https://farcliffs.com/wp-content/plugins/enhanced-links/js/enhanced-links.js

1function EnhancedLinksPlugin() {
2	this._settings = {
3		expandText		: '»',
4		contractText	: '«',
5		leafText		: '-',
6		expandImage		: '',	
7		contractImage	: '',
8		leafImage		: '',
9		buttonColor		: '#CC0000',
10		buttonWidth		: '10px',
11		buttonMargin	: '0 5px 0 0',
12		isButtonAfter	: false
13	};
14}
15
16jQuery.extend(EnhancedLinksPlugin.prototype, {
17	setSettings: function(newSettings) {
18		jQuery.extend(this._settings, newSettings || {});
19	},
20	
21	getSettings: function() {
22		return this._settings;
23	},
24
25	getButtonText: function(text, image) {
26		var output = '';
27		if (image=='') {
28			output += text;
29		} else {
30			output += '<img src="' + image + '" alt="' + text + '" title="' + text + '" />';
31		}
32		
33		return output;
34	}
35});
36
37jQuery(document).ready(function() {
38	EnhancedLinksPlugin = new EnhancedLinksPlugin();
39});
40
41jQuery.fn.enhancedLinks = function(args) { 
42	var defaults = EnhancedLinksPlugin.getSettings(); 
43	jQuery.extend(defaults, args);
44	
45	return jQuery('li.linkcat', this).each(function() {	
46		var hasChildren = (jQuery(this).children('ul').length > 0);
47		var button = '';
48		
49		// Make button text
50		if (hasChildren) {
51			if (defaults.contractChildren==1) {
52				button += '<span class="button is_expanded" style="cursor: pointer;">';
53				button += EnhancedLinksPlugin.getButtonText(defaults.expandText, defaults.expandImage);
54				button += '</span>';
55			} else {
56				button += '<span class="button is_contracted" style="cursor: pointer;">';
57				button += EnhancedLinksPlugin.getButtonText(defaults.contractText, defaults.contractImage);
58				button += '</span>';
59			}
60		} else {
61			button += '<span class="button" style="">';
62			button += EnhancedLinksPlugin.getButtonText(defaults.leafText, defaults.leafImage);
63			button += '</span>';
64		}
65		
66		// Add the button before or after the category
67		if (defaults.isButtonAfter) {		
68			if (hasChildren) {
69				jQuery(this).children('ul').before(button);
70			} else {
71				jQuery(this).append(button);
72			}			
73		} else {
74			jQuery(this).prepend(button);
75		}
76		
77		// Behaviour of the category
78		jQuery(this)
79			.css({listStyleType: 'none'})
80			.children('span.button, span.link-cat-title')
81				.css({ 	width: 	defaults.buttonWidth, 
82						margin: defaults.buttonMargin, 
83						color: 	defaults.buttonColor 
84					})
85				.click(function() {
86						jQuery(this).siblings('ul').slideToggle();
87							
88						if (jQuery(this).hasClass('link-cat-title'))
89							var buttons = jQuery(this).siblings('span.button');
90						else 
91							var buttons = jQuery(this);
92							
93						buttons
94							.filter('span.button')
95								.each(function() {
96									if (jQuery(this).hasClass('is_expanded')) {
97										jQuery(this)
98											.html(EnhancedLinksPlugin.getButtonText(defaults.contractText, defaults.contractImage))
99											.removeClass('is_expanded')
100											.addClass('is_contracted');
101									} else {
102										jQuery(this)
103											.html(EnhancedLinksPlugin.getButtonText(defaults.expandText, defaults.expandImage))
104											.removeClass('is_contracted')
105											.addClass('is_expanded');
106									}
107									return this;
108								});

109					});
110					
111		jQuery(this).children('ul')
112			.css({ 	paddingLeft: defaults.buttonWidth });
113
114		// Contract child categories if asked
115		if (defaults.contractChildren==1) {
116			jQuery(this).children('ul').hide();
117		}
118
119		return this;
120	});
121};