https://www.acelmex.org.mx/wp-content/themes/norma/js/jquery.mobilemenu.min.js?ver=1.0.0

1(function ($) {
2    $.fn.mobileMenu = function (options) {
3        function isMobile() {
4            return ($('body').width() < 600);
5        }
6        var defaults = {
7            defaultText: 'Navigate to...',
8            className: 'select-menu',
9            subMenuClass: 'sub-menu',
10            subMenuDash: '--',
11			mainMenuSelector: '#mainmenu'
12        	}, 
13			settings = $.extend(defaults, options),
14            el = $(this),
15			output = '',
16			first = settings.defaultText;
17        this.each(function () {
18			output = '';
19            el.find('ul').addClass(settings.subMenuClass);
20            el.find('a,.separator').each(function () {
21            	if($(this).text() == "") {
22            		return;
23            	}
24                var $this = $(this),
25                    optText = $this.text(),
26                    optSub = $this.parents('.' + settings.subMenuClass),
27                    len = optSub.length,
28                    dash;
29                if ($this.parents('ul').hasClass(settings.subMenuClass)) {
30                    dash = Array(len + 1).join(settings.subMenuDash);
31                    optText = dash + optText;
32                }
33                if ($this.is('span'))
34					output += '<optgroup label="' + optText + '">';
35                else
36					output += '<option value="' + this.href + '"' + (this.href == window.location.href ? ' selected="selected"' : '') + '>&nbsp' + optText + '</option>'
37				if (this.href == window.location.href)
38					first = optText;
39            });
40			$('<div class="' + settings.className + '">'
41				+ '<span class="icon"></span>'

42				+ '<span class="holder">' + first + '</span>'
43				+ '<select size="1" class="' + settings.className + '-list">' + output + '</select></div>').insertAfter(el);
44            $('.' + settings.className + '-list').change(function () {
45                var locations = $(this).val();
46                if (locations !== '#') {
47                    window.location.href = $(this).val();
48                }
49            });
50        });
51
52        function runPlugin() {
53            if (isMobile()) {
54                $('.'+settings.className).show();
55                $(settings.mainMenuSelector).hide();
56            } else {
57                $('.'+settings.className).hide();
58                $(settings.mainMenuSelector).show();
59            }
60        }
61        runPlugin();
62        $(window).resize(function () {
63            runPlugin();
64        });
65        return this;
66    };
67})(jQuery);