How to Extend Validity (http://validity.thatscaptaintoyou.com/)

how-to-extend-validity.js

//
// How to Extend Validity
//

// Setup validity and get the private validation function.
$.validity.setup({debugPrivates: true})
var validate = $.validity.__private.validate

// Add our message
$.validity.messages.myCustomValidationMessage = 'You fail.'

// Write a custom validation method
$.fn.myCustomValidation = function (msg) {
	return validate(
		this,
		function(obj) {
			// do some custom stuff here.
		},
		msg || $.validity.messages.myCustomValidationMessage
	);
}

// Use this elsewhere in your code like any of the other validation methods.
$.validity.start()
$('.some-form-fields').myCustomValidation()
var results = $.validity.end()