var author = new LiveValidation('author');
author.add(Validate.Presence, { failureMessage: "Supply a Screen name!" } );
author.add( Validate.Length, { minimum: 4, maximum: 30 } );

var email = new LiveValidation('email');
email.add(Validate.Presence, { failureMessage: "Required" } );
email.add(Validate.Email);

var comment = new LiveValidation('comment');
comment.add(Validate.Presence, { failureMessage: "Required" } );