resolv.conf question

[r.hildebrandt at tu-bs.de]

I know that the servers given in /etc/resolv.conf are queried in the order
they're listed there. If the first server fails, we get a timeout and the
second server is tried and so on.
 
My question: Is there any way to automatically reorder the server in such a
way, that query time is optimal?
 
Reason: We had several customers complaining about bad performance, and one
of the main resons was that the nameservers in their /etc/resolv.conf's were
not answering their machine's queries.
 
So if a nameserver repeatedly fails to answer requests, it should be pushed
back (downwards) in the list of servers.
 
Any thoughts?