def expires=(t)
      @expires = t && (t.is_a?(Time) ? t.httpdate : t.to_s)
    end
def expires=(t)
      @expires = t && (t.is_a?(Time) ? t.httpdate : t.to_s)
    end
attr_accessor :comment_url, :discard, :port

 Creates a new cookie with the given +name+ and +value+

 Sets the cookie expiration to the time +t+.  The expiration time may be
 a false value to disable expiration or a Time or HTTP format time string
 to set the expiration date.