEMENT.data('value') ?
                  P.get('select', SETTINGS.format) :
                  ELEMENT.value
              )
  
  
          // Only bind keydown events if the element isn’t editable.
          if ( !SETTINGS.editable ) {
  
              $ELEMENT.
  
                  // On focus/click, open the picker.
                  on( 'focus.' + STATE.id + ' click.' + STATE.id, function(event) {
                      event.preventDefault()
                      P.open()
                  }).
  
                  // Handle keyboard event based on the picker being opened or not.
                  on( 'keydown.' + STATE.id, handleKeydownEvent )
          }
  
  
          // Update the aria attributes.
          aria(ELEMENT, {
              haspopup: true,
              expanded: false,
              readonly: false,
              owns: ELEMENT.id + '_root'
          })
      }
  
  
      /**
       * Prepare the root picker element with all bindings.
       */
      function prepareElementRoot() {
          aria( P.$root[0], 'hidden', true )
      }
  
  
       /**
        * Prepare the holder picker element with all bindings.
        */
      function prepareElementHolder() {
  
          P.$holder.
  
              on({
  
                  // For iOS8.
                  keydown: handleKeydownEvent,
  
                  'focus.toOpen': handleFocusToOpenEvent,
  
                  blur: function() {
                      // Remove the “target” class.
                      $ELEMENT.removeClass( CLASSES.target )
                  },
  
                  // When something within the holder is focused, stop from bubbling
                  // to the doc and remove the “focused” state from the root.
                  focusin: function( event ) {
                      P.$root.removeClass( CLASSES.focused )
                      event.stopPropagation()
                  },
  
                  // When something within the holder is clicked, stop it
                  // from bubbling to the doc.
                  'mousedown click': function( event ) {
  
                      var target = event.target
  
                      // Make sure the target isn’t the root holder so it can bubble up.
                      if ( target != P.$holder[0] ) {
  
                          event.stopPropagation()
  
                          // * For mousedown events, cancel the default action in order to
                          //   prevent cases where focus is shifted onto external elements
                          //   when using things like jQuery mobile or MagnificPopup (ref: #249 & #120).
                          //   Also, for Firefox, don’t prevent action on the `option` element.
                          if ( event.type == 'mousedown' && !$( target ).is( 'input, select, textarea, button, option' )) {
  
                              event.preventDefault()
  
                              // Re-focus onto the holder so that users can click away
                              // from elements focused within the picker.
                              P.$holder[0].focus()
                          }
                      }
                  }
  
              }).
  
              // If there’s a click on an actionable element, carry out the actions.
              on( 'click', '[data-pick], [data-nav], [data-clear], [data-close]', function() {
  
                  var $target = $( this ),
                      targetData = $target.data(),
                      targetDisabled = $target.hasClass( CLASSES.navDisabled ) || $target.hasClass( CLASSES.disabled ),
  
                      // * For IE, non-focusable elements can be active elements as well
                      //   (http://stackoverflow.com/a/2684561).
                      activeElement = getActiveElement()
                      activeElement = activeElement && ( activeElement.type || activeElement.href )
  
                  // If it’s disabled or nothing inside is actively focused, re-focus the element.
                  if ( targetDisabled || activeElement && !$.contains( P.$root[0], activeElement ) ) {
                      P.$holder[0].focus()
                  }
  
                  // If something is superficially changed, update the `highlight` based on the `nav`.
                  if ( !targetDisabled && targetData.nav ) {
                      P.set( 'highlight', P.component.item.highlight, { nav: targetData.nav } )
                  }
  
                  // If something is picked, set `select` then close with focus.
                  else if ( !targetDisabled && 'pick' in targetData ) {
                      P.set( 'select', targetData.pick )
                      if ( SETTINGS.closeOnSelect ) {
                          P.close( true )
                      }
                  }
  
                  // If a “clear” button is pressed, empty the values and close with focus.
                  else if ( targetData.clear ) {
                      P.clear()
                      if ( SETTINGS.closeOnClear ) {
                          P.close( true )
                      }
                  }
  
                  else if ( targetData.close ) {
                      P.close( true )
                  }
  
              }) //P.$holder
  
      }
  
  
       /**
        * Prepare the hidden input element along with all bindings.
        */
      function prepareElementHidden() {
  
          var name
  
          if ( SETTINGS.hiddenName === true ) {
              name = ELEMENT.name
              ELEMENT.name = ''
          }
          else {
              name = [
                  typeof SETTINGS.hiddenPrefix == 'string' ? SETTINGS.hiddenPrefix : '',
                  typeof SETTINGS.hiddenSuffix == 'string' ? SETTINGS.hiddenSuffix : '_submit'
              ]
              name = name[0] + ELEMENT.name + name[1]
          }
  
          P._hidden = $(
              '<input ' +
              'type=hidden ' +
  
              // Create the name using the original input’s with a prefix and suffix.
              'name="' + name + '"' +
  
              // If the element has a value, set the hidden value as well.
              (
                  $ELEMENT.data('value') || ELEMENT.value ?
                      ' value="' + P.get('select', SETTINGS.formatSubmit) + '"' :
                      ''
              ) +
              '>'
          )[0]
  
          $ELEMENT.
  
              // If the value changes, update the hidden input with the correct format.
              on('change.' + STATE.id, function() {
                  P._hidden.value = ELEMENT.value ?
                      P.get('select', SETTINGS.formatSubmit) :
                      ''
              })
      }
  
  
      // Wait for transitions to end before focusing the holder. Otherwise, while
      // using the `container` option, the view jumps to the container.
      function focusPickerOnceOpened() {
  
          if (IS_DEFAULT_THEME && supportsTransitions) {
              P.$holder.find('.' + CLASSES.frame).one('transitionend', function() {
                  P.$holder[0].focus()
              })
          }
          else {
              P.$holder[0].focus()
          }
      }
  
  
      function handleFocusToOpenEvent(event) {
  
          // Stop the event from propagating to the doc.
          event.stopPropagation()
  
          // Add the “target” class.
          $ELEMENT.addClass( CLASSES.target )
  
          // Add the “focused” class to the root.
          P.$root.addClass( CLASSES.focused )
  
          // And then finally open the picker.
          P.open()
      }
  
  
      // For iOS8.
      function handleKeydownEvent( event ) {
  
          var keycode = event.keyCode,
  
              // Check if one of the delete keys was pressed.
              isKeycodeDelete = /^(8|46)$/.test(keycode)
  
          // For some reason IE clears the input value on “escape”.
          if ( keycode == 27 ) {
              P.close( true )
              return false
          }
  
          // Check if `space` or `delete` was pressed or the picker is closed with a key movement.
          if ( keycode == 32 || isKeycodeDelete || !STATE.open && P.component.key[keycode] ) {
  
              // Prevent it from moving the page and bubbling to doc.
              event.preventDefault()
              event.stopPropagation()
  
              // If `delete` was pressed, clear the values and close the picker.
              // Otherwise open the picker.
              if ( isKeycodeDelete ) { P.clear().close() }
              else { P.open() }
          }
      }
  
  
      // Return a new picker instance.
      return new PickerInstance()
  } //PickerConstructor
  
  
  
  /**
   * The default classes and prefix to use for the HTML classes.
   */
  PickerConstructor.klasses = function( prefix ) {
      prefix = prefix || 'picker'
      return {
  
          picker: prefix,
          opened: prefix + '--opened',
          focused: prefix + '--focused',
  
          input: prefix + '__input',
          active: prefix + '__input--active',
          target: prefix + '__input--target',
  
          holder: prefix + '__holder',
  
          frame: prefix + '__frame',
          wrap: prefix + '__wrap',
  
          box: prefix + '__box'
      }
  } //PickerConstructor.klasses
  
  
  
  /**
   * Check if the default theme is being used.
   */
  function isUsingDefaultTheme( element ) {
  
      var theme,
          prop = 'position'
  
      // For IE.
      if ( element.currentStyle ) {
          theme = element.currentStyle[prop]
      }
  
      // For normal browsers.
      else if ( window.getComputedStyle ) {
          theme = getComputedStyle( element )[prop]
      }
  
      return theme == 'fixed'
  }
  
  
  
  /**
   * Get the width of the browser’s scrollbar.
   * Taken from: https://github.com/VodkaBears/Remodal/blob/master/src/jquery.remodal.js
   */
  function getScrollbarWidth() {
  
      if ( $html.height() <= $window.height() ) {
          return 0
      }
  
      var $outer = $( '<div style="visibility:hidden;width:100px" />' ).
          appendTo( 'body' )
  
      // Get the width without scrollbars.
      var widthWithoutScroll = $outer[0].offsetWidth
  
      // Force adding scrollbars.
      $outer.css( 'overflow', 'scroll' )
  
      // Add the inner div.
      var $inner = $( '<div style="width:100%" />' ).appendTo( $outer )
  
      // Get the width with scrollbars.
      var widthWithScroll = $inner[0].offsetWidth
  
      // Remove the divs.
      $outer.remove()
  
      // Return the difference between the widths.
      return widthWithoutScroll - widthWithScroll
  }
  
  
  
  /**
   * PickerConstructor helper methods.
   */
  PickerConstructor._ = {
  
      /**
       * Create a group of nodes. Expects:
       * `
          {
              min:    {Integer},
              max:    {Integer},
              i:      {Integer},
              node:   {String},
              item:   {Function}
          }
       * `
       */
      group: function( groupObject ) {
  
          var
              // Scope for the looped object
              loopObjectScope,
  
              // Create the nodes list
              nodesList = '',
  
              // The counter starts from the `min`
              counter = PickerConstructor._.trigger( groupObject.min, groupObject )
  
  
          // Loop from the `min` to `max`, incrementing by `i`
          for ( ; counter <= PickerConstructor._.trigger( groupObject.max, groupObject, [ counter ] ); counter += groupObject.i ) {
  
              // Trigger the `item` function within scope of the object
              loopObjectScope = PickerConstructor._.trigger( groupObject.item, groupObject, [ counter ] )
  
              // Splice the subgroup and create nodes out of the sub nodes
              nodesList += PickerConstructor._.node(
                  groupObject.node,
                  loopObjectScope[ 0 ],   // the node
                  loopObjectScope[ 1 ],   // the classes
                  loopObjectScope[ 2 ]    // the attributes
              )
          }
  
          // Return the list of nodes
          return nodesList
      }, //group
  
  
      /**
       * Create a dom node string
       */
      node: function( wrapper, item, klass, attribute ) {
  
          // If the item is false-y, just return an empty string
          if ( !item ) return ''
  
          // If the item is an array, do a join
          item = $.isArray( item ) ? item.join( '' ) : item
  
          // Check for the class
          klass = klass ? ' class="' + klass + '"' : ''
  
          // Check for any attributes
          attribute = attribute ? ' ' + attribute : ''
  
          // Return the wrapped item
          return '<' + wrapper + klass + attribute + '>' + item + '</' + wrapper + '>'
      }, //node
  
  
      /**
       * Lead numbers below 10 with a zero.
       */
      lead: function( number ) {
          return ( number < 10 ? '0': '' ) + number
      },
  
  
      /**
       * Trigger a function otherwise return the value.
       */
      trigger: function( callback, scope, args ) {
          return typeof callback == 'function' ? callback.apply( scope, args || [] ) : callback
      },
  
  
      /**
       * If the second character is a digit, length is 2 otherwise 1.
       */
      digits: function( string ) {
          return ( /\d/ ).test( string[ 1 ] ) ? 2 : 1
      },
  
  
      /**
       * Tell if something is a date object.
       */
      isDate: function( value ) {
          return {}.toString.call( value ).indexOf( 'Date' ) > -1 && this.isInteger( value.getDate() )
      },
  
  
      /**
       * Tell if something is an integer.
       */
      isInteger: function( value ) {
          return {}.toString.call( value ).indexOf( 'Number' ) > -1 && value % 1 === 0
      },
  
  
      /**
       * Create ARIA attribute strings.
       */
      ariaAttr: ariaAttr
  } //PickerConstructor._
  
  
  
  /**
   * Extend the picker with a component and defaults.
   */
  PickerConstructor.extend = function( name, Component ) {
  
      // Extend jQuery.
      $.fn[ name ] = function( options, action ) {
  
          // Grab the component data.
          var componentData = this.data( name )
  
          // If the picker is requested, return the data object.
          if ( options == 'picker' ) {
              return componentData
          }
  
          // If the component data exists and `options` is a string, carry out the action.
          if ( componentData && typeof options == 'string' ) {
              return PickerConstructor._.trigger( componentData[ options ], componentData, [ action ] )
          }
  
          // Otherwise go through each matched element and if the component
          // doesn’t exist, create a new picker using `this` element
          // and merging the defaults and options with a deep copy.
          return this.each( function() {
              var $this = $( this )
              if ( !$this.data( name ) ) {
                  new PickerConstructor( this, name, Component, options )
              }
          })
      }
  
      // Set the defaults.
      $.fn[ name ].defaults = Component.defaults
  } //PickerConstructor.extend
  
  
  
  function aria(element, attribute, value) {
      if ( $.isPlainObject(attribute) ) {
          for ( var key in attribute ) {
              ariaSet(element, key, attribute[key])
          }
      }
      else {
          ariaSet(element, attribute, value)
      }
  }
  function ariaSet(element, attribute, value) {
      element.setAttribute(
          (attribute == 'role' ? '' : 'aria-') + attribute,
          value
      )
  }
  function ariaAttr(attribute, data) {
      if ( !$.isPlainObject(attribute) ) {
          attribute = { attribute: data }
      }
      data = ''
      for ( var key in attribute ) {
          var attr = (key == 'role' ? '' : 'aria-') + key,
              attrVal = attribute[key]
          data += attrVal == null ? '' : attr + '="' + attribute[key] + '"'
      }
      return data
  }
  
  // IE8 bug throws an error for activeElements within iframes.
  function getActiveElement() {
      try {
          return document.activeElement
      } catch ( err ) { }
  }
  
  
  
  // Expose the picker constructor.
  return PickerConstructor
  
  
  }));
  
  
  /*!
   * Date picker for pickadate.js v3.5.6
   * http://amsul.github.io/pickadate.js/date.htm
   */
  
  (function ( factory ) {
  
      // AMD.
      if ( typeof define == 'function' && define.amd )
          define( ['./picker', 'jquery'], factory )
  
      // Node.js/browserify.
      else if ( typeof exports == 'object' )
          module.exports = factory( require('./picker.js'), require('jquery') )
  
      // Browser globals.
      else factory( Picker, jQuery )
  
  }(function( Picker, $ ) {
  
  
  /**
   * Globals and constants
   */
  var DAYS_IN_WEEK = 7,
      WEEKS_IN_CALENDAR = 6,
      _ = Picker._
  
  
  
  /**
   * The date picker constructor
   */
  function DatePicker( picker, settings ) {
  
      var calendar = this,
          element = picker.$node[ 0 ],
          elementValue = element.value,
          elementDataValue = picker.$node.data( 'value' ),
          valueString = elementDataValue || elementValue,
          formatString = elementDataValue ? settings.formatSubmit : settings.format,
          isRTL = function() {
  
              return element.currentStyle ?
  
                  // For IE.
                  element.currentStyle.direction == 'rtl' :
  
                  // For normal browsers.
                  getComputedStyle( picker.$root[0] ).direction == 'rtl'
          }
  
      calendar.settings = settings
      calendar.$node = picker.$node
  
      // The queue of methods that will be used to build item objects.
      calendar.queue = {
          min: 'measure create',
          max: 'measure create',
          now: 'now create',
          select: 'parse create validate',
          highlight: 'parse navigate create validate',
          view: 'parse create validate viewset',
          disable: 'deactivate',
          enable: 'activate'
      }
  
      // The component's item object.
      calendar.item = {}
  
      calendar.item.clear = null
      calendar.item.disable = ( settings.disable || [] ).slice( 0 )
      calendar.item.enable = -(function( collectionDisabled ) {
          return collectionDisabled[ 0 ] === true ? collectionDisabled.shift() : -1
      })( calendar.item.disable )
  
      calendar.
          set( 'min', settings.min ).
          set( 'max', settings.max ).
          set( 'now' )
  
      // When there’s a value, set the `select`, which in turn
      // also sets the `highlight` and `view`.
      if ( valueString ) {
          calendar.set( 'select', valueString, {
              format: formatString,
              defaultValue: true
          })
      }
  
      // If there’s no value, default to highlighting “today”.
      else {
          calendar.
              set( 'select', null ).
              set( 'highlight', calendar.item.now )
      }
  
  
      // The keycode to movement mapping.
      calendar.key = {
          40: 7, // Down
          38: -7, // Up
          39: function() { return isRTL() ? -1 : 1 }, // Right
          37: function() { return isRTL() ? 1 : -1 }, // Left
          go: function( timeChange ) {
              var highlightedObject = calendar.item.highlight,
                  targetDate = new Date( highlightedObject.year, highlightedObject.month, highlightedObject.date + timeChange )
              calendar.set(
                  'highlight',
                  targetDate,
                  { interval: timeChange }
              )
              this.render()
          }
      }
  
  
      // Bind some picker events.
      picker.
          on( 'render', function() {
              picker.$root.find( '.' + settings.klass.selectMonth ).on( 'change', function() {
                  var value = this.value
                  if ( value ) {
                      picker.set( 'highlight', [ picker.get( 'view' ).year, value, picker.get( 'highlight' ).date ] )
                      picker.$root.find( '.' + settings.klass.selectMonth ).trigger( 'focus' )
                  }
              })
              picker.$root.find( '.' + settings.klass.selectYear ).on( 'change', function() {
                  var value = this.value
                  if ( value ) {
                      picker.set( 'highlight', [ value, picker.get( 'view' ).month, picker.get( 'highlight' ).date ] )
                      picker.$root.find( '.' + settings.klass.selectYear ).trigger( 'focus' )
                  }
              })
          }, 1 ).
          on( 'open', function() {
              var includeToday = ''
              if ( calendar.disabled( calendar.get('now') ) ) {
                  includeToday = ':not(.' + settings.klass.buttonToday + ')'
              }
              picker.$root.find( 'button' + includeToday + ', select' ).attr( 'disabled', false )
          }, 1 ).
          on( 'close', function() {
              picker.$root.find( 'button, select' ).attr( 'disabled', true )
          }, 1 )
  
  } //DatePicker
  
  
  /**
   * Set a datepicker item object.
   */
  DatePicker.prototype.set = function( type, value, options ) {
  
      var calendar = this,
          calendarItem = calendar.item
  
      // If the value is `null` just set it immediately.
      if ( value === null ) {
          if ( type == 'clear' ) type = 'select'
          calendarItem[ type ] = value
          return calendar
      }
  
      // Otherwise go through the queue of methods, and invoke the functions.
      // Update this as the time unit, and set the final value as this item.
      // * In the case of `enable`, keep the queue but set `disable` instead.
      //   And in the case of `flip`, keep the queue but set `enable` instead.
      calendarItem[ ( type == 'enable' ? 'disable' : type == 'flip' ? 'enable' : type ) ] = calendar.queue[ type ].split( ' ' ).map( function( method ) {
          value = calendar[ method ]( type, value, options )
          return value
      }).pop()
  
      // Check if we need to cascade through more updates.
      if ( type == 'select' ) {
          calendar.set( 'highlight', calendarItem.select, options )
      }
      else if ( type == 'highlight' ) {
          calendar.set( 'view', calendarItem.highlight, options )
      }
      else if ( type.match( /^(flip|min|max|disable|enable)$/ ) ) {
          if ( calendarItem.select && calendar.disabled( calendarItem.select ) ) {
              calendar.set( 'select', calendarItem.select, options )
          }
          if ( calendarItem.highlight && calendar.disabled( calendarItem.highlight ) ) {
              calendar.set( 'highlight', calendarItem.highlight, options )
          }
      }
  
      return calendar
  } //DatePicker.prototype.set
  
  
  /**
   * Get a datepicker item object.
   */
  DatePicker.prototype.get = function( type ) {
      return this.item[ type ]
  } //DatePicker.prototype.get
  
  
  /**
   * Create a picker date object.
   */
  DatePicker.prototype.create = function( type, value, options ) {
  
      var isInfiniteValue,
          calendar = this
  
      // If there’s no value, use the type as the value.
      value = value === undefined ? type : value
  
  
      // If it’s infinity, update the value.
      if ( value == -Infinity || value == Infinity ) {
          isInfiniteValue = value
      }
  
      // If it’s an object, use the native date object.
      else if ( $.isPlainObject( value ) && _.isInteger( value.pick ) ) {
          value = value.obj
      }
  
      // If it’s an array, convert it into a date and make sure
      // that it’s a valid date – otherwise default to today.
      else if ( $.isArray( value ) ) {
          value = new Date( value[ 0 ], value[ 1 ], value[ 2 ] )
          value = _.isDate( value ) ? value : calendar.create().obj
      }
  
      // If it’s a number or date object, make a normalized date.
      else if ( _.isInteger( value ) || _.isDate( value ) ) {
          value = calendar.normalize( new Date( value ), options )
      }
  
      // If it’s a literal true or any other case, set it to now.
      else /*if ( value === true )*/ {
          value = calendar.now( type, value, options )
      }
  
      // Return the compiled object.
      return {
          year: isInfiniteValue || value.getFullYear(),
          month: isInfiniteValue || value.getMonth(),
          date: isInfiniteValue || value.getDate(),
          day: isInfiniteValue || value.getDay(),
          obj: isInfiniteValue || value,
          pick: isInfiniteValue || value.getTime()
      }
  } //DatePicker.prototype.create
  
  
  /**
   * Create a range limit object using an array, date object,
   * literal “true”, or integer relative to another time.
   */
  DatePicker.prototype.createRange = function( from, to ) {
  
      var calendar = this,
          createDate = function( date ) {
              if ( date === true || $.isArray( date ) || _.isDate( date ) ) {
                  return calendar.create( date )
              }
              return date
          }
  
      // Create objects if possible.
      if ( !_.isInteger( from ) ) {
          from = createDate( from )
      }
      if ( !_.isInteger( to ) ) {
          to = createDate( to )
      }
  
      // Create relative dates.
      if ( _.isInteger( from ) && $.isPlainObject( to ) ) {
          from = [ to.year, to.month, to.date + from ];
      }
      else if ( _.isInteger( to ) && $.isPlainObject( from ) ) {
          to = [ from.year, from.month, from.date + to ];
      }
  
      return {
          from: createDate( from ),
          to: createDate( to )
      }
  } //DatePicker.prototype.createRange
  
  
  /**
   * Check if a date unit falls within a date range object.
   */
  DatePicker.prototype.withinRange = function( range, dateUnit ) {
      range = this.createRange(range.from, range.to)
      return dateUnit.pick >= range.from.pick && dateUnit.pick <= range.to.pick
  }
  
  
  /**
   * Check if two date range objects overlap.
   */
  DatePicker.prototype.overlapRanges = function( one, two ) {
  
      var calendar = this
  
      // Convert the ranges into comparable dates.
      one = calendar.createRange( one.from, one.to )
      two = calendar.createRange( two.from, two.to )
  
      return calendar.withinRange( one, two.from ) || calendar.withinRange( one, two.to ) ||
          calendar.withinRange( two, one.from ) || calendar.withinRange( two, one.to )
  }
  
  
  /**
   * Get the date today.
   */
  DatePicker.prototype.now = function( type, value, options ) {
      value = new Date()
      if ( options && options.rel ) {
          value.setDate( value.getDate() + options.rel )
      }
      return this.normalize( value, options )
  }
  
  
  /**
   * Navigate to next/prev month.
   */
  DatePicker.prototype.navigate = function( type, value, options ) {
  
      var targetDateObject,
          targetYear,
          targetMonth,
          targetDate,
          isTargetArray = $.isArray( value ),
          isTargetObject = $.isPlainObject( value ),
          viewsetObject = this.item.view/*,
          safety = 100*/
  
  
      if ( isTargetArray || isTargetObject ) {
  
          if ( isTargetObject ) {
              targetYear = value.year
              targetMonth = value.month
              targetDate = value.date
          }
          else {
              targetYear = +value[0]
              targetMonth = +value[1]
              targetDate = +value[2]
          }
  
          // If we’re navigating months but the view is in a different
          // month, navigate to the view’s year and month.
          if ( options && options.nav && viewsetObject && viewsetObject.month !== targetMonth ) {
              targetYear = viewsetObject.year
              targetMonth = viewsetObject.month
          }
  
          // Figure out the expected target year and month.
          targetDateObject = new Date( targetYear, targetMonth + ( options && options.nav ? options.nav : 0 ), 1 )
          targetYear = targetDateObject.getFullYear()
          targetMonth = targetDateObject.getMonth()
  
          // If the month we’re going to doesn’t have enough days,
          // keep decreasing the date until we reach the month’s last date.
          while ( /*safety &&*/ new Date( targetYear, targetMonth, targetDate ).getMonth() !== targetMonth ) {
              targetDate -= 1
              /*safety -= 1
              if ( !safety ) {
                  throw 'Fell into an infinite loop while navigating to ' + new Date( targetYear, targetMonth, targetDate ) + '.'
              }*/
          }
  
          value = [ targetYear, targetMonth, targetDate ]
      }
  
      return value
  } //DatePicker.prototype.navigate
  
  
  /**
   * Normalize a date by setting the hours to midnight.
   */
  DatePicker.prototype.normalize = function( value/*, options*/ ) {
      value.setHours( 0, 0, 0, 0 )
      return value
  }
  
  
  /**
   * Measure the range of dates.
   */
  DatePicker.prototype.measure = function( type, value/*, options*/ ) {
  
      var calendar = this
  
      // If it’s anything false-y, remove the limits.
      if ( !value ) {
          value = type == 'min' ? -Infinity : Infinity
      }
  
      // If it’s a string, parse it.
      else if ( typeof value == 'string' ) {
          value = calendar.parse( type, value )
      }
  
      // If it's an integer, get a date relative to today.
      else if ( _.isInteger( value ) ) {
          value = calendar.now( type, value, { rel: value } )
      }
  
      return value
  } ///DatePicker.prototype.measure
  
  
  /**
   * Create a viewset object based on navigation.
   */
  DatePicker.prototype.viewset = function( type, dateObject/*, options*/ ) {
      return this.create([ dateObject.year, dateObject.month, 1 ])
  }
  
  
  /**
   * Validate a date as enabled and shift if needed.
   */
  DatePicker.prototype.validate = function( type, dateObject, options ) {
  
      var calendar = this,
  
          // Keep a reference to the original date.
          originalDateObject = dateObject,
  
          // Make sure we have an interval.
          interval = options && options.interval ? options.interval : 1,
  
          // Check if the calendar enabled dates are inverted.
          isFlippedBase = calendar.item.enable === -1,
  
          // Check if we have any enabled dates after/before now.
          hasEnabledBeforeTarget, hasEnabledAfterTarget,
  
          // The min & max limits.
          minLimitObject = calendar.item.min,
          maxLimitObject = calendar.item.max,
  
          // Check if we’ve reached the limit during shifting.
          reachedMin, reachedMax,
  
          // Check if the calendar is inverted and at least one weekday is enabled.
          hasEnabledWeekdays = isFlippedBase && calendar.item.disable.filter( function( value ) {
  
              // If there’s a date, check where it is relative to the target.
              if ( $.isArray( value ) ) {
                  var dateTime = calendar.create( value ).pick
                  if ( dateTime < dateObject.pick ) hasEnabledBeforeTarget = true
                  else if ( dateTime > dateObject.pick ) hasEnabledAfterTarget = true
              }
  
              // Return only integers for enabled weekdays.
              return _.isInteger( value )
          }).length/*,
  
          safety = 100*/
  
  
  
      // Cases to validate for:
      // [1] Not inverted and date disabled.
      // [2] Inverted and some dates enabled.
      // [3] Not inverted and out of range.
      //
      // Cases to **not** validate for:
      // • Navigating months.
      // • Not inverted and date enabled.
      // • Inverted and all dates disabled.
      // • ..and anything else.
      if ( !options || (!options.nav && !options.defaultValue) ) if (
          /* 1 */ ( !isFlippedBase && calendar.disabled( dateObject ) ) ||
          /* 2 */ ( isFlippedBase && calendar.disabled( dateObject ) && ( hasEnabledWeekdays || hasEnabledBeforeTarget || hasEnabledAfterTarget ) ) ||
          /* 3 */ ( !isFlippedBase && (dateObject.pick <= minLimitObject.pick || dateObject.pick >= maxLimitObject.pick) )
      ) {
  
  
          // When inverted, flip the direction if there aren’t any enabled weekdays
          // and there are no enabled dates in the direction of the interval.
          if ( isFlippedBase && !hasEnabledWeekdays && ( ( !hasEnabledAfterTarget && interval > 0 ) || ( !hasEnabledBeforeTarget && interval < 0 ) ) ) {
              interval *= -1
          }
  
  
          // Keep looping until we reach an enabled date.
          while ( /*safety &&*/ calendar.disabled( dateObject ) ) {
  
              /*safety -= 1
              if ( !safety ) {
                  throw 'Fell into an infinite loop while validating ' + dateObject.obj + '.'
              }*/
  
  
              // If we’ve looped into the next/prev month with a large interval, return to the original date and flatten the interval.
              if ( Math.abs( interval ) > 1 && ( dateObject.month < originalDateObject.month || dateObject.month > originalDateObject.month ) ) {
                  dateObject = originalDateObject
                  interval = interval > 0 ? 1 : -1
              }
  
  
              // If we’ve reached the min/max limit, reverse the direction, flatten the interval and set it to the limit.
              if ( dateObject.pick <= minLimitObject.pick ) {
                  reachedMin = true
                  interval = 1
                  dateObject = calendar.create([
                      minLimitObject.year,
                      minLimitObject.month,
                      minLimitObject.date + (dateObject.pick === minLimitObject.pick ? 0 : -1)
                  ])
              }
              else if ( dateObject.pick >= maxLimitObject.pick ) {
                  reachedMax = true
                  interval = -1
                  dateObject = calendar.create([
                      maxLimitObject.year,
                      maxLimitObject.month,
                      maxLimitObject.date + (dateObject.pick === maxLimitObject.pick ? 0 : 1)
                  ])
              }
  
  
              // If we’ve reached both limits, just break out of the loop.
              if ( reachedMin && reachedMax ) {
                  break
              }
  
  
              // Finally, create the shifted date using the interval and keep looping.
              dateObject = calendar.create([ dateObject.year, dateObject.month, dateObject.date + interval ])
          }
  
      } //endif
  
  
      // Return the date object settled on.
      return dateObject
  } //DatePicker.prototype.validate
  
  
  /**
   * Check if a date is disabled.
   */
  DatePicker.prototype.disabled = function( dateToVerify ) {
  
      var
          calendar = this,
  
          // Filter through the disabled dates to check if this is one.
          isDisabledMatch = calendar.item.disable.filter( function( dateToDisable ) {
  
              // If the date is a number, match the weekday with 0index and `firstDay` check.
              if ( _.isInteger( dateToDisable ) ) {
                  return dateToVerify.day === ( calendar.settings.firstDay ? dateToDisable : dateToDisable - 1 ) % 7
              }
  
              // If it’s an array or a native JS date, create and match the exact date.
              if ( $.isArray( dateToDisable ) || _.isDate( dateToDisable ) ) {
                  return dateToVerify.pick === calendar.create( dateToDisable ).pick
              }
  
              // If it’s an object, match a date within the “from” and “to” range.
              if ( $.isPlainObject( dateToDisable ) ) {
                  return calendar.withinRange( dateToDisable, dateToVerify )
              }
          })
  
      // If this date matches a disabled date, confirm it’s not inverted.
      isDisabledMatch = isDisabledMatch.length && !isDisabledMatch.filter(function( dateToDisable ) {
          return $.isArray( dateToDisable ) && dateToDisable[3] == 'inverted' ||
              $.isPlainObject( dateToDisable ) && dateToDisable.inverted
      }).length
  
      // Check the calendar “enabled” flag and respectively flip the
      // disabled state. Then also check if it’s beyond the min/max limits.
      return calendar.item.enable === -1 ? !isDisabledMatch : isDisabledMatch ||
          dateToVerify.pick < calendar.item.min.pick ||
          dateToVerify.pick > calendar.item.max.pick
  
  } //DatePicker.prototype.disabled
  
  
  /**
   * Parse a string into a usable type.
   */
  DatePicker.prototype.parse = function( type, value, options ) {
  
      var calendar = this,
          parsingObject = {}
  
      // If it’s already parsed, we’re good.
      if ( !value || typeof value != 'string' ) {
          return value
      }
  
      // We need a `.format` to parse the value with.
      if ( !( options && options.format ) ) {
          options = options || {}
          options.format = calendar.settings.format
      }
  
      // Convert the format into an array and then map through it.
      calendar.formats.toArray( options.format ).map( function( label ) {
  
          var
              // Grab the formatting label.
              formattingLabel = calendar.formats[ label ],
  
              // The format length is from the formatting label function or the
              // label length without the escaping exclamation (!) mark.
              formatLength = formattingLabel ? _.trigger( formattingLabel, calendar, [ value, parsingObject ] ) : label.replace( /^!/, '' ).length
  
          // If there's a format label, split the value up to the format length.
          // Then add it to the parsing object with appropriate label.
          if ( formattingLabel ) {
              parsingObject[ label ] = value.substr( 0, formatLength )
          }
  
          // Update the value as the substring from format length to end.
          value = value.substr( formatLength )
      })
  
      // Compensate for month 0index.
      return [
          parsingObject.yyyy || parsingObject.yy,
          +( parsingObject.mm || parsingObject.m ) - 1,
          parsingObject.dd || parsingObject.d
      ]
  } //DatePicker.prototype.parse
  
  
  /**
   * Various formats to display the object in.
   */
  DatePicker.prototype.formats = (function() {
  
      // Return the length of the first word in a collection.
      function getWordLengthFromCollection( string, collection, dateObject ) {
  
          // Grab the first word from the string.
          // Regex pattern from http://stackoverflow.com/q/150033
          var word = string.match( /[^\x00-\x7F]+|\w+/ )[ 0 ]
  
          // If there's no month index, add it to the date object
          if ( !dateObject.mm && !dateObject.m ) {
              dateObject.m = collection.indexOf( word ) + 1
          }
  
          // Return the length of the word.
          return word.length
      }
  
      // Get the length of the first word in a string.
      function getFirstWordLength( string ) {
          return string.match( /\w+/ )[ 0 ].length
      }
  
      return {
  
          d: function( string, dateObject ) {
  
              // If there's string, then get the digits length.
              // Otherwise return the selected date.
              return string ? _.digits( string ) : dateObject.date
          },
          dd: function( string, dateObject ) {
  
              // If there's a string, then the length is always 2.
              // Otherwise return the selected date with a leading zero.
              return string ? 2 : _.lead( dateObject.date )
          },
          ddd: function( string, dateObject ) {
  
              // If there's a string, then get the length of the first word.
              // Otherwise return the short selected weekday.
              return string ? getFirstWordLength( string ) : this.settings.weekdaysShort[ dateObject.day ]
          },
          dddd: function( string, dateObject ) {
  
              // If there's a string, then get the length of the first word.
              // Otherwise return the full selected weekday.
              return string ? getFirstWordLength( string ) : this.settings.weekdaysFull[ dateObject.day ]
          },
          m: function( string, dateObject ) {
  
              // If there's a string, then get the length of the digits
              // Otherwise return the selected month with 0index compensation.
              return string ? _.digits( string ) : dateObject.month + 1
          },
          mm: function( string, dateObject ) {
  
              // If there's a string, then the length is always 2.
              // Otherwise return the selected month with 0index and leading zero.
              return string ? 2 : _.lead( dateObject.month + 1 )
          },
          mmm: function( string, dateObject ) {
  
              var collection = this.settings.monthsShort
  
              // If there's a string, get length of the relevant month from the short
              // months collection. Otherwise return the selected month from that collection.
              return string ? getWordLengthFromCollection( string, collection, dateObject ) : collection[ dateObject.month ]
          },
          mmmm: function( string, dateObject ) {
  
              var collection = this.settings.monthsFull
  
              // If there's a string, get length of the relevant month from the full
              // months collection. Otherwise return the selected month from that collection.
              return string ? getWordLengthFromCollection( string, collection, dateObject ) : collection[ dateObject.month ]
          },
          yy: function( string, dateObject ) {
  
              // If there's a string, then the length is always 2.
              // Otherwise return the selected year by slicing out the first 2 digits.
              return string ? 2 : ( '' + dateObject.year ).slice( 2 )
          },
          yyyy: function( string, dateObject ) {
  
              // If there's a string, then the length is always 4.
              // Otherwise return the selected year.
              return string ? 4 : dateObject.year
          },
  
          // Create an array by splitting the formatting string passed.
          toArray: function( formatString ) { return formatString.split( /(d{1,4}|m{1,4}|y{4}|yy|!.)/g ) },
  
          // Format an object into a string using the formatting options.
          toString: function ( formatString, itemObject ) {
              var calendar = this
              return calendar.formats.toArray( formatString ).map( function( label ) {
                  return _.trigger( calendar.formats[ label ], calendar, [ 0, itemObject ] ) || label.replace( /^!/, '' )
              }).join( '' )
          }
      }
  })() //DatePicker.prototype.formats
  
  
  
  
  /**
   * Check if two date units are the exact.
   */
  DatePicker.prototype.isDateExact = function( one, two ) {
  
      var calendar = this
  
      // When we’re working with weekdays, do a direct comparison.
      if (
          ( _.isInteger( one ) && _.isInteger( two ) ) ||
          ( typeof one == 'boolean' && typeof two == 'boolean' )
       ) {
          return one === two
      }
  
      // When we’re working with date representations, compare the “pick” value.
      if (
          ( _.isDate( one ) || $.isArray( one ) ) &&
          ( _.isDate( two ) || $.isArray( two ) )
      ) {
          return calendar.create( one ).pick === calendar.create( two ).pick
      }
  
      // When we’re working with range objects, compare the “from” and “to”.
      if ( $.isPlainObject( one ) && $.isPlainObject( two ) ) {
          return calendar.isDateExact( one.from, two.from ) && calendar.isDateExact( one.to, two.to )
      }
  
      return false
  }
  
  
  /**
   * Check if two date units overlap.
   */
  DatePicker.prototype.isDateOverlap = function( one, two ) {
  
      var calendar = this,
          firstDay = calendar.settings.firstDay ? 1 : 0
  
      // When we’re working with a weekday index, compare the days.
      if ( _.isInteger( one ) && ( _.isDate( two ) || $.isArray( two ) ) ) {
          one = one % 7 + firstDay
          return one === calendar.create( two ).day + 1
      }
      if ( _.isInteger( two ) && ( _.isDate( one ) || $.isArray( one ) ) ) {
          two = two % 7 + firstDay
          return two === calendar.create( one ).day + 1
      }
  
      // When we’re working with range objects, check if the ranges overlap.
      if ( $.isPlainObject( one ) && $.isPlainObject( two ) ) {
          return calendar.overlapRanges( one, two )
      }
  
      return false
  }
  
  
  /**
   * Flip the “enabled” state.
   */
  DatePicker.prototype.flipEnable = function(val) {
      var itemObject = this.item
      itemObject.enable = val || (itemObject.enable == -1 ? 1 : -1)
  }
  
  
  /**
   * Mark a collection of dates as “disabled”.
   */
  DatePicker.prototype.deactivate = function( type, datesToDisable ) {
  
      var calendar = this,
          disabledItems = calendar.item.disable.slice(0)
  
  
      // If we’re flipping, that’s all we need to do.
      if ( datesToDisable == 'flip' ) {
          calendar.flipEnable()
      }
  
      else if ( datesToDisable === false ) {
          calendar.flipEnable(1)
          disabledItems = []
      }
  
      else if ( datesToDisable === true ) {
          calendar.flipEnable(-1)
          disabledItems = []
      }
  
      // Otherwise go through the dates to disable.
      else {
  
          datesToDisable.map(function( unitToDisable ) {
  
              var matchFound
  
              // When we have disabled items, check for matches.
              // If something is matched, immediately break out.
              for ( var index = 0; index < disabledItems.length; index += 1 ) {
                  if ( calendar.isDateExact( unitToDisable, disabledItems[index] ) ) {
                      matchFound = true
                      break
                  }
              }
  
              // If nothing was found, add the validated unit to the collection.
              if ( !matchFound ) {
                  if (
                      _.isInteger( unitToDisable ) ||
                      _.isDate( unitToDisable ) ||
                      $.isArray( unitToDisable ) ||
                      ( $.isPlainObject( unitToDisable ) && unitToDisable.from && unitToDisable.to )
                  ) {
                      disabledItems.push( unitToDisable )
                  }
              }
          })
      }
  
      // Return the updated collection.
      return disabledItems
  } //DatePicker.prototype.deactivate
  
  
  /**
   * Mark a collection of dates as “enabled”.
   */
  DatePicker.prototype.activate = function( type, datesToEnable ) {
  
      var calendar = this,
          disabledItems = calendar.item.disable,
          disabledItemsCount = disabledItems.length
  
      // If we’re flipping, that’s all we need to do.
      if ( datesToEnable == 'flip' ) {
          calendar.flipEnable()
      }
  
      else if ( datesToEnable === true ) {
          calendar.flipEnable(1)
          disabledItems = []
      }
  
      else if ( datesToEnable === false ) {
          calendar.flipEnable(-1)
          disabledItems = []
      }
  
      // Otherwise go through the disabled dates.
      else {
  
          datesToEnable.map(function( unitToEnable ) {
  
              var matchFound,
                  disabledUnit,
                  index,
                  isExactRange
  
              // Go through the disabled items and try to find a match.
              for ( index = 0; index < disabledItemsCount; index += 1 ) {
  
                  disabledUnit = disabledItems[index]
  
                  // When an exact match is found, remove it from the collection.
                  if ( calendar.isDateExact( disabledUnit, unitToEnable ) ) {
                      matchFound = disabledItems[index] = null
                      isExactRange = true
                      break
                  }
  
                  // When an overlapped match is found, add the “inverted” state to it.
                  else if ( calendar.isDateOverlap( disabledUnit, unitToEnable ) ) {
                      if ( $.isPlainObject( unitToEnable ) ) {
                          unitToEnable.inverted = true
                          matchFound = unitToEnable
                      }
                      else if ( $.isArray( unitToEnable ) ) {
                          matchFound = unitToEnable
                          if ( !matchFound[3] ) matchFound.push( 'inverted' )
                      }
                      else if ( _.isDate( unitToEnable ) ) {
                          matchFound = [ unitToEnable.getFullYear(), unitToEnable.getMonth(), unitToEnable.getDate(), 'inverted' ]
                      }
                      break
                  }
              }
  
              // If a match was found, remove a previous duplicate entry.
              if ( matchFound ) for ( index = 0; index < disabledItemsCount; index += 1 ) {
                  if ( calendar.isDateExact( disabledItems[index], unitToEnable ) ) {
                      disabledItems[index] = null
                      break
                  }
              }
  
              // In the event that we’re dealing with an exact range of dates,
              // make sure there are no “inverted” dates because of it.
              if ( isExactRange ) for ( index = 0; index < disabledItemsCount; index += 1 ) {
                  if ( calendar.isDateOverlap( disabledItems[index], unitToEnable ) ) {
                      disabledItems[index] = null
                      break
                  }
              }
  
              // If something is still matched, add it into the collection.
              if ( matchFound ) {
                  disabledItems.push( matchFound )
              }
          })
      }
  
      // Return the updated collection.
      return disabledItems.filter(function( val ) { return val != null })
  } //DatePicker.prototype.activate
  
  
  /**
   * Create a string for the nodes in the picker.
   */
  DatePicker.prototype.nodes = function( isOpen ) {
  
      var
          calendar = this,
          settings = calendar.settings,
          calendarItem = calendar.item,
          nowObject = calendarItem.now,
          selectedObject = calendarItem.select,
          highlightedObject = calendarItem.highlight,
          viewsetObject = calendarItem.view,
          disabledCollection = calendarItem.disable,
          minLimitObject = calendarItem.min,
          maxLimitObject = calendarItem.max,
  
  
          // Create the calendar table head using a copy of weekday labels collection.
          // * We do a copy so we don't mutate the original array.
          tableHead = (function( collection, fullCollection ) {
  
              // If the first day should be Monday, move Sunday to the end.
              if ( settings.firstDay ) {
                  collection.push( collection.shift() )
                  fullCollection.push( fullCollection.shift() )
              }
  
              // Create and return the table head group.
              return _.node(
                  'thead',
                  _.node(
                      'tr',
                      _.group({
                          min: 0,
                          max: DAYS_IN_WEEK - 1,
                          i: 1,
                          node: 'th',
                          item: function( counter ) {
                              return [
                                  collection[ counter ],
                                  settings.klass.weekdays,
                                  'scope=col title="' + fullCollection[ counter ] + '"'
                              ]
                          }
                      })
                  )
              ) //endreturn
          })( ( settings.showWeekdaysFull ? settings.weekdaysFull : settings.weekdaysShort ).slice( 0 ), settings.weekdaysFull.slice( 0 ) ), //tableHead
  
  
          // Create the nav for next/prev month.
          createMonthNav = function( next ) {
  
              // Otherwise, return the created month tag.
              return _.node(
                  'div',
                  ' ',
                  settings.klass[ 'nav' + ( next ? 'Next' : 'Prev' ) ] + (
  
                      // If the focused month is outside the range, disabled the button.
                      ( next && viewsetObject.year >= maxLimitObject.year && viewsetObject.month >= maxLimitObject.month ) ||
                      ( !next && viewsetObject.year <= minLimitObject.year && viewsetObject.month <= minLimitObject.month ) ?
                      ' ' + settings.klass.navDisabled : ''
                  ),
                  'data-nav=' + ( next || -1 ) + ' ' +
                  _.ariaAttr({
                      role: 'button',
                      controls: calendar.$node[0].id + '_table'
                  }) + ' ' +
                  'title="' + (next ? settings.labelMonthNext : settings.labelMonthPrev ) + '"'
              ) //endreturn
          }, //createMonthNav
  
  
          // Create the month label.
          createMonthLabel = function() {
  
              var monthsCollection = settings.showMonthsShort ? settings.monthsShort : settings.monthsFull
  
              // If there are months to select, add a dropdown menu.
              if ( settings.selectMonths ) {
  
                  return _.node( 'select',
                      _.group({
                          min: 0,
                          max: 11,
                          i: 1,
                          node: 'option',
                          item: function( loopedMonth ) {
  
                              return [
  
                                  // The looped month and no classes.
                                  monthsCollection[ loopedMonth ], 0,
  
                                  // Set the value and selected index.
                                  'value=' + loopedMonth +
                                  ( viewsetObject.month == loopedMonth ? ' selected' : '' ) +
                                  (
                                      (
                                          ( viewsetObject.year == minLimitObject.year && loopedMonth < minLimitObject.month ) ||
                                          ( viewsetObject.year == maxLimitObject.year && loopedMonth > maxLimitObject.month )
                                      ) ?
                                      ' disabled' : ''
                                  )
                              ]
                          }
                      }),
                      settings.klass.selectMonth,
                      ( isOpen ? '' : 'disabled' ) + ' ' +
                      _.ariaAttr({ controls: calendar.$node[0].id + '_table' }) + ' ' +
                      'title="' + settings.labelMonthSelect + '"'
                  )
              }
  
              // If there's a need for a month selector
              return _.node( 'div', monthsCollection[ viewsetObject.month ], settings.klass.month )
          }, //createMonthLabel
  
  
          // Create the year label.
          createYearLabel = function() {
  
              var focusedYear = viewsetObject.year,
  
              // If years selector is set to a literal "true", set it to 5. Otherwise
              // divide in half to get half before and half after focused year.
              numberYears = settings.selectYears === true ? 5 : ~~( settings.selectYears / 2 )
  
              // If there are years to select, add a dropdown menu.
              if ( numberYears ) {
  
                  var
                      minYear = minLimitObject.year,
                      maxYear = maxLimitObject.year,
                      lowestYear = focusedYear - numberYears,
                      highestYear = focusedYear + numberYears
  
                  // If the min year is greater than the lowest year, increase the highest year
                  // by the difference and set the lowest year to the min year.
                  if ( minYear > lowestYear ) {
                      highestYear += minYear - lowestYear
                      lowestYear = minYear
                  }
  
                  // If the max year is less than the highest year, decrease the lowest year
                  // by the lower of the two: available and needed years. Then set the
                  // highest year to the max year.
                  if ( maxYear < highestYear ) {
  
                      var availableYears = lowestYear - minYear,
                          neededYears = highestYear - maxYear
  
                      lowestYear -= availableYears > neededYears ? neededYears : availableYears
                      highestYear = maxYear
                  }
  
                  return _.node( 'select',
                      _.group({
                          min: lowestYear,
                          max: highestYear,
                          i: 1,
                          node: 'option',
                          item: function( loopedYear ) {
                              return [
  
                                  // The looped year and no classes.
                                  loopedYear, 0,
  
                                  // Set the value and selected index.
                                  'value=' + loopedYear + ( focusedYear == loopedYear ? ' selected' : '' )
                              ]
                          }
                      }),
                      settings.klass.selectYear,
                      ( isOpen ? '' : 'disabled' ) + ' ' + _.ariaAttr({ controls: calendar.$node[0].id + '_table' }) + ' ' +
                      'title="' + settings.labelYearSelect + '"'
                  )
              }
  
              // Otherwise just return the year focused
              return _.node( 'div', focusedYear, settings.klass.year )
          } //createYearLabel
  
  
      // Create and return the entire calendar.
      return _.node(
          'div',
          ( settings.selectYears ? createYearLabel() + createMonthLabel() : createMonthLabel() + createYearLabel() ) +
          createMonthNav() + createMonthNav( 1 ),
          settings.klass.header
      ) + _.node(
          'table',
          tableHead +
          _.node(
              'tbody',
              _.group({
                  min: 0,
                  max: WEEKS_IN_CALENDAR - 1,
                  i: 1,
                  node: 'tr',
                  item: function( rowCounter ) {
  
                      // If Monday is the first day and the month starts on Sunday, shift the date back a week.
                      var shiftDateBy = settings.firstDay && calendar.create([ viewsetObject.year, viewsetObject.month, 1 ]).day === 0 ? -7 : 0
  
                      return [
                          _.group({
                              min: DAYS_IN_WEEK * rowCounter - viewsetObject.day + shiftDateBy + 1, // Add 1 for weekday 0index
                              max: function() {
                                  return this.min + DAYS_IN_WEEK - 1
                              },
                              i: 1,
                              node: 'td',
                              item: function( targetDate ) {
  
                                  // Convert the time date from a relative date to a target date.
                                  targetDate = calendar.create([ viewsetObject.year, viewsetObject.month, targetDate + ( settings.firstDay ? 1 : 0 ) ])
  
                                  var isSelected = selectedObject && selectedObject.pick == targetDate.pick,
                                      isHighlighted = highlightedObject && highlightedObject.pick == targetDate.pick,
                                      isDisabled = disabledCollection && calendar.disabled( targetDate ) || targetDate.pick < minLimitObject.pick || targetDate.pick > maxLimitObject.pick,
                                      formattedDate = _.trigger( calendar.formats.toString, calendar, [ settings.format, targetDate ] )
  
                                  return [
                                      _.node(
                                          'div',
                                          targetDate.date,
                                          (function( klasses ) {
  
                                              // Add the `infocus` or `outfocus` classes based on month in view.
                                              klasses.push( viewsetObject.month == targetDate.month ? settings.klass.infocus : settings.klass.outfocus )
  
                                              // Add the `today` class if needed.
                                              if ( nowObject.pick == targetDate.pick ) {
                                                  klasses.push( settings.klass.now )
                                              }
  
                                              // Add the `selected` class if something's selected and the time matches.
                                              if ( isSelected ) {
                                                  klasses.push( settings.klass.selected )
                                              }
  
                                              // Add the `highlighted` class if something's highlighted and the time matches.
                                              if ( isHighlighted ) {
                                                  klasses.push( settings.klass.highlighted )
                                              }
  
                                              // Add the `disabled` class if something's disabled and the object matches.
                                              if ( isDisabled ) {
                                                  klasses.push( settings.klass.disabled )
                                              }
  
                                              return klasses.join( ' ' )
                                          })([ settings.klass.day ]),
                                          'data-pick=' + targetDate.pick + ' ' + _.ariaAttr({
                                              role: 'gridcell',
                                              label: formattedDate,
                                              selected: isSelected && calendar.$node.val() === formattedDate ? true : null,
                                              activedescendant: isHighlighted ? true : null,
                                              disabled: isDisabled ? true : null
                                          })
                                      ),
                                      '',
                                      _.ariaAttr({ role: 'presentation' })
                                  ] //endreturn
                              }
                          })
                      ] //endreturn
                  }
              })
          ),
          settings.klass.table,
          'id="' + calendar.$node[0].id + '_table' + '" ' + _.ariaAttr({
              role: 'grid',
              controls: calendar.$node[0].id,
              readonly: true
          })
      ) +
  
      // * For Firefox forms to submit, make sure to set the buttons’ `type` attributes as “button”.
      _.node(
          'div',
          _.node( 'button', settings.today, settings.klass.buttonToday,
              'type=button data-pick=' + nowObject.pick +
              ( isOpen && !calendar.disabled(nowObject) ? '' : ' disabled' ) + ' ' +
              _.ariaAttr({ controls: calendar.$node[0].id }) ) +
          _.node( 'button', settings.clear, settings.klass.buttonClear,
              'type=button data-clear=1' +
              ( isOpen ? '' : ' disabled' ) + ' ' +
              _.ariaAttr({ controls: calendar.$node[0].id }) ) +
          _.node('button', settings.close, settings.klass.buttonClose,
              'type=button data-close=true ' +
              ( isOpen ? '' : ' disabled' ) + ' ' +
              _.ariaAttr({ controls: calendar.$node[0].id }) ),
          settings.klass.footer
      ) //endreturn
  } //DatePicker.prototype.nodes
  
  
  
  
  /**
   * The date picker defaults.
   */
  DatePicker.defaults = (function( prefix ) {
  
      return {
  
          // The title label to use for the month nav buttons
          labelMonthNext: 'Next month',
          labelMonthPrev: 'Previous month',
  
          // The title label to use for the dropdown selectors
          labelMonthSelect: 'Select a month',
          labelYearSelect: 'Select a year',
  
          // Months and weekdays
          monthsFull: [ 'January', 'February', 'March', 'April', 'May', 'June', 'July', 'August', 'September', 'October', 'November', 'December' ],
          monthsShort: [ 'Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec' ],
          weekdaysFull: [ 'Sunday', 'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday' ],
          weekdaysShort: [ 'Sun', 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat' ],
  
          // Today and clear
          today: 'Today',
          clear: 'Clear',
          close: 'Close',
  
          // Picker close behavior
          closeOnSelect: true,
          closeOnClear: true,
  
          // The format to show on the `input` element
          format: 'd mmmm, yyyy',
  
          // Classes
          klass: {
  
              table: prefix + 'table',
  
              header: prefix + 'header',
  
              navPrev: prefix + 'nav--prev',
              navNext: prefix + 'nav--next',
              navDisabled: prefix + 'nav--disabled',
  
              month: prefix + 'month',
              year: prefix + 'year',
  
              selectMonth: prefix + 'select--month',
              selectYear: prefix + 'select--year',
  
              weekdays: prefix + 'weekday',
  
              day: prefix + 'day',
              disabled: prefix + 'day--disabled',
              selected: prefix + 'day--selected',
              highlighted: prefix + 'day--highlighted',
              now: prefix + 'day--today',
              infocus: prefix + 'day--infocus',
              outfocus: prefix + 'day--outfocus',
  
              footer: prefix + 'footer',
  
              buttonClear: prefix + 'button--clear',
              buttonToday: prefix + 'button--today',
              buttonClose: prefix + 'button--close'
          }
      }
  })( Picker.klasses().picker + '__' )
  
  
  
  
  
  /**
   * Extend the picker to add the date picker.
   */
  Picker.extend( 'pickadate', DatePicker )
  
  
  }));
  
  
  