only caching images

We are running squid in accelerator mode and would like to proxy all
documents, but only cache image files. Instead of adding lots of
no_cache lines, I've changed the refresh_pattern lines:

refresh_pattern -i *.gif 1440 20% 10080
refresh_pattern -i *.jpg 1440 20% 10080
refresh_pattern . 0 0% 0

Is there a better way of doing this?

--
Jayme Cox
Director of Network Operations
Phone: 415-437-4709 x106
Fax: 415-437-4710
Zing Network, Inc.
550 Fifteenth Street
San Francisco, CA 94103