(function (jQuery) {
    /**
     * Using radio or checkboxes, disabled/enables argumented field
     * Use: jQuery("#myradio").toggleField("#mytextfield");
     *
     * @param field
     */
    jQuery.fn.toggleField = function (field) {
        var that = this,
            field = jQuery(field),
            setFieldAttr = function () {
            field.prop("disabled", function () {
                if (that.prop("checked") === false) {
                    that.parent().addClass("disabled");
                    return true;
                } else {
                    that.parent().removeClass("disabled");
                    return false;
                }
            }());
            return arguments.callee;
        }();
        jQuery(document[this.attr("name")]).click(setFieldAttr).change(setFieldAttr);
        return this;
    };
})(jQuery);