jquery validation plugin with knockout js custom binding handler

jquery-validation-ko-bindinghander.js

ko.bindingHandlers.jqValidation = {

            update: function (element, valueAccessor, allBindingsAccessor, viewModel) {

                var accessor = valueAccessor();
                if (accessor.enforce) {
                    $(element).find(':submit').removeClass('cancel');
                    $(element).validate({
                        submitHandler: function () {
                            if ($.isFunction(accessor.submitHandler))
                                accessor.submitHandler();
                        }
                    });
                } else
                    $(element).find(':submit').addClass('cancel');
            }
        };