applet for all WMs

[Bjørge Solli]

Hi, I would like to have a small applet that starts when a user logs in 
to a window manager and that I can have running in the background to 
notify users of events (e.g. using libnotify). Is there a standard that 
could make this work on all WMs? Any tutorials or howtos to help me 
along, preferably using standard bash or python? I am conserned on how 
to make it stop when the user logs out or his session is killed for some 
reason. Don't want zombies keeping the users network home mounted. If 
you have any advice on these topics please let me know.

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Regards, Bjørge Solli