Lighttpd

According to this forum post http://redmine.lighttpd.net/boards/3/topics/2298 I'd like to ask you if it's possible
to build in more error handlers. I've been using Apache for the last 10 years and I guess self-defined error handlers
(to be exactly: self-defined DYNAMICAL error pages php, perf, u name it...) are one of the most important things a good
webserver must be able to serve. I'm already using the 404 handler but I really think this is not enough.

I've built many projects in my lifetime as a web-developer where the customer wanted custom 401 and 403 error pages
which I'm not able to do anymore since I migrated from Apache to Lighty.

Also HTTP 500 dynamical error handlers would be useful. I know at first it doesn't make sense when you think
about calling a php script when the previous script crashed, but as long as the two scripts are totally independent
and won't produce and endless loop it's a very good posibility to show the customer in a nice way that there wen't
something wrong.

Best regards