https://www.myparkingsign.com/blog/wp-content/themes/wp-clear321/js/jquery.mobilemenu.js?ver=7.1.2

1/**
2 * jQuery Mobile Menu 
3 * Turn unordered list menu into dropdown select menu
4 * version 1.0(31-OCT-2011)
5 * 
6 * Built on top of the jQuery library
7 *   http://jquery.com
8 * 
9 * Documentation
10 * 	 http://github.com/mambows/mobilemenu
11 */
12(function($){
13$.fn.mobileMenu = function(options) {
14	
15	var defaults = {
16			defaultText: '',
17			className: 'select-menu',
18			subMenuClass: 'sub-menu',
19			subMenuDash: '– '
20		},
21		settings = $.extend( defaults, options ),
22		el = $(this);
23	
24	this.each(function(){
25		// ad class to submenu list
26		el.find('ul').addClass(settings.subMenuClass);
27
28		// Create base menu
29		$('<select />',{
30			'class' : settings.className
31		}).insertAfter( el );
32
33		// Create default option
34		$('<option />', {
35			"value"		: '#',
36			"text"		: settings.defaultText
37		}).appendTo( '.' + settings.className );
38
39		// Create select option from menu
40		el.find('a').each(function(){
41			var $this 	= $(this),
42					optText	= '&nbsp;' + $this.text(),
43					optSub	= $this.parents( '.' + settings.subMenuClass ),
44					len			= optSub.length,
45					dash;
46			
47			// if menu has sub menu
48			if( $this.parents('ul').hasClass( settings.subMenuClass ) ) {
49				dash = Array( len+1 ).join( settings.subMenuDash );
50				optText = dash + optText;
51			}
52
53			// Now build menu and append it
54			$('<option />', {
55				"value"	: this.href,
56				"html"	: optText,
57				"selected" : (this.href == window.location.href)
58			}).appendTo( '.' + settings.className );
59
60		}); // End el.find('a').each
61
62		// Change event on select element
63		$('.' + settings.className).change(function(){
64			var locations = $(this).val();
65			if( locations !== '#' ) {
66				window.location.href = $(this).val();
67			};
68		});
69
70	}); // End this.each
71
72	return this;
73
74};
75})(jQuery);