Question on Network configuration

[Jonathan Jesse]

As posted earlier I have a laptop that dual boots Kubuntu (Breezy) and Windows 
XP.  I travel between three branches which have a different addressing scheme 
(192.168.1.x for one branch, 192.168.2.x for another, etc) and also @ home.  
My home network is setup like my primary network so I have no problems 
traveling from home to work, both  on 192.168.1.x.  However when I go to the 
branch I would prefer to not issue an ifdown -> ifup sequence before I can 
browse the network.  

In Windows it grabs a DHCP address automatically and I get a connection at all 
locations without having to change everything.  Is there a way to do this in 
Kubuntu?

Thanks in advance,

Jonathan Jesse