validates_confirmation_of :pass_crypt#, :message => ' must match the confirmation password'
validates_uniqueness_of :display_name, :allow_nil => true
validates_uniqueness_of :email
+ validates_uniqueness_of :openid_url, :allow_nil => true
validates_length_of :pass_crypt, :within => 8..255
validates_length_of :display_name, :within => 3..255, :allow_nil => true
validates_email_format_of :email, :if => Proc.new { |u| u.email_changed? }