api.js

new List.Checkbox(element, options);

List.Checkbox.js

/*
---

name: List.CheckBox

license: MIT-style license.

copyright: Copyright (c) 2011 [Ryan Florence](http://ryanflorence.com/).

author: Ryan Florence

requires:
  - /List

provides: [List.Checkbox]

...
*/

List.Checkbox = new Class({

	Extends: List,

	selectOne: function (event, target){
		var input = document.id(target.get('data-only'));
		if (!input || input.disabled) return;
		// selecting every click so it can have dynamic contents
		this.inputs.set('checked', false);
		input.set('checked', true);
		this.fireEvent('selectOne', [input]);
	},

	selectAll: function (event, target){
		this.inputs.set('checked', true);
		this.fireEvent('selectAll');
	},

	deselectAll: function (){
		this.inputs.set('checked', false);
		this.fireEvent('deselectAll');
	}

});

List.js

/*
---

name: List

license: MIT-style license.

copyright: Copyright (c) 2011 [Ryan Florence](http://ryanflorence.com/).

author: Ryan Florence

requires:
  - Core/Element.Event
  - Core/Class.Extras
  - More/Element.Delegation

provides: [List]

...
*/

(function (){

	var empty = function (){};

	var List = this.List = new Class({

		Implements: [Options, Events],

		options: {
			input: 'input[type=checkbox]',
			only: '[data-only]',
			'select-all': '[data-select-all]',
			'deselect-all': '[data-deselect-all]'
		},

		events: {},

		initialize: function (element, options){
			this.setOptions(options);
			this.element = document.id(element);
			this.events['click:relay('+this.options.only+')'] = this.selectOne.bind(this);
			this.events['click:relay('+this.options['select-all']+')'] = this.selectAll.bind(this);
			this.events['click:relay('+this.options['deselect-all']+')'] = this.deselectAll.bind(this);
			this.inputs = this.element.getElements(this.options.input);
			this.attach();
		},

		attach: function (detach){
			this.element[(detach ? 'remove' : 'add') + 'Events'](this.events);
		},

		selectOne: empty,
		selectAll: empty,
		deselectAll: empty

	});

}).call(this);