Anyone know of a way to have any netware afp shares dismounted when an
apple laptop is put in suspend mode?

We limit student concurrent logins to 1. Students are using iBooks and
mount a novell share. Instead of powering off or logging off the iBook,
they just close the device which puts it in suspend mode. Connectivity
to the airport is disrupted but OS X does not close the socket holding
the share open. Thus they remain logged in to the network. The next
workstation they try to log in from complains they are already logged in.

I'm thinking if there is a way to have the iBook dismount shares when
suspend is activated this would log them out of the network.