text: $(document).ready(function () {
      // Alert Sliding
      $('div.alert').not('.alert-important').delay(5000).slideUp(300);
  
      // Datepicker 
      flatpickr('.flatpickr', {});
  
      // Datepicker - range
      flatpickr('.range', {
          mode: "range"
      });
  
      // DateTimePicker
      flatpickr('.datetimepicker', {
          enableTime: true,
          dateFormat: "Y-m-d H:i",
      });
  
      flatpickr('.timepicker', {
          enableTime: true,
          noCalendar: true,
          dateFormat: "H:i",
          minTime: "07:00",
          maxTime: "18:00",
      });
  
  });
  
  /*!
   * Bootstrap-select v1.12.13 (https://github.com/heimrichhannot/bootstrap-select)
   *
   * Copyright 2013-2017 bootstrap-select
   * Licensed under MIT (https://github.com/heimrichhannot/bootstrap-select/LICENSE)
   */
  
  (function (root, factory) {
      if (typeof define === 'function' && define.amd) {
          // AMD. Register as an anonymous module unless amdModuleId is set
          define(['jquery'], function (a0) {
              return (factory(a0));
          });
      } else if (typeof module === 'object' && module.exports) {
          // Node. Does not work with strict CommonJS, but
          // only CommonJS-like environments that support module.exports,
          // like Node.
          module.exports = factory(require('jquery'));
      } else {
          factory(root['jQuery']);
      }
  }(this, function (jQuery) {
  
      (function ($) {
          'use strict';
  
          //<editor-fold desc="Shims">
          if (!String.prototype.includes) {
              (function () {
                  'use strict'; // needed to support `apply`/`call` with `undefined`/`null`
                  var toString = {}.toString;
                  var defineProperty = (function () {
                      // IE 8 only supports `Object.defineProperty` on DOM elements
                      try {
                          var object = {};
                          var $defineProperty = Object.defineProperty;
                          var result = $defineProperty(object, object, object) && $defineProperty;
                      } catch (error) {}
                      return result;
                  }());
                  var indexOf = ''.indexOf;
                  var includes = function (search) {
                      if (this == null) {
                          throw new TypeError();
                      }
                      var string = String(this);
                      if (search && toString.call(search) == '[object RegExp]') {
                          throw new TypeError();
                      }
                      var stringLength = string.length;
                      var searchString = String(search);
                      var searchLength = searchString.length;
                      var position = arguments.length > 1 ? arguments[1] : undefined;
                      // `ToInteger`
                      var pos = position ? Number(position) : 0;
                      if (pos != pos) { // better `isNaN`
                          pos = 0;
                      }
                      var start = Math.min(Math.max(pos, 0), stringLength);
                      // Avoid the `indexOf` call if no match is possible
                      if (searchLength + start > stringLength) {
                          return false;
                      }
                      return indexOf.call(string, searchString, pos) != -1;
                  };
                  if (defineProperty) {
                      defineProperty(String.prototype, 'includes', {
                          'value': includes,
                          'configurable': true,
                          'writable': true,
                      });
                  } else {
                      String.prototype.includes = includes;
                  }
              }());
          }
  
          if (!String.prototype.startsWith) {
              (function () {
                  'use strict'; // needed to support `apply`/`call` with `undefined`/`null`
                  var defineProperty = (function () {
                      // IE 8 only supports `Object.defineProperty` on DOM elements
                      try {
                          var object = {};
                          var $defineProperty = Object.defineProperty;
                          var result = $defineProperty(object, object, object) && $defineProperty;
                      } catch (error) {}
                      return result;
                  }());
                  var toString = {}.toString;
                  var startsWith = function (search) {
                      if (this == null) {
                          throw new TypeError();
                      }
                      var string = String(this);
                      if (search && toString.call(search) == '[object RegExp]') {
                          throw new TypeError();
                      }
                      var stringLength = string.length;
                      var searchString = String(search);
                      var searchLength = searchString.length;
                      var position = arguments.length > 1 ? arguments[1] : undefined;
                      // `ToInteger`
                      var pos = position ? Number(position) : 0;
                      if (pos != pos) { // better `isNaN`
                          pos = 0;
                      }
                      var start = Math.min(Math.max(pos, 0), stringLength);
                      // Avoid the `indexOf` call if no match is possible
                      if (searchLength + start > stringLength) {
                          return false;
                      }
                      var index = -1;
                      while (++index < searchLength) {
                          if (string.charCodeAt(start + index) != searchString.charCodeAt(index)) {
                              return false;
                          }
                      }
                      return true;
                  };
                  if (defineProperty) {
                      defineProperty(String.prototype, 'startsWith', {
                          'value': startsWith,
                          'configurable': true,
                          'writable': true,
                      });
                  } else {
                      String.prototype.startsWith = startsWith;
                  }
              }());
          }
  
          if (!Object.keys) {
              Object.keys = function (
                  o, // object
                  k, // key
                  r // result array
              ) {
                  // initialize object and result
                  r = [];
                  // iterate over object keys
                  for (k in o)
                      // fill result array with non-prototypical keys
                      r.hasOwnProperty.call(o, k) && r.push(k);
                  // return result
                  return r;
              };
          }
  
          // set data-selected on select element if the value has been programmatically selected
          // prior to initialization of bootstrap-select
          // * consider removing or replacing an alternative method *
          var valHooks = {
              useDefault: false,
              _set: $.valHooks.select.set,
          };
  
          $.valHooks.select.set = function (elem, value) {
              if (value && !valHooks.useDefault) $(elem).data('selected', true);
  
              return valHooks._set.apply(this, arguments);
          };
  
          var changed_arguments = null;
          $.fn.triggerNative = function (eventName) {
              var el = this[0],
                  event;
  
              if (el.dispatchEvent) { // for modern browsers & IE9+
                  if (typeof Event === 'function') {
                      // For modern browsers
                      event = new Event(eventName, {
                          bubbles: true,
                      });
                  } else {
                      // For IE since it doesn't support Event constructor
                      event = document.createEvent('Event');
                      event.initEvent(eventName, true, false);
                  }
  
                  el.dispatchEvent(event);
              } else if (el.fireEvent) { // for IE8
                  event = document.createEventObject();
                  event.eventType = eventName;
                  el.fireEvent('on' + eventName, event);
              } else {
                  // fall back to jQuery.trigger
                  this.trigger(eventName);
              }
          };
          //</editor-fold>
  
          // Case insensitive contains search
          $.expr.pseudos.icontains = function (obj, index, meta) {
              var $obj = $(obj).find('span.dropdown-item-inner');
              var haystack = ($obj.data('tokens') || $obj.text()).toString().toUpperCase();
              return haystack.includes(meta[3].toUpperCase());
          };
  
          // Case insensitive begins search
          $.expr.pseudos.ibegins = function (obj, index, meta) {
              var $obj = $(obj).find('span.dropdown-item-inner');
              var haystack = ($obj.data('tokens') || $obj.text()).toString().toUpperCase();
              return haystack.startsWith(meta[3].toUpperCase());
          };
  
          // Case and accent insensitive contains search
          $.expr.pseudos.aicontains = function (obj, index, meta) {
              var $obj = $(obj).find('span.dropdown-item-inner');
              var haystack = ($obj.data('tokens') || $obj.data('normalizedText') || $obj.text()).toString().toUpperCase();
              return haystack.includes(meta[3].toUpperCase());
          };
  
          // Case and accent insensitive begins search
          $.expr.pseudos.aibegins = function (obj, index, meta) {
              var $obj = $(obj).find('span.dropdown-item-inner');
              var haystack = ($obj.data('tokens') || $obj.data('normalizedText') || $obj.text()).toString().toUpperCase();
              return haystack.startsWith(meta[3].toUpperCase());
          };
  
          /**
           * Remove all diatrics from the given text.
           * @access private
           * @param {String} text
           * @returns {String}
           */
          function normalizeToBase(text) {
              var rExps = [{
                      re: /[\xC0-\xC6]/g,
                      ch: 'A'
                  },
                  {
                      re: /[\xE0-\xE6]/g,
                      ch: 'a'
                  },
                  {
                      re: /[\xC8-\xCB]/g,
                      ch: 'E'
                  },
                  {
                      re: /[\xE8-\xEB]/g,
                      ch: 'e'
                  },
                  {
                      re: /[\xCC-\xCF]/g,
                      ch: 'I'
                  },
                  {
                      re: /[\xEC-\xEF]/g,
                      ch: 'i'
                  },
                  {
                      re: /[\xD2-\xD6]/g,
                      ch: 'O'
                  },
                  {
                      re: /[\xF2-\xF6]/g,
                      ch: 'o'
                  },
                  {
                      re: /[\xD9-\xDC]/g,
                      ch: 'U'
                  },
                  {
                      re: /[\xF9-\xFC]/g,
                      ch: 'u'
                  },
                  {
                      re: /[\xC7-\xE7]/g,
                      ch: 'c'
                  },
                  {
                      re: /[\xD1]/g,
                      ch: 'N'
                  },
                  {
                      re: /[\xF1]/g,
                      ch: 'n'
                  },
              ];
              $.each(rExps, function () {
                  text = text ? text.replace(this.re, this.ch) : '';
              });
              return text;
          }
  
          // List of HTML entities for escaping.
          var escapeMap = {
              '&': '&amp;',
              '<': '&lt;',
              '>': '&gt;',
              '"': '&quot;',
              '\'': '&#x27;',
              '`': '&#x60;',
          };
  
          var unescapeMap = {
              '&amp;': '&',
              '&lt;': '<',
              '&gt;': '>',
              '&quot;': '"',
              '&#x27;': '\'',
              '&#x60;': '`',
          };
  
          // Functions for escaping and unescaping strings to/from HTML interpolation.
          var createEscaper = function (map) {
              var escaper = function (match) {
                  return map[match];
              };
              // Regexes for identifying a key that needs to be escaped.
              var source = '(?:' + Object.keys(map).join('|') + ')';
              var testRegexp = RegExp(source);
              var replaceRegexp = RegExp(source, 'g');
              return function (string) {
                  string = string == null ? '' : '' + string;
                  return testRegexp.test(string) ? string.replace(replaceRegexp, escaper) : string;
              };
          };
  
          var htmlEscape = createEscaper(escapeMap);
          var htmlUnescape = createEscaper(unescapeMap);
  
          var Selectpicker = function (element, options) {
              // bootstrap-select has been initialized - revert valHooks.select.set back to its original function
              if (!valHooks.useDefault) {
                  $.valHooks.select.set = valHooks._set;
                  valHooks.useDefault = true;
              }
  
              this.$element = $(element);
              this.$newElement = null;
              this.$button = null;
              this.$menu = null;
              this.$lis = null;
              this.options = options;
  
              // If we have no title yet, try to pull it from the html title attribute (jQuery doesnt' pick it up as it's not a
              // data-attribute)
              if (this.options.title === null) {
                  this.options.title = this.$element.attr('title');
              }
  
              // Format window padding
              var winPad = this.options.windowPadding;
              if (typeof winPad === 'number') {
                  this.options.windowPadding = [winPad, winPad, winPad, winPad];
              }
  
              //Expose public methods
              this.val = Selectpicker.prototype.val;
              this.render = Selectpicker.prototype.render;
              this.refresh = Selectpicker.prototype.refresh;
              this.setStyle = Selectpicker.prototype.setStyle;
              this.selectAll = Selectpicker.prototype.selectAll;
              this.deselectAll = Selectpicker.prototype.deselectAll;
              this.destroy = Selectpicker.prototype.destroy;
              this.remove = Selectpicker.prototype.remove;
              this.show = Selectpicker.prototype.show;
              this.hide = Selectpicker.prototype.hide;
  
              this.init();
          };
  
          Selectpicker.VERSION = '1.12.2';
  
          // part of this is duplicated in i18n/defaults-en_US.js. Make sure to update both.
          Selectpicker.DEFAULTS = {
              noneSelectedText: 'Nothing selected',
              noneResultsText: 'No results matched {0}',
              countSelectedText: function (numSelected, numTotal) {
                  return (numSelected == 1) ? '{0} item selected' : '{0} items selected';
              },
              maxOptionsText: function (numAll, numGroup) {
                  return [
                      (numAll == 1) ? 'Limit reached ({n} item max)' : 'Limit reached ({n} items max)',
                      (numGroup == 1) ? 'Group limit reached ({n} item max)' : 'Group limit reached ({n} items max)',
                  ];
              },
              selectAllText: 'Select All',
              deselectAllText: 'Deselect All',
              doneButton: false,
              doneButtonText: 'Close',
              multipleSeparator: ', ',
              styleBase: 'btn',
              style: 'form-control font-weight-normal text-muted', // bootstrap4: btn-default replaced by btn-light
              size: 'auto',
              title: null,
              selectedTextFormat: 'values',
              width: false,
              container: false,
              hideDisabled: false,
              showSubtext: false,
              showIcon: true,
              showContent: true,
              dropupAuto: true,
              header: false,
              liveSearch: false,
              liveSearchPlaceholder: null,
              liveSearchNormalize: false,
              liveSearchStyle: 'contains',
              actionsBox: false,
              iconBase: 'fa',
              tickIcon: 'fa-check',
              showTick: false,
              template: {
                  caret: '<span class="caret"></span>',
              },
              maxOptions: false,
              mobile: false,
              selectOnTab: false,
              dropdownAlignRight: false,
              windowPadding: 0,
          };
  
          Selectpicker.prototype = {
  
              constructor: Selectpicker,
  
              init: function () {
                  var that = this,
                      id = this.$element.attr('id');
  
                  this.$element.addClass('bs-select-hidden');
  
                  // store originalIndex (key) and newIndex (value) in this.liObj for fast accessibility
                  // allows us to do this.$lis.eq(that.liObj[index]) instead of this.$lis.filter('[data-original-index="' + index + '"]')
                  this.liObj = {};
                  this.multiple = this.$element.prop('multiple');
                  this.autofocus = this.$element.prop('autofocus');
                  this.$newElement = this.createView();
                  this.$element.after(this.$newElement).appendTo(this.$newElement);
                  this.$button = this.$newElement.children('button');
                  this.$menu = this.$newElement.children('.dropdown-menu');
                  this.$menuInner = this.$menu.children('.inner');
                  this.$searchbox = this.$menu.find('input');
  
                  this.$element.removeClass('bs-select-hidden');
  
                  if (this.options.dropdownAlignRight === true) this.$menu.addClass('dropdown-menu-right');
  
                  if (typeof id !== 'undefined') {
                      this.$button.attr('data-id', id);
                      $('label[for="' + id + '"]').click(function (e) {
                          e.preventDefault();
                          that.$button.focus();
                      });
                  }
  
                  this.checkDisabled();
                  this.clickListener();
                  if (this.options.liveSearch) this.liveSearchListener();
                  this.render();
                  this.setStyle();
                  this.setWidth();
                  if (this.options.container) this.selectPosition();
                  this.$menu.data('this', this);
                  this.$newElement.data('this', this);
                  if (this.options.mobile) this.mobile();
  
                  this.$newElement.on({
                      'hide.bs.dropdown': function (e) {
                          that.$menuInner.attr('aria-expanded', false);
                          that.$element.trigger('hide.bs.select', e);
                      },
                      'hidden.bs.dropdown': function (e) {
                          that.$element.trigger('hidden.bs.select', e);
                      },
                      'show.bs.dropdown': function (e) {
                          that.$menuInner.attr('aria-expanded', true);
                          that.$element.trigger('show.bs.select', e);
                      },
                      'shown.bs.dropdown': function (e) {
                          that.$element.trigger('shown.bs.select', e);
                      },
                  });
  
                  if (that.$element[0].hasAttribute('required')) {
                      this.$element.on('invalid', function () {
                          that.$button.addClass('bs-invalid').focus();
  
                          that.$element.on({
                              'focus.bs.select': function () {
                                  that.$button.focus();
                                  that.$element.off('focus.bs.select');
                              },
                              'shown.bs.select': function () {
                                  that.$element.val(that.$element.val()) // set the value to hide the validation message in Chrome when menu is opened
                                      .off('shown.bs.select');
                              },
                              'rendered.bs.select': function () {
                                  // if select is no longer invalid, remove the bs-invalid class
                                  if (this.validity.valid) that.$button.removeClass('bs-invalid');
                                  that.$element.off('rendered.bs.select');
                              },
                          });
                      });
                  }
  
                  setTimeout(function () {
                      that.$element.trigger('loaded.bs.select');
                  });
              },
  
              createDropdown: function () {
                  // Options
                  // If we are multiple or showTick option is set, then add the show-tick class
                  var showTick = (this.multiple || this.options.showTick) ? ' show-tick' : '',
                      inputGroup = this.$element.parent().hasClass('input-group') ? ' input-group-btn' : '',
                      autofocus = this.autofocus ? ' autofocus' : '';
                  // Elements
                  var header = this.options.header ? '<div class="popover-title"><button type="button" class="close" aria-hidden="true">&times;</button>' + this.options.header + '</div>' : '';
                  var searchbox = this.options.liveSearch ?
                      '<div class="bs-searchbox">' +
                      '<input type="text" class="form-control" autocomplete="off"' +
                      (null === this.options.liveSearchPlaceholder ? '' : ' placeholder="' + htmlEscape(this.options.liveSearchPlaceholder) + '"') + ' role="textbox" aria-label="Search">' +
                      '</div>' :
                      '';
                  var actionsbox = this.multiple && this.options.actionsBox ?
                      '<div class="bs-actionsbox">' +
                      '<div class="btn-group btn-group-sm btn-block">' +
                      '<button type="button" class="actions-btn bs-select-all btn btn-default btn-light">' +
                      this.options.selectAllText +
                      '</button>' +
                      '<button type="button" class="actions-btn bs-deselect-all btn btn-default btn-light">' +
                      this.options.deselectAllText +
                      '</button>' +
                      '</div>' +
                      '</div>' :
                      '';
                  var donebutton = this.multiple && this.options.doneButton ?
                      '<div class="bs-donebutton">' +
                      '<div class="btn-group btn-block">' +
                      '<button type="button" class="btn btn-sm btn-default btn-light">' +
                      this.options.doneButtonText +
                      '</button>' +
                      '</div>' +
                      '</div>' :
                      '';
                  var drop =
                      '<div class="btn-group bootstrap-select' + showTick + inputGroup + '">' +
                      '<button type="button" class="' + this.options.styleBase + ' dropdown-toggle" data-toggle="dropdown"' + autofocus + ' role="button">' +
                      '<span class="filter-option pull-left"></span>&nbsp;' +
                      '<span class="bs-caret">' +
                      this.options.template.caret +
                      '</span>' +
                      '</button>' +
                      '<div class="dropdown-menu open" role="combobox">' +
                      header +
                      searchbox +
                      actionsbox +
                      '<div class="dropdown-menu inner" role="listbox" aria-expanded="false">' +
                      '</div>' +
                      donebutton +
                      '</div>' +
                      '</div>';
  
                  return $(drop);
              },
  
              createView: function () {
                  var $drop = this.createDropdown(),
                      li = this.createLi();
  
                  $drop.find('div.inner')[0].innerHTML = li;
                  return $drop;
              },
  
              reloadLi: function () {
                  // rebuild
                  var li = this.createLi();
                  this.$menuInner[0].innerHTML = li;
              },
  
              createLi: function () {
                  var that = this,
                      _li = [],
                      optID = 0,
                      titleOption = document.createElement('option'),
                      liIndex = -1; // increment liIndex whenever a new <li> element is created to ensure liObj is correct
  
                  // Helper functions
                  /**
                   * @param content
                   * @param [index]
                   * @param [classes]
                   * @param [optgroup]
                   * @returns {string}
                   */
                  var generateA = function (content, index, classes, optgroup) {
                      classes = 'dropdown-item ' + (classes || '');
                      return '<a tabindex="0"' +
                          ((typeof classes !== 'undefined' && '' !== classes) ? ' class="' + classes + '"' : '') +
                          ((typeof index !== 'undefined' && null !== index) ? ' data-original-index="' + index + '"' : '') +
                          ((typeof optgroup !== 'undefined' && null !== optgroup) ? 'data-optgroup="' + optgroup + '"' : '') +
                          '>' + content + '</a>';
                  };
  
                  var generateDiv = function (content, classes, optgroup) {
                      return '<div' +
                          ((typeof classes !== 'undefined' && '' !== classes) ? ' class="' + classes + '"' : '') +
                          ((typeof optgroup !== 'undefined' && null !== optgroup) ? ' data-optgroup="' + optgroup + '"' : '') +
                          '>' + content + '</div>';
                  };
  
                  /**
                   * @param text
                   * @param [classes]
                   * @param [inline]
                   * @param [tokens]
                   * @returns {string}
                   */
                  var generateSpan = function (text, classes, inline, tokens) {
                      // support bootstrap v4: http://v4-alpha.getbootstrap.com/components/dropdowns/#single-button-dropdowns
                      classes = 'dropdown-item-inner ' + (classes || '');
                      return '<span' +
                          (typeof classes !== 'undefined' ? ' class="' + classes + '"' : '') +
                          (inline ? ' style="' + inline + '"' : '') +
                          (that.options.liveSearchNormalize ? ' data-normalized-text="' + normalizeToBase(htmlEscape($(text).html())) + '"' : '') +
                          (typeof tokens !== 'undefined' || tokens !== null ? ' data-tokens="' + tokens + '"' : '') +
                          ' role="option">' + text +
                          '<span class="' + that.options.iconBase + ' ' + that.options.tickIcon + ' check-mark"></span>' +
                          '</span>';
                  };
  
                  if (this.options.title && !this.multiple) {
                      // this option doesn't create a new <li> element, but does add a new option, so liIndex is decreased
                      // since liObj is recalculated on every refresh, liIndex needs to be decreased even if the titleOption is already appended
                      liIndex--;
  
                      if (!this.$element.find('.bs-title-option').length) {
                          // Use native JS to prepend option (faster)
                          var element = this.$element[0];
                          titleOption.className = 'bs-title-option';
                          titleOption.innerHTML = this.options.title;
                          titleOption.value = '';
                          element.insertBefore(titleOption, element.firstChild);
                          // Check if selected or data-selected attribute is already set on an option. If not, select the titleOption option.
                          // the selected item may have been changed by user or programmatically before the bootstrap select plugin runs,
                          // if so, the select will have the data-selected attribute
                          var $opt = $(element.options[element.selectedIndex]);
                          if ($opt.attr('selected') === undefined && this.$element.data('selected') === undefined) {
                              titleOption.selected = true;
                          }
                      }
                  }
  
                  var $selectOptions = this.$element.find('option');
  
                  $selectOptions.each(function (index) {
                      var $this = $(this);
  
                      liIndex++;
  
                      if ($this.hasClass('bs-title-option')) return;
  
                      // Get the class and text for the option
                      var optionClass = this.className || '',
                          inline = htmlEscape(this.style.cssText),
                          text = $this.data('content') ? $this.data('content') : $this.html(),
                          tokens = $this.data('tokens') ? $this.data('tokens') : null,
                          subtext = typeof $this.data('subtext') !== 'undefined' ? '<small class="text-muted">' + $this.data('subtext') + '</small>' : '',
                          icon = typeof $this.data('icon') !== 'undefined' ? '<span class="' + that.options.iconBase + ' ' + $this.data('icon') + '"></span> ' : '',
                          $parent = $this.parent(),
                          isOptgroup = $parent[0].tagName === 'OPTGROUP',
                          isOptgroupDisabled = isOptgroup && $parent[0].disabled,
                          isDisabled = this.disabled || isOptgroupDisabled,
                          prevHiddenIndex;
  
                      if (icon !== '' && isDisabled) {
                          icon = '<span>' + icon + '</span>';
                      }
  
                      if (that.options.hideDisabled && (isDisabled && !isOptgroup || isOptgroupDisabled)) {
                          // set prevHiddenIndex - the index of the first hidden option in a group of hidden options
                          // used to determine whether or not a divider should be placed after an optgroup if there are
                          // hidden options between the optgroup and the first visible option
                          prevHiddenIndex = $this.data('prevHiddenIndex');
                          $this.next().data('prevHiddenIndex', (prevHiddenIndex !== undefined ? prevHiddenIndex : index));
  
                          liIndex--;
                          return;
                      }
  
                      if (!$this.data('content')) {
                          // Prepend any icon and append any subtext to the main text.
                          text = icon + '<span class="text">' + text + subtext + '</span>';
                      }
  
                      if (isOptgroup && $this.data('divider') !== true) {
                          if (that.options.hideDisabled && isDisabled) {
                              if ($parent.data('allOptionsDisabled') === undefined) {
                                  var $options = $parent.children();
                                  $parent.data('allOptionsDisabled', $options.filter(':disabled').length === $options.length);
                              }
  
                              if ($parent.data('allOptionsDisabled')) {
                                  liIndex--;
                                  return;
                              }
                          }
  
                          var optGroupClass = ' ' + $parent[0].className || '';
  
                          if ($this.index() === 0) { // Is it the first option of the optgroup?
                              optID += 1;
  
                              // Get the opt group label
                              var label = $parent[0].label,
                                  labelSubtext = typeof $parent.data('subtext') !== 'undefined' ? '<small class="text-muted">' + $parent.data('subtext') + '</small>' : '',
                                  labelIcon = $parent.data('icon') ? '<span class="' + that.options.iconBase + ' ' + $parent.data('icon') + '"></span> ' : '';
  
                              label = labelIcon + '<span class="text">' + htmlEscape(label) + labelSubtext + '</span>';
  
                              if (index !== 0 && _li.length > 0) { // Is it NOT the first option of the select && are there elements in the dropdown?
                                  liIndex++;
                                  _li.push(generateDiv('', 'dropdown-divider', optID + 'div'));
                              }
                              liIndex++;
                              _li.push(generateDiv(label, 'dropdown-header' + optGroupClass, optID));
                          }
  
                          if (that.options.hideDisabled && isDisabled) {
                              liIndex--;
                              return;
                          }
  
                          _li.push(generateA(generateSpan(text, 'opt ' + optionClass + optGroupClass, inline, tokens), index, '', optID));
                      } else if ($this.data('divider') === true) {
                          _li.push(generateDiv('', 'dropdown-divider', optID + 'div'));
                      } else if ($this.data('hidden') === true) {
                          // set prevHiddenIndex - the index of the first hidden option in a group of hidden options
                          // used to determine whether or not a divider should be placed after an optgroup if there are
                          // hidden options between the optgroup and the first visible option
                          prevHiddenIndex = $this.data('prevHiddenIndex');
                          $this.next().data('prevHiddenIndex', (prevHiddenIndex !== undefined ? prevHiddenIndex : index));
  
                          _li.push(generateA(generateSpan(text, optionClass, inline, tokens), index, 'hidden is-hidden'));
                      } else {
                          var showDivider = this.previousElementSibling && this.previousElementSibling.tagName === 'OPTGROUP';
  
                          // if previous element is not an optgroup and hideDisabled is true
                          if (!showDivider && that.options.hideDisabled) {
                              prevHiddenIndex = $this.data('prevHiddenIndex');
  
                              if (prevHiddenIndex !== undefined) {
                                  // select the element **before** the first hidden element in the group
                                  var prevHidden = $selectOptions.eq(prevHiddenIndex)[0].previousElementSibling;
  
                                  if (prevHidden && prevHidden.tagName === 'OPTGROUP' && !prevHidden.disabled) {
                                      showDivider = true;
                                  }
                              }
                          }
  
                          if (showDivider) {
                              liIndex++;
                              _li.push(generateDiv('', 'dropdown-divider', optID + 'div'));
                          }
                          _li.push(generateA(generateSpan(text, optionClass, inline, tokens), index));
                      }
  
                      that.liObj[index] = liIndex;
                  });
  
                  //If we are not multiple, we don't have a selected item, and we don't have a title, select the first element so something is set in the button
                  if (!this.multiple && this.$element.find('option:selected').length === 0 && !this.options.title) {
                      this.$element.find('option').eq(0).prop('selected', true).attr('selected', 'selected');
                  }
  
                  return _li.join('');
              },
  
              findLis: function () {
                  if (this.$lis == null) this.$lis = this.$menu.find('a, .dropdown-header, .dropdown-divider');
                  return this.$lis;
              },
  
              /**
               * @param [updateLi] defaults to true
               */
              render: function (updateLi) {
                  var that = this,
                      notDisabled,
                      $selectOptions = this.$element.find('option');
  
                  //Update the LI to match the SELECT
                  if (updateLi !== false) {
                      $selectOptions.each(function (index) {
                          var $lis = that.findLis().eq(that.liObj[index]);
  
                          that.setDisabled(index, this.disabled || this.parentNode.tagName === 'OPTGROUP' && this.parentNode.disabled, $lis);
                          that.setSelected(index, this.selected, $lis);
                      });
                  }
  
                  this.togglePlaceholder();
  
                  this.tabIndex();
  
                  var selectedItems = $selectOptions.map(function () {
                      if (this.selected) {
                          if (that.options.hideDisabled && (this.disabled || this.parentNode.tagName === 'OPTGROUP' && this.parentNode.disabled)) return;
  
                          var $this = $(this),
                              icon = $this.data('icon') && that.options.showIcon ? '<i class="' + that.options.iconBase + ' ' + $this.data('icon') + '"></i> ' : '',
                              subtext;
  
                          if (that.options.showSubtext && $this.data('subtext') && !that.multiple) {
                              subtext = ' <small class="text-muted">' + $this.data('subtext') + '</small>';
                          } else {
                              subtext = '';
                          }
                          if (typeof $this.attr('title') !== 'undefined') {
                              return $this.attr('title');
                          } else if ($this.data('content') && that.options.showContent) {
                              return $this.data('content').toString();
                          } else {
                              return icon + $this.html() + subtext;
                          }
                      }
                  }).toArray();
  
                  //Fixes issue in IE10 occurring when no default option is selected and at least one option is disabled
                  //Convert all the values into a comma delimited string
                  var title = !this.multiple ? selectedItems[0] : selectedItems.join(this.options.multipleSeparator);
  
                  //If this is multi select, and the selectText type is count, the show 1 of 2 selected etc..
                  if (this.multiple && this.options.selectedTextFormat.indexOf('count') > -1) {
                      var max = this.options.selectedTextFormat.split('>');
                      if ((max.length > 1 && selectedItems.length > max[1]) || (max.length == 1 && selectedItems.length >= 2)) {
                          notDisabled = this.options.hideDisabled ? ', [disabled]' : '';
                          var totalCount = $selectOptions.not('[data-divider="true"], [data-hidden="true"]' + notDisabled).length,
                              tr8nText = (typeof this.options.countSelectedText === 'function') ? this.options.countSelectedText(selectedItems.length, totalCount) : this.options.countSelectedText;
                          title = tr8nText.replace('{0}', selectedItems.length.toString()).replace('{1}', totalCount.toString());
                      }
                  }
  
                  if (this.options.title == undefined) {
                      this.options.title = this.$element.attr('title');
                  }
  
                  if (this.options.selectedTextFormat == 'static') {
                      title = this.options.title;
                  }
  
                  //If we dont have a title, then use the default, or if nothing is set at all, use the not selected text
                  if (!title) {
                      title = typeof this.options.title !== 'undefined' ? this.options.title : this.options.noneSelectedText;
                  }
  
                  //strip all HTML tags and trim the result, then unescape any escaped tags
                  this.$button.attr('title', htmlUnescape($.trim(title.replace(/<[^>]*>?/g, ''))));
                  this.$button.children('.filter-option').html(title);
  
                  this.$element.trigger('rendered.bs.select');
              },
  
              /**
               * @param [style]
               * @param [status]
               */
              setStyle: function (style, status) {
                  if (this.$element.attr('class')) {
                      this.$newElement.addClass(this.$element.attr('class').replace(/selectpicker|mobile-device|bs-select-hidden|validate\[.*\]/gi, ''));
                  }
  
                  var buttonClass = style ? style : this.options.style;
  
                  if (status == 'add') {
                      this.$button.addClass(buttonClass);
                  } else if (status == 'remove') {
                      this.$button.removeClass(buttonClass);
                  } else {
                      this.$button.removeClass(this.options.style);
                      this.$button.addClass(buttonClass);
                  }
              },
              updatePosition: function () {
                  // this fixes https://github.com/heimrichhannot/bootstrap-select/issues/4
                  var event = this.$menu.get(0).ownerDocument.createEvent('HTMLEvents');
                  event.initEvent('resize', true, false);
                  this.$menu.get(0).ownerDocument.dispatchEvent(event);
              },
              liHeight: function (refresh) {
                  if (!refresh && (this.options.size === false || this.sizeInfo)) return;
  
                  var newElement = document.createElement('div'),
                      menu = document.createElement('div'),
                      menuInner = document.createElement('ul'),
                      divider = document.createElement('a'),
                      li = document.createElement('a'),
                      a = document.createElement('span'),
                      text = document.createElement('span'),
                      header = this.options.header && this.$menu.find('.popover-title').length > 0 ? this.$menu.find('.popover-title')[0].cloneNode(true) : null,
                      search = this.options.liveSearch ? document.createElement('div') : null,
                      actions = this.options.actionsBox && this.multiple && this.$menu.find('.bs-actionsbox').length > 0 ? this.$menu.find('.bs-actionsbox')[0].cloneNode(true) : null,
                      doneButton = this.options.doneButton && this.multiple && this.$menu.find('.bs-donebutton').length > 0 ? this.$menu.find('.bs-donebutton')[0].cloneNode(true) : null;
  
                  text.className = 'text';
                  newElement.className = this.$menu[0].parentNode.className + ' show open'; // bootstrap 4 requires show instead of open
                  menu.className = 'dropdown-menu open show';
                  menuInner.className = 'dropdown-menu inner';
                  divider.className = 'dropdown-divider';
                  a.className = 'dropdown-item-inner';
  
                  text.appendChild(document.createTextNode('Inner text'));
  
                  a.appendChild(text);
                  li.appendChild(a);
                  menuInner.appendChild(li);
                  menuInner.appendChild(divider);
                  if (header) menu.appendChild(header);
                  if (search) {
                      var input = document.createElement('input');
                      search.className = 'bs-searchbox';
                      input.className = 'form-control';
                      search.appendChild(input);
                      menu.appendChild(search);
                  }
                  if (actions) menu.appendChild(actions);
                  menu.appendChild(menuInner);
                  if (doneButton) menu.appendChild(doneButton);
                  newElement.appendChild(menu);
  
                  document.body.appendChild(newElement);
  
                  var liHeight = a.offsetHeight,
                      headerHeight = header ? header.offsetHeight : 0,
                      searchHeight = search ? search.offsetHeight : 0,
                      actionsHeight = actions ? actions.offsetHeight : 0,
                      doneButtonHeight = doneButton ? doneButton.offsetHeight : 0,
                      dividerHeight = $(divider).outerHeight(true),
                      // fall back to jQuery if getComputedStyle is not supported
                      menuStyle = typeof getComputedStyle === 'function' ? getComputedStyle(menu) : false,
                      $menu = menuStyle ? null : $(menu),
                      menuPadding = {
                          vert: parseInt(menuStyle ? menuStyle.paddingTop : $menu.css('paddingTop')) +
                              parseInt(menuStyle ? menuStyle.paddingBottom : $menu.css('paddingBottom')) +
                              parseInt(menuStyle ? menuStyle.borderTopWidth : $menu.css('borderTopWidth')) +
                              parseInt(menuStyle ? menuStyle.borderBottomWidth : $menu.css('borderBottomWidth')),
                          horiz: parseInt(menuStyle ? menuStyle.paddingLeft : $menu.css('paddingLeft')) +
                              parseInt(menuStyle ? menuStyle.paddingRight : $menu.css('paddingRight')) +
                              parseInt(menuStyle ? menuStyle.borderLeftWidth : $menu.css('borderLeftWidth')) +
                              parseInt(menuStyle ? menuStyle.borderRightWidth : $menu.css('borderRightWidth')),
                      },
                      menuExtras = {
                          vert: menuPadding.vert +
                              parseInt(menuStyle ? menuStyle.marginTop : $menu.css('marginTop')) +
                              parseInt(menuStyle ? menuStyle.marginBottom : $menu.css('marginBottom')) + 2,
                          horiz: menuPadding.horiz +
                              parseInt(menuStyle ? menuStyle.marginLeft : $menu.css('marginLeft')) +
                              parseInt(menuStyle ? menuStyle.marginRight : $menu.css('marginRight')) + 2,
                      };
  
                  document.body.removeChild(newElement);
  
                  this.sizeInfo = {
                      liHeight: liHeight,
                      headerHeight: headerHeight,
                      searchHeight: searchHeight,
                      actionsHeight: actionsHeight,
                      doneButtonHeight: doneButtonHeight,
                      dividerHeight: dividerHeight,
                      menuPadding: menuPadding,
                      menuExtras: menuExtras,
                  };
              },
  
              setSize: function () {
                  this.findLis();
                  this.liHeight();
  
                  if (this.options.header) this.$menu.css('padding-top', 0);
                  if (this.options.size === false) return;
  
                  var that = this,
                      $menu = this.$menu,
                      $menuInner = this.$menuInner,
                      $window = $(window),
                      selectHeight = this.$newElement[0].offsetHeight,
                      selectWidth = this.$newElement[0].offsetWidth,
                      liHeight = this.sizeInfo['liHeight'],
                      headerHeight = this.sizeInfo['headerHeight'],
                      searchHeight = this.sizeInfo['searchHeight'],
                      actionsHeight = this.sizeInfo['actionsHeight'],
                      doneButtonHeight = this.sizeInfo['doneButtonHeight'],
                      divHeight = this.sizeInfo['dividerHeight'],
                      menuPadding = this.sizeInfo['menuPadding'],
                      menuExtras = this.sizeInfo['menuExtras'],
                      notDisabled = this.options.hideDisabled ? '.disabled' : '',
                      menuHeight,
                      menuWidth,
                      getHeight,
                      getWidth,
                      selectOffsetTop,
                      selectOffsetBot,
                      selectOffsetLeft,
                      selectOffsetRight,
                      getPos = function () {
                          var pos = that.$newElement.offset(),
                              $container = $(that.options.container),
                              containerPos;
  
                          if (that.options.container && !$container.is('body')) {
                              containerPos = $container.offset();
                              containerPos.top += parseInt($container.css('borderTopWidth'));
                              containerPos.left += parseInt($container.css('borderLeftWidth'));
                          } else {
                              containerPos = {
                                  top: 0,
                                  left: 0
                              };
                          }
  
                          var winPad = that.options.windowPadding;
                          selectOffsetTop = pos.top - containerPos.top - $window.scrollTop();
                          selectOffsetBot = $window.height() - selectOffsetTop - selectHeight - containerPos.top - winPad[2];
                          selectOffsetLeft = pos.left - containerPos.left - $window.scrollLeft();
                          selectOffsetRight = $window.width() - selectOffsetLeft - selectWidth - containerPos.left - winPad[1];
                          selectOffsetTop -= winPad[0];
                          selectOffsetLeft -= winPad[3];
                      };
  
                  getPos();
  
                  if (this.options.size === 'auto') {
                      var getSize = function () {
                          var minHeight,
                              hasClass = function (className, include) {
                                  return function (element) {
                                      if (include) {
                                          return (element.classList ? element.classList.contains(className) : $(element).hasClass(className));
                                      } else {
                                          return !(element.classList ? element.classList.contains(className) : $(element).hasClass(className));
                                      }
                                  };
                              },
                              lis = that.$menuInner[0].getElementsByTagName('a'),
                              lisVisible = Array.prototype.filter ? Array.prototype.filter.call(lis, hasClass('d-none', false)) : that.$lis.not('.d-none'),
                              optGroup = Array.prototype.filter ? Array.prototype.filter.call(lisVisible, hasClass('dropdown-header', true)) : lisVisible.filter('.dropdown-header');
  
                          getPos();
                          menuHeight = selectOffsetBot - menuExtras.vert;
                          menuWidth = selectOffsetRight - menuExtras.horiz;
  
                          if (that.options.container) {
                              if (!$menu.data('height')) $menu.data('height', $menu.height());
                              getHeight = $menu.data('height');
  
                              if (!$menu.data('width')) $menu.data('width', $menu.width());
                              getWidth = $menu.data('width');
                          } else {
                              getHeight = $menu.height();
                              getWidth = $menu.width();
                          }
  
                          if (that.options.dropupAuto) {
                              that.$newElement.toggleClass('dropup', selectOffsetTop > selectOffsetBot && (menuHeight - menuExtras.vert) < getHeight);
                          }
  
                          if (that.$newElement.hasClass('dropup')) {
                              menuHeight = selectOffsetTop - menuExtras.vert;
                          }
  
                          if (that.options.dropdownAlignRight === 'auto') {
                              $menu.toggleClass('dropdown-menu-right', selectOffsetLeft > selectOffsetRight && (menuWidth - menuExtras.horiz) < (getWidth - selectWidth));
                          }
  
                          if ((lisVisible.length + optGroup.length) > 3) {
                              minHeight = liHeight * 3 + menuExtras.vert - 2;
                          } else {
                              minHeight = 0;
                          }
  
                          $menu.css({
                              'max-height': menuHeight + 'px',
                              'overflow': 'hidden',
                              'min-height': minHeight + headerHeight + searchHeight + actionsHeight + doneButtonHeight + 'px',
                          });
                          $menuInner.css({
                              'max-height': menuHeight - headerHeight - searchHeight - actionsHeight - doneButtonHeight - menuPadding.vert + 'px',
                              'overflow-y': 'auto',
                              'min-height': Math.max(minHeight - menuPadding.vert, 0) + 'px',
                          });
                      };
                      getSize();
                      this.$searchbox.off('input.getSize propertychange.getSize').on('input.getSize propertychange.getSize', getSize);
                      $window.off('resize.getSize scroll.getSize').on('resize.getSize scroll.getSize', getSize);
                  } else if (this.options.size && this.options.size != 'auto' && this.$lis.not(notDisabled).length > this.options.size) {
                      var optIndex = this.$lis.not('.dropdown-divider').not(notDisabled).children().slice(0, this.options.size).last().parent().index(),
                          divLength = this.$lis.slice(0, optIndex + 1).filter('.dropdown-divider').length;
                      menuHeight = liHeight * this.options.size + divLength * divHeight + menuPadding.vert;
  
                      if (that.options.container) {
                          if (!$menu.data('height')) $menu.data('height', $menu.height());
                          getHeight = $menu.data('height');
                      } else {
                          getHeight = $menu.height();
                      }
  
                      if (that.options.dropupAuto) {
                          //noinspection JSUnusedAssignment
                          this.$newElement.toggleClass('dropup', selectOffsetTop > selectOffsetBot && (menuHeight - menuExtras.vert) < getHeight);
                      }
                      $menu.css({
                          'max-height': menuHeight + headerHeight + searchHeight + actionsHeight + doneButtonHeight + 'px',
                          'overflow': 'hidden',
                          'min-height': '',
                      });
                      $menuInner.css({
                          'max-height': menuHeight - menuPadding.vert + 'px',
                          'overflow-y': 'auto',
                          'min-height': '',
                      });
                  }
              },
  
              setWidth: function () {
                  if (this.options.width === 'auto') {
                      this.$menu.css('min-width', '0');
  
                      // Get correct width if element is hidden
                      var $selectClone = this.$menu.parent().clone().appendTo('body'),
                          $selectClone2 = this.options.container ? this.$newElement.clone().appendTo('body') : $selectClone,
                          ulWidth = $selectClone.children('.dropdown-menu').outerWidth(),
                          btnWidth = $selectClone2.css('width', 'auto').children('button').outerWidth();
  
                      $selectClone.remove();
                      $selectClone2.remove();
  
                      // Set width to whatever's larger, button title or longest option
                      this.$newElement.css('width', Math.max(ulWidth, btnWidth) + 'px');
                  } else if (this.options.width === 'fit') {
                      // Remove inline min-width so width can be changed from 'auto'
                      this.$menu.css('min-width', '');
                      this.$newElement.css('width', '').addClass('fit-width');
                  } else if (this.options.width) {
                      // Remove inline min-width so width can be changed from 'auto'
                      this.$menu.css('min-width', '');
                      this.$newElement.css('width', this.options.width);
                  } else {
                      // Remove inline min-width/width so width can be changed
                      this.$menu.css('min-width', '');
                      this.$newElement.css('width', '');
                  }
                  // Remove fit-width class if width is changed programmatically
                  if (this.$newElement.hasClass('fit-width') && this.options.width !== 'fit') {
                      this.$newElement.removeClass('fit-width');
                  }
              },
  
              selectPosition: function () {
                  this.$bsContainer = $('<div class="bs-container" />');
  
                  var that = this,
                      $container = $(this.options.container),
                      pos,
                      containerPos,
                      actualHeight,
                      getPlacement = function ($element) {
                          that.$bsContainer.addClass($element.attr('class').replace(/form-control|fit-width/gi, '')).toggleClass('dropup', $element.hasClass('dropup'));
                          pos = $element.offset();
  
                          if (!$container.is('body')) {
                              containerPos = $container.offset();
                              containerPos.top += parseInt($container.css('borderTopWidth')) - $container.scrollTop();
                              containerPos.left += parseInt($container.css('borderLeftWidth')) - $container.scrollLeft();
                          } else {
                              containerPos = {
                                  top: 0,
                                  left: 0
                              };
                          }
  
                          actualHeight = $element.hasClass('dropup') ? 0 : $element[0].offsetHeight;
  
                          that.$bsContainer.css({
                              'top': pos.top - containerPos.top + actualHeight,
                              'left': pos.left - containerPos.left,
                              'width': $element[0].offsetWidth,
                          });
                      };
  
                  this.$button.on('click', function () {
                      var $this = $(this);
  
                      if (that.isDisabled()) {
                          return;
                      }
  
                      getPlacement(that.$newElement);
  
                      that.$bsContainer.appendTo(that.options.container).toggleClass('open', !$this.hasClass('open')).append(that.$menu);
                  });
  
                  $(window).on('resize scroll', function () {
                      getPlacement(that.$newElement);
                  });
  
                  this.$element.on('hide.bs.select', function () {
                      that.$menu.data('height', that.$menu.height());
                      that.$bsContainer.detach();
                  });
              },
  
              /**
               * @param {number} index - the index of the option that is being changed
               * @param {boolean} selected - true if the option is being selected, false if being deselected
               * @param {JQuery} $lis - the 'li' element that is being modified
               */
              setSelected: function (index, selected, $lis) {
                  if (!$lis) {
                      this.togglePlaceholder(); // check if setSelected is being called by changing the value of the select
                      $lis = this.findLis().eq(this.liObj[index]);
                  }
  
                  $lis.toggleClass('selected', selected).find('span.dropdown-item-inner').attr('aria-selected', selected);
              },
  
              /**
               * @param {number} index - the index of the option that is being disabled
               * @param {boolean} disabled - true if the option is being disabled, false if being enabled
               * @param {JQuery} $lis - the 'li' element that is being modified
               */
              setDisabled: function (index, disabled, $lis) {
                  if (!$lis) {
                      $lis = this.findLis().eq(this.liObj[index]);
                  }
  
                  if (disabled) {
                      $lis.addClass('disabled').children('span.dropdown-item-inner').attr('href', '#').attr('tabindex', -1).attr('aria-disabled', true);
                  } else {
                      $lis.removeClass('disabled').children('span.dropdown-item-inner').removeAttr('href').attr('tabindex', 0).attr('aria-disabled', false);
                  }
              },
  
              isDisabled: function () {
                  return this.$element[0].disabled;
              },
  
              checkDisabled: function () {
                  var that = this;
  
                  if (this.isDisabled()) {
                      this.$newElement.addClass('disabled');
                      this.$button.addClass('disabled').attr('tabindex', -1).attr('aria-disabled', true);
                  } else {
                      if (this.$button.hasClass('disabled')) {
                          this.$newElement.removeClass('disabled');
                          this.$button.removeClass('disabled').attr('aria-disabled', false);
                      }
  
                      if (this.$button.attr('tabindex') == -1 && !this.$element.data('tabindex')) {
                          this.$button.removeAttr('tabindex');
                      }
                  }
  
                  this.$button.click(function () {
                      return !that.isDisabled();
                  });
              },
  
              togglePlaceholder: function () {
                  var value = this.$element.val();
                  this.$button.toggleClass('bs-placeholder', value === null || value === '' || (value.constructor === Array && value.length === 0));
              },
  
              tabIndex: function () {
                  if (this.$element.data('tabindex') !== this.$element.attr('tabindex') &&
                      (this.$element.attr('tabindex') !== -98 && this.$element.attr('tabindex') !== '-98')) {
                      this.$element.data('tabindex', this.$element.attr('tabindex'));
                      this.$button.attr('tabindex', this.$element.data('tabindex'));
                  }
  
                  this.$element.attr('tabindex', -98);
              },
  
              clickListener: function () {
                  var that = this,
                      $document = $(document);
  
                  $document.data('spaceSelect', false);
  
                  this.$button.on('keyup', function (e) {
                      if (/(32)/.test(e.keyCode.toString(10)) && $document.data('spaceSelect')) {
                          e.preventDefault();
                          $document.data('spaceSelect', false);
                      }
                  });
  
                  this.$button.on('click', function () {
                      that.setSize();
                  });
  
                  this.$element.on('shown.bs.select', function () {
                      if (!that.options.liveSearch && !that.multiple) {
                          that.$menuInner.find('a.selected').focus();
                      } else if (!that.multiple) {
                          var selectedIndex = that.liObj[that.$element[0].selectedIndex];
  
                          if (typeof selectedIndex !== 'number' || that.options.size === false) return;
  
                          // scroll to selected option
                          var offset = that.$lis.eq(selectedIndex)[0].offsetTop - that.$menuInner[0].offsetTop;
                          offset = offset - that.$menuInner[0].offsetHeight / 2 + that.sizeInfo.liHeight / 2;
                          that.$menuInner[0].scrollTop = offset;
                      }
                  });
  
                  this.$menuInner.on('click', 'a', function (e) {
                      var $this = $(this).find('span.dropdown-item-inner'),
                          clickedIndex = $this.parent().data('originalIndex'),
                          prevValue = that.$element.val(),
                          prevIndex = that.$element.prop('selectedIndex'),
                          triggerChange = true;
  
                      // Don't close on multi choice menu
                      if (that.multiple && that.options.maxOptions !== 1) {
                          e.stopPropagation();
                      }
  
                      e.preventDefault();
  
                      //Don't run if we have been disabled
                      if (!that.isDisabled() && !$this.parent().hasClass('disabled')) {
                          var $options = that.$element.find('option'),
                              $option = $options.eq(clickedIndex),
                              state = $option.prop('selected'),
                              $optgroup = $option.parent('optgroup'),
                              maxOptions = that.options.maxOptions,
                              maxOptionsGrp = $optgroup.data('maxOptions') || false;
  
                          if (!that.multiple) { // Deselect all others if not multi select box
                              $options.prop('selected', false);
                              $option.prop('selected', true);
                              that.$menuInner.find('.selected').removeClass('selected').find('span.dropdown-item-inner').attr('aria-selected', false);
                              that.setSelected(clickedIndex, true);
                          } else { // Toggle the one we have chosen if we are multi select.
                              $option.prop('selected', !state);
                              that.setSelected(clickedIndex, !state);
                              $this.blur();
  
                              if (maxOptions !== false || maxOptionsGrp !== false) {
                                  var maxReached = maxOptions < $options.filter(':selected').length,
                                      maxReachedGrp = maxOptionsGrp < $optgroup.find('option:selected').length;
  
                                  if ((maxOptions && maxReached) || (maxOptionsGrp && maxReachedGrp)) {
                                      if (maxOptions && maxOptions == 1) {
                                          $options.prop('selected', false);
                                          $option.prop('selected', true);
                                          that.$menuInner.find('.selected').removeClass('selected');
                                          that.setSelected(clickedIndex, true);
                                      } else if (maxOptionsGrp && maxOptionsGrp == 1) {
                                          $optgroup.find('option:selected').prop('selected', false);
                                          $option.prop('selected', true);
                                          var optgroupID = $this.parent().data('optgroup');
                                          that.$menuInner.find('[data-optgroup="' + optgroupID + '"]').removeClass('selected');
                                          that.setSelected(clickedIndex, true);
                                      } else {
                                          var maxOptionsText = typeof that.options.maxOptionsText === 'string' ? [that.options.maxOptionsText, that.options.maxOptionsText] : that.options.maxOptionsText,
                                              maxOptionsArr = typeof maxOptionsText === 'function' ? maxOptionsText(maxOptions, maxOptionsGrp) : maxOptionsText,
                                              maxTxt = maxOptionsArr[0].replace('{n}', maxOptions),
                                              maxTxtGrp = maxOptionsArr[1].replace('{n}', maxOptionsGrp),
                                              $notify = $('<div class="notify"></div>');
                                          // If {var} is set in array, replace it
                                          /** @deprecated */
                                          if (maxOptionsArr[2]) {
                                              maxTxt = maxTxt.replace('{var}', maxOptionsArr[2][maxOptions > 1 ? 0 : 1]);
                                              maxTxtGrp = maxTxtGrp.replace('{var}', maxOptionsArr[2][maxOptionsGrp > 1 ? 0 : 1]);
                                          }
  
                                          $option.prop('selected', false);
  
                                          that.$menu.append($notify);
  
                                          if (maxOptions && maxReached) {
                                              $notify.append($('<div>' + maxTxt + '</div>'));
                                              triggerChange = false;
                                              that.$element.trigger('maxReached.bs.select');
                                          }
  
                                          if (maxOptionsGrp && maxReachedGrp) {
                                              $notify.append($('<div>' + maxTxtGrp + '</div>'));
                                              triggerChange = false;
                                              that.$element.trigger('maxReachedGrp.bs.select');
                                          }
  
                                          setTimeout(function () {
                                              that.setSelected(clickedIndex, false);
                                          }, 10);
  
                                          $notify.delay(750).fadeOut(300, function () {
                                              $(this).remove();
                                          });
                                      }
                                  }
                              }
                          }
  
                          if (!that.multiple || (that.multiple && that.options.maxOptions === 1)) {
                              that.$button.focus();
                          } else if (that.options.liveSearch) {
                              that.$searchbox.focus();
                          }
  
                          // Trigger select 'change'
                          if (triggerChange) {
                              if ((prevValue != that.$element.val() && that.multiple) || (prevIndex != that.$element.prop('selectedIndex') && !that.multiple)) {
                                  // $option.prop('selected') is current option state (selected/unselected). state is previous option state.
                                  changed_arguments = [clickedIndex, $option.prop('selected'), state];
                                  that.$element.triggerNative('change');
                              }
                          }
                      }
                  });
  
                  this.$menu.on('click', 'a.disabled span.dropdown-item-inner , .popover-title, .popover-title :not(.close)', function (e) {
                      if (e.currentTarget == this) {
                          e.preventDefault();
                          e.stopPropagation();
                          if (that.options.liveSearch && !$(e.target).hasClass('close')) {
                              that.$searchbox.focus();
                          } else {
                              that.$button.focus();
                          }
                      }
                  });
  
                  this.$menuInner.on('click', '.dropdown-divider, .dropdown-header', function (e) {
                      e.preventDefault();
                      e.stopPropagation();
                      if (that.options.liveSearch) {
                          that.$searchbox.focus();
                      } else {
                          that.$button.focus();
                      }
                  });
  
                  this.$menu.on('click', '.popover-title .close', function () {
                      that.$button.click();
                  });
  
                  this.$searchbox.on('click', function (e) {
                      e.stopPropagation();
                  });
  
                  this.$menu.on('click', '.actions-btn', function (e) {
                      if (that.options.liveSearch) {
                          that.$searchbox.focus();
                      } else {
                          that.$button.focus();
                      }
  
                      e.preventDefault();
                      e.stopPropagation();
  
                      if ($(this).hasClass('bs-select-all')) {
                          that.selectAll();
                      } else {
                          that.deselectAll();
                      }
                  });
  
                  this.$element.change(function () {
                      that.render(false);
                      that.$element.trigger('changed.bs.select', changed_arguments);
                      changed_arguments = null;
                  });
              },
  
              liveSearchListener: function () {
                  var that = this,
                      $no_results = $('<li class="no-results"></li>');
  
                  this.$button.on('click.dropdown.data-api', function () {
                      that.$menuInner.find('.active').removeClass('active');
                      if (!!that.$searchbox.val()) {
                          that.$searchbox.val('');
                          that.$lis.not('.is-hidden').removeClass('d-none');
                          if (!!$no_results.parent().length) $no_results.remove();
                      }
                      if (!that.multiple) that.$menuInner.find('.selected').addClass('active');
                      setTimeout(function () {
                          that.$searchbox.focus();
                      }, 10);
                  });
  
                  this.$searchbox.on('click.dropdown.data-api focus.dropdown.data-api touchend.dropdown.data-api', function (e) {
                      e.stopPropagation();
                  });
  
                  this.$searchbox.on('input propertychange', function () {
                      that.$lis.not('.is-hidden').removeClass('d-none');
                      that.$lis.filter('.active').removeClass('active');
                      $no_results.remove();
  
                      if (that.$searchbox.val()) {
                          var $searchBase = that.$lis.not('.is-hidden, .dropdown-divider, .dropdown-header'),
                              $hideItems;
  
                          if (that.options.liveSearchNormalize) {
                              $hideItems = $searchBase.not(':a' + that._searchStyle() + '("' + normalizeToBase(that.$searchbox.val()) + '")');
                          } else {
                              $hideItems = $searchBase.not(':' + that._searchStyle() + '("' + that.$searchbox.val() + '")');
                          }
  
                          if ($hideItems.length === $searchBase.length) {
                              $no_results.html(that.options.noneResultsText.replace('{0}', '"' + htmlEscape(that.$searchbox.val()) + '"'));
                              that.$menuInner.append($no_results);
                              that.$lis.addClass('d-none');
                          } else {
                              $hideItems.addClass('d-none');
  
                              var $lisVisible = that.$lis.not('.d-none'),
                                  $foundDiv;
  
                              // hide divider if first or last visible, or if followed by another divider
                              $lisVisible.each(function (index) {
                                  var $this = $(this);
  
                                  if ($this.hasClass('dropdown-divider')) {
                                      if ($foundDiv === undefined) {
                                          $this.addClass('d-none');
                                      } else {
                                          if ($foundDiv) $foundDiv.addClass('d-none');
                                          $foundDiv = $this;
                                      }
                                  } else if ($this.hasClass('dropdown-header') && $lisVisible.eq(index + 1).data('optgroup') !== $this.data('optgroup')) {
                                      $this.addClass('d-none');
                                  } else {
                                      $foundDiv = null;
                                  }
                              });
                              if ($foundDiv) $foundDiv.addClass('d-none');
  
                              $searchBase.not('.d-none').first().addClass('active');
                              that.$menuInner.scrollTop(0);
                          }
  
                          that.updatePosition();
                      }
                  });
              },
  
              _searchStyle: function () {
                  var styles = {
                      begins: 'ibegins',
                      startsWith: 'ibegins',
                  };
  
                  return styles[this.options.liveSearchStyle] || 'icontains';
              },
  
              val: function (value) {
                  if (typeof value !== 'undefined') {
                      this.$element.val(value);
                      this.render();
  
                      return this.$element;
                  } else {
                      return this.$element.val();
                  }
              },
  
              changeAll: function (status) {
                  if (!this.multiple) return;
                  if (typeof status === 'undefined') status = true;
  
                  this.findLis();
  
                  var $options = this.$element.find('option'),
                      $lisVisible = this.$lis.not('.dropdown-divider, .dropdown-header, .disabled, .d-none'),
                      lisVisLen = $lisVisible.length,
                      selectedOptions = [];
  
                  if (status) {
                      if ($lisVisible.filter('.selected').length === $lisVisible.length) return;
                  } else {
                      if ($lisVisible.filter('.selected').length === 0) return;
                  }
  
                  $lisVisible.toggleClass('selected', status);
  
                  for (var i = 0; i < lisVisLen; i++) {
                      var origIndex = $lisVisible[i].getAttribute('data-original-index');
                      selectedOptions[selectedOptions.length] = $options.eq(origIndex)[0];
                  }
  
                  $(selectedOptions).prop('selected', status);
  
                  this.render(false);
  
                  this.togglePlaceholder();
  
                  this.$element.triggerNative('change');
              },
  
              selectAll: function () {
                  return this.changeAll(true);
              },
  
              deselectAll: function () {
                  return this.changeAll(false);
              },
  
              toggle: function (e) {
                  e = e || window.event;
  
                  if (e) e.stopPropagation();
  
                  this.$button.trigger('click');
              },
  
              keydown: function (e) {
                  var $this = $(this),
                      $parent = $this.is('input') ? $this.parent().parent() : $this.parent(),
                      $items,
                      that = $parent.data('this'),
                      index,
                      prevIndex,
                      isActive,
                      selector = ':not(.disabled, .d-none, .dropdown-header, .dropdown-divider)',
                      keyCodeMap = {
                          32: ' ',
                          48: '0',
                          49: '1',
                          50: '2',
                          51: '3',
                          52: '4',
                          53: '5',
                          54: '6',
                          55: '7',
                          56: '8',
                          57: '9',
                          59: ';',
                          65: 'a',
                          66: 'b',
                          67: 'c',
                          68: 'd',
                          69: 'e',
                          70: 'f',
                          71: 'g',
                          72: 'h',
                          73: 'i',
                          74: 'j',
                          75: 'k',
                          76: 'l',
                          77: 'm',
                          78: 'n',
                          79: 'o',
                          80: 'p',
                          81: 'q',
                          82: 'r',
                          83: 's',
                          84: 't',
                          85: 'u',
                          86: 'v',
                          87: 'w',
                          88: 'x',
                          89: 'y',
                          90: 'z',
                          96: '0',
                          97: '1',
                          98: '2',
                          99: '3',
                          100: '4',
                          101: '5',
                          102: '6',
                          103: '7',
                          104: '8',
                          105: '9',
                      };
  
                  isActive = that.$newElement.hasClass('open') || that.$newElement.hasClass('show');
  
                  if (!isActive && (e.keyCode >= 48 && e.keyCode <= 57 || e.keyCode >= 96 && e.keyCode <= 105 || e.keyCode >= 65 && e.keyCode <= 90)) {
                      if (!that.options.container) {
                          that.setSize();
                          that.$menu.parent().addClass('open show');
                          isActive = true;
                      } else {
                          that.$button.trigger('click');
                      }
                      that.$searchbox.focus();
                      return;
                  }
  
                  if (that.options.liveSearch) {
                      if (/(^9$|27)/.test(e.keyCode.toString(10)) && isActive) {
                          e.preventDefault();
                          e.stopPropagation();
                          that.$menuInner.click();
                          that.$button.focus();
                      }
                  }
  
                  if (/(38|40)/.test(e.keyCode.toString(10))) {
                      $items = that.$lis.filter(selector);
                      if (!$items.length) return;
  
                      if (!that.options.liveSearch) {
                          index = $items.index($items.filter(':focus'));
                      } else {
                          index = $items.index($items.filter('.active'));
                      }
  
                      prevIndex = that.$menuInner.data('prevIndex');
  
                      if (e.keyCode == 38) {
                          if ((that.options.liveSearch || index == prevIndex) && index != -1) index--;
                          if (index < 0) index += $items.length;
                      } else if (e.keyCode == 40) {
                          if (that.options.liveSearch || index == prevIndex) index++;
                          index = index % $items.length;
                      }
  
                      that.$menuInner.data('prevIndex', index);
  
                      if (!that.options.liveSearch) {
                          $items.eq(index).focus();
                      } else {
                          e.preventDefault();
                          if (!$this.hasClass('dropdown-toggle')) {
                              $items.removeClass('active').eq(index).addClass('active').children('span.dropdown-item-inner').focus();
                              $this.focus();
                          }
                      }
  
                  } else if (!$this.is('input')) {
                      var keyIndex = [],
                          count,
                          prevKey;
  
                      $items = that.$lis.filter(selector);
                      $items.each(function (i) {
                          if ($.trim($(this).children('span.dropdown-item-inner').text().toLowerCase()).substring(0, 1) == keyCodeMap[e.keyCode]) {
                              keyIndex.push(i);
                          }
                      });
  
                      count = $(document).data('keycount');
                      count++;
                      $(document).data('keycount', count);
  
                      prevKey = $.trim($(':focus').text().toLowerCase()).substring(0, 1);
  
                      if (prevKey != keyCodeMap[e.keyCode]) {
                          count = 1;
                          $(document).data('keycount', count);
                      } else if (count >= keyIndex.length) {
                          $(document).data('keycount', 0);
                          if (count > keyIndex.length) count = 1;
                      }
  
                      $items.eq(keyIndex[count - 1]).children('span.dropdown-item-inner').focus();
                  }
  
                  // Select focused option if "Enter", "Spacebar" or "Tab" (when selectOnTab is true) are pressed inside the menu.
                  if ((/(13|32)/.test(e.keyCode.toString(10)) || (/(^9$)/.test(e.keyCode.toString(10)) && that.options.selectOnTab)) && isActive) {
                      if (!/(32)/.test(e.keyCode.toString(10))) e.preventDefault();
                      if (!that.options.liveSearch) {
                          var elem = $(':focus');
                          elem.click();
                          // Bring back focus for multiselects
                          elem.focus();
                          // Prevent screen from scrolling if the user hit the spacebar
                          e.preventDefault();
                          // Fixes spacebar selection of dropdown items in FF & IE
                          $(document).data('spaceSelect', true);
                      } else if (!/(32)/.test(e.keyCode.toString(10))) {
                          that.$menuInner.find('a.active').click();
                          $this.focus();
                      }
                      $(document).data('keycount', 0);
                  }
  
                  if ((/(^9$|27)/.test(e.keyCode.toString(10)) && isActive && (that.multiple || that.options.liveSearch)) || (/(27)/.test(e.keyCode.toString(10)) && !isActive)) {
                      that.$menu.parent().removeClass('open');
                      if (that.options.container) that.$newElement.removeClass('open');
                      that.$button.focus();
                  }
              },
  
              mobile: function () {
                  this.$element.addClass('mobile-device');
              },
  
              refresh: function () {
                  this.$lis = null;
                  this.liObj = {};
                  this.reloadLi();
                  this.render();
                  this.checkDisabled();
                  this.liHeight(true);
                  this.setStyle();
                  this.setWidth();
                  if (this.$lis) this.$searchbox.trigger('propertychange');
  
                  this.$element.trigger('refreshed.bs.select');
              },
  
              hide: function () {
                  this.$newElement.hide();
              },
  
              show: function () {
                  this.$newElement.show();
              },
  
              remove: function () {
                  this.$newElement.remove();
                  this.$element.remove();
              },
  
              destroy: function () {
                  this.$newElement.before(this.$element).remove();
  
                  if (this.$bsContainer) {
                      this.$bsContainer.remove();
                  } else {
                      this.$menu.remove();
                  }
  
                  this.$element.off('.bs.select').removeData('selectpicker').removeClass('bs-select-hidden selectpicker');
              },
          };
  
          // SELECTPICKER PLUGIN DEFINITION
          // ==============================
          function Plugin(option) {
              // get the args of the outer function..
              var args = arguments;
              // The arguments of the function are explicitly re-defined from the argument list, because the shift causes them
              // to get lost/corrupted in android 2.3 and IE9 #715 #775
              var _option = option;
  
              [].shift.apply(args);
  
              var value;
              var chain = this.each(function () {
                  var $this = $(this);
                  if ($this.is('select')) {
                      var data = $this.data('selectpicker'),
                          options = typeof _option == 'object' && _option;
  
                      if (!data) {
                          var config = $.extend({}, Selectpicker.DEFAULTS, $.fn.selectpicker.defaults || {}, $this.data(), options);
                          config.template = $.extend({}, Selectpicker.DEFAULTS.template, ($.fn.selectpicker.defaults ? $.fn.selectpicker.defaults.template : {}), $this.data().template, options.template);
                          $this.data('selectpicker', (data = new Selectpicker(this, config)));
                      } else if (options) {
                          for (var i in options) {
                              if (options.hasOwnProperty(i)) {
                                  data.options[i] = options[i];
                              }
                          }
                      }
  
                      if (typeof _option == 'string') {
                          if (data[_option] instanceof Function) {
                              value = data[_option].apply(data, args);
                          } else {
                              value = data.options[_option];
                          }
                      }
                  }
              });
  
              if (typeof value !== 'undefined') {
                  //noinspection JSUnusedAssignment
                  return value;
              } else {
                  return chain;
              }
          }
  
          var old = $.fn.selectpicker;
          $.fn.selectpicker = Plugin;
          $.fn.selectpicker.Constructor = Selectpicker;
  
          // SELECTPICKER NO CONFLICT
          // ========================
          $.fn.selectpicker.noConflict = function () {
              $.fn.selectpicker = old;
              return this;
          };
  
          $(document).data('keycount', 0).on('keydown.bs.select', '.bootstrap-select [data-toggle=dropdown], .bootstrap-select [role="listbox"], .bs-searchbox input', Selectpicker.prototype.keydown).on('focusin.modal', '.bootstrap-select [data-toggle=dropdown], .bootstrap-select [role="listbox"], .bs-searchbox input', function (e) {
              e.stopPropagation();
          });
  
          // SELECTPICKER DATA-API
          // =====================
          $(window).on('load.bs.select.data-api', function () {
              $('.selectpicker').each(function () {
                  var $selectpicker = $(this);
                  Plugin.call($selectpicker, $selectpicker.data());
              });
          });
      })(jQuery);
  
  }));
  