https://www.woundcare-today.com/script/scriptbreaker-multiple-accordion-1.js

1/*
2 * jQuery UI Multilevel Accordion v.1
3 * 
4 * Copyright (c) 2011 Pieter Pareit
5 *
6 * http://www.scriptbreaker.com
7 *
8 */
9
10//plugin definition
11(function($){
12    $.fn.extend({
13
14        //pass the options variable to the function
15        accordion: function(options) {
16        
17            var defaults = {
18                accordion: 'true',
19                speed: 300,
20                closedSign: '[+]',
21                openedSign: '[-]'
22            };
23
24            // Extend our default options with those provided.
25            var opts = $.extend(defaults, options);
26            //Assign current element to variable, in this case is UL element
27            var $this = $(this);
28 		
29            //add a mark [+] to a multilevel menu
30            $this.find("li").each(function() {
31                if($(this).find("ul").size() != 0){
32                    //add the multilevel sign next to the link
33                    $(this).find("a:first").append("<span>"+ opts.closedSign +"</span>");
34 				
35                    //avoid jumping to the top of the page when the href is an #
36                    if($(this).find("a:first").attr('href') == base_url+ "#"){

37                        $(this).find("a:first").click(function(e){
38                            return false;
39                        });
40                    }
41                }
42            });
43
44            //open active level
45            $this.find("li.active").each(function() {
46                $(this).parents("ul").slideDown(opts.speed);
47                $(this).parents("ul").parent("li").find("span:first").html(opts.openedSign);
48                $(this).find("span:first").html(opts.openedSign);
49            });
50
51            $this.find("li a").click(function(e) {
52                e.preventDefault();
53                var href= $(this).attr('href');
54                if($(this).parent().find("ul").size() != 0){
55                    if(opts.accordion){
56                        //Do nothing when the list is open
57                        if(!$(this).parent().find("ul").is(':visible')){
58                            parents = $(this).parent().parents("ul");
59                            visible = $this.find("ul:visible");
60                            visible.each(function(visibleIndex){
61                                var close = true;
62                                parents.each(function(parentIndex){
63                                    if(parents[parentIndex] == visible[visibleIndex]){
64                                        close = false;
65                                        return false;
66                                    }
67                                });
68                                if(close){
69                                    if($(this).parent().find("ul") != visible[visibleIndex]){
70                                        $(visible[visibleIndex]).slideUp(opts.speed, function(){
71                                            $(this).parent("li").find("span:first").html(opts.closedSign);
72                                        });
73  									
74                                    }
75                                }
76                            });
77                        }
78                    }
79                    if($(this).parent().find("ul:first").is(":visible")){
80                        /*
81                        $(this).parent().find("ul:first").slideUp(opts.speed, function(){
82                            $(this).parent("li").find("span:first").delay(opts.speed).html(opts.closedSign);
83                            $(location).attr('href',href);     
84                        });*/
85                        if( href == base_url+ "#"){

86                            return false;
87                        }
88                        $(location).attr('href',href);     
89                       
90  					
91  					
92                    }else{
93                        $(this).parent().find("ul:first").slideDown(opts.speed, function(){
94                            $(this).parent("li").find("span:first").delay(opts.speed).html(opts.openedSign);
95                            if( href == base_url+ "#"){
96                                return false;
97                            }
98                            $(location).attr('href',href);                  
99                        });
100                    }
101                }
102                else{
103                    if( href == base_url+ "#"){
104                        return false;
105                    }
106                    $(location).attr('href',href);  
107                }
108                    
109            });
110        }
111    });
112})(jQuery);