always_direct and url_rewrite

[Andreas Moroder <andreas.moroder@xxxxxxxxxxxx>]

Hello

we, a public hospital, have following configuration in our squid 2.7.STABLE4

acl localsites dstdomain .se-nord.provinz.bz.it www.sb-brixen.it

always_direct allow localsites
http_access allow localsites

url_rewrite_program /opt/ourrewriter
url_rewrite_children 30

All the requests, event those directed to a "localsites" site , that 
have alway_direct access, are rewriten by our rewriter.

Is there a way to configure squid the way it does not pass this sites to 
the rewriter ?

Thanks
Andreas