Running script on network connection

[David Björkevik <david bjorkevik se>]

Hi List

I'd like a script to be run when I get connected to a network, similar 
to /etc/NetworkManager/dispatcher.d/, but I want the script to be run as 
my logged in user, within my desktop session.

My use case is that I'd like to have Synergy launched whenever I connect 
to the network which hosts the Synergy server.

This could be taken care of by a running D-Bus listening python script, 
but I'd like to avoid the overhead.

Is this possible?

/David