Magento form: reset validation messages validations http://magento.stackexchange.com/questions/6738/how-to-reset-magento-form-validation
// Initialized validation form
var customForm = new VarienForm('ingresarEmail');
jQuery(document).ready(function($) {
$('body').on('click', '.validation-failed', function(event) {
customForm.validator.reset();
});
});