да, именно!

Constantine 16.07.2003 23:50

$response:Last-Modified[^date::now(-7)]
test

GET /test.html HTTP/1.1
Host: localmojo

HTTP/1.1 200 OK
Date: Wed, 16 Jul 2003 19:47:36 GMT
Server: Apache/1.3.26 (Win32)
Last-Modified: Thu, 01 Jan 1970 00:00:00 GMT
content-length: 4
Content-Type: text/html; charset=windows-1251

test