Trying multiple essids and crypto keys

[Scott Bronson]

Hello.  I've looked all over the net for the answer to this, but it
still eludes me.  If it's a FAQ, please point me in the right direction?

I have four wireless networks that I sometimes connect my laptop to. 
Two are unprotected, two require encryption strings.  All four have
different essids.

Is there any way I can get my machine to try all keys and essids and use
the first one that works?  Having to configure /etc/pcmcia/wireless.conf
every time is a drag.

Thanks!

    - Scott