!function ($){ 
"use strict"; 
var toggle = '[data-toggle=dropdown]', Dropdown = function (element){ 
var $el = $(element).on('click.dropdown.data-api', this.toggle); 
$('html').on('click.dropdown.data-api', function (){ 
$el.parent().removeClass('open'); 
} 
); 
} 
; 
Dropdown.prototype = { 
constructor: Dropdown,
toggle: function (e){ 
var $this = $(this), $parent, isActive; 
if ($this.is('.disabled, :disabled')) return ; 
$parent = getParent($this); 
isActive = $parent.hasClass('open'); 
clearMenus(); 
if (!isActive) { 
$parent.toggleClass('open'); 
} 
$this.focus(); 
return false ; 
} 
,
keydown: function (e){ 
var $this, $items, $active, $parent, isActive, index; 
if (!/(38|40|27)/.test(e.keyCode)) return ; 
$this = $(this); 
e.preventDefault(); 
e.stopPropagation(); 
if ($this.is('.disabled, :disabled')) return ; 
$parent = getParent($this); 
isActive = $parent.hasClass('open'); 
if (!isActive || (isActive && e.keyCode == 27)) { 
if (e.which == 27) $parent.find(toggle).focus(); 
return $this.click(); 
} 
$items = $('[role=menu] li:not(.divider):visible a', $parent); 
if (!_AN_Read_length('length', $items)) return ; 
index = $items.index($items.filter(':focus')); 
if (e.keyCode == 38 && index > 0) index-- ; 
if (e.keyCode == 40 && index < _AN_Read_length('length', $items) - 1) index++ ; 
if (!~index) index = 0; 
$items.eq(index).focus(); 
} 
}
; 
function clearMenus(){ 
$(toggle).each(function (){ 
getParent($(this)).removeClass('open'); 
} 
); 
} 
function getParent($this){ 
var selector = $this.attr('data-target'), $parent; 
if (!selector) { 
selector = $this.attr('href'); 
selector = selector && /#/.test(selector) && _AN_Call_replace('replace', selector, /.*(?=#[^\s]*$)/, ''); 
} 
$parent = selector && $(selector); 
if (!$parent || !_AN_Read_length('length', $parent)) $parent = $this.parent(); 
return $parent; 
} 
var old = $.fn.dropdown; 
$.fn.dropdown = function (option){ 
return this.each(function (){ 
var $this = $(this), data = $this.data('dropdown'); 
if (!data) $this.data('dropdown', (data = new Dropdown(this))); 
if (typeof option == 'string') data[option].call($this); 
} 
); 
} 
; 
$.fn.dropdown.Constructor = Dropdown; 
$.fn.dropdown.noConflict = function (){ 
$.fn.dropdown = old; 
return this; 
} 
; 
$(document).on('click.dropdown.data-api', clearMenus).on('click.dropdown.data-api', '.dropdown form', function (e){ 
e.stopPropagation(); 
} 
).on('click.dropdown-menu', function (e){ 
e.stopPropagation(); 
} 
).on('click.dropdown.data-api', toggle, Dropdown.prototype.toggle).on('keydown.dropdown.data-api', toggle + ', [role=menu]', Dropdown.prototype.keydown); 
} 
(window.jQuery);