prioritizing dhcp servers

I have a DHCP question.

I have two DHCP servers; one on a wired/wireless network and one on a
different wireless network. The second wireless network is in a vehicle.

What I want is to have my laptop get its DHCP assignment from the first
network if it is available, and only if it fails to get its assignment
from the second wireless network.

Is this possible? I'be been trying to figure this out, and I don't know
where to begin... Pointers to any docs (or even RTFM with a reference)
would be welcome...

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Yan Seiner, PE (_)\(_) ,>/'_ o__
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