print header;

             -or-

        print header('image/gif');

             -or-

        print header('text/html','204 No response');

             -or-

        print header(-type=>'image/gif',
                             -nph=>1,
                             -status=>'402 Payment required',
                             -expires=>'+3d',
                             -cookie=>$cookie,
                             -charset=>'utf-7',
                             -attachment=>'foo.gif',
                             -Cost=>'$2.00');