Site Cookie?

Using Apache (set up in, say, .htaccess), is it possible to force
redirection to a page if a certain cookie value is not set?  I'm working on
a project that requires a login and validation, and once that's done a
cookie will be set.  If the cookie is not set, I want to send them to the
login screen. I'd hate to have each page be forced to check for a cookie
(with some scripting), and I'd hate to serve up the whole site with a cgi
that can check for a cookie ... I'm really hoping that Apache can do this
for me ... any ideas?

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Steve Mount, Software Engineer             steve(at)tatooine.com
Home Site                             http://www.tatooine.com
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