# File lib/authlogic/acts_as_authentic/password.rb, line 210
        def self.included(klass)
          return if klass.crypted_password_field.nil?
          
          klass.class_eval do
            include InstanceMethods
            
            if validate_password_field
              validates_length_of :password, validates_length_of_password_field_options
              
              if require_password_confirmation
                validates_confirmation_of :password, validates_confirmation_of_password_field_options
                validates_length_of :password_confirmation, validates_length_of_password_confirmation_field_options
              end
            end
            
            after_save :reset_password_changed
          end
        end