https://www.uv4pal.com/dfiles/9861/tmp/js/menu_min.js

1(function($) {
2    $.fn.menu = function(b) {
3        var c,
4        item,
5        httpAdress;
6        b = jQuery.extend({
7            Speed: 220,
8            autostart: 1,
9            autohide: 1
10        },
11        b);
12        c = $(this);
13        item = c.children("ul").parent("li").children("a");
14        httpAdress = window.location;
15        item.addClass("inactive");
16        function _item() {
17            var a = $(this);
18            if (b.autohide) {
19                a.parent().parent().find(".active").parent("li").children("ul").slideUp(b.Speed / 1.2, 
20                function() {
21                    $(this).parent("li").children("a").removeAttr("class");
22                    $(this).parent("li").children("a").attr("class", "inactive")
23                })
24            }
25            if (a.attr("class") == "inactive") {
26                a.parent("li").children("ul").slideDown(b.Speed, 
27                function() {
28                    a.removeAttr("class");
29                    a.addClass("active")
30                })
31            }
32            if (a.attr("class") == "active") {
33                a.removeAttr("class");
34                a.addClass("inactive");
35                a.parent("li").children("ul").slideUp(b.Speed)
36            }
37        }
38        item.unbind('click').click(_item);
39        if (b.autostart) {
40            c.children("a").each(function() {
41                if (this.href == httpAdress) {
42                    $(this).parent("li").parent("ul").slideDown(b.Speed, 
43                    function() {
44                        $(this).parent("li").children(".inactive").removeAttr("class");
45                        $(this).parent("li").children("a").addClass("active")
46                    })
47                }
48            })
49        }
50    }
51})(jQuery);