/*
*	jQueryUI.Accordion.Multiple, v1.0.1
*	(c) 2014–2017 Artyom "Sleepwalker" Fedosov <mail@asleepwalker.ru>
*	https://github.com/asleepwalker/jquery-ui.tabs.neighbors.js
*/

(function (factory) {
	if (typeof define === 'function' && define.amd) {
		define(['jquery'], factory);
	} else if (typeof module === 'object' && module.exports) {
		module.exports = function (root, jQuery) {
			if (jQuery === undefined) {
				if (typeof window !== 'undefined') {
					jQuery = require('jquery');
				} else {
					jQuery = require('jquery')(root);
				}
			}
			factory(jQuery);
			return jQuery;
		};
	} else {
		factory(jQuery);
	}
}(function ($) {

	var originalToggle = $.ui.accordion.prototype._toggle;

	$.extend($.ui.accordion.prototype, {
		multiple: false,
		_toggle: function (data) {
			if (this.options.multiple && data.newPanel.length) {
				data.oldPanel = data.oldHeader = this.prevShow = $('');

				if (this.options.collapsible && data.newPanel.is(':visible')) {
					data.oldPanel = data.newPanel;
					data.newPanel = $('');
				}
			}
			originalToggle.apply(this, arguments);
		}
	});

}));