/*-------------------------------------------------------------------- 
* jQuery plugin: customInput()
* by Maggie Wachs and Scott Jehl, http://www.filamentgroup.com
* Copyright (c) 2009 Filament Group
* Dual licensed under the MIT (filamentgroup.com/examples/mit-license.txt) and GPL (filamentgroup.com/examples/gpl-license.txt) licenses.
* Article: http://www.filamentgroup.com/lab/accessible_custom_designed_checkbox_radio_button_inputs_styled_css_jquery/  
* Usage example below (see comment "Run the script...").
--------------------------------------------------------------------*/


jQuery.fn.customInput = function () {
	$(this).each(function (i) {
		if ($(this).is('[type=checkbox],[type=radio]')) {
			var input = $(this);

			// get the associated label using the input's id
			var label = $('label[for=' + input.attr('id') + ']');

			//get type, for classname suffix 
			var inputType = (input.is('[type=checkbox]')) ? 'checkbox' : 'radio';

			// wrap the input + label in a div 
			$('<div class="custom-' + inputType + '"></div>').insertBefore(input).append(input, label);

			// find all inputs in this set using the shared name attribute
			var allInputs = $('input[name=' + input.attr('name') + ']');

			// necessary for browsers that don't support the :hover pseudo class on labels
			label.hover(
				function () {
					$(this).addClass('hover');
					if (inputType == 'checkbox' && input.is(':checked')) {
						$(this).addClass('checkedHover');
					}
				},
				function () { $(this).removeClass('hover checkedHover'); }
			);

			//bind custom event, trigger it, bind click,focus,blur events					
			input.bind('updateState', function () {
				if (input.is(':checked')) {
					if (input.is(':radio')) {
						allInputs.each(function () {
							$('label[for=' + $(this).attr('id') + ']').removeClass('checked');
						});
					};
					label.addClass('checked');
				}
				else { label.removeClass('checked checkedHover checkedFocus'); }

			})
			.trigger('updateState')
			.click(function () {
				$(this).trigger('updateState');
			})
			.focus(function () {
				label.addClass('focus');
				if (inputType == 'checkbox' && input.is(':checked')) {
					$(this).addClass('checkedFocus');
				}
			})
			.blur(function () { label.removeClass('focus checkedFocus'); });
		}
	});
};