/*-------------------------------------------------------------------- 
* 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'); });
        }
    });
};