obsession (Openbox session tools)

Obsession displays dialog where you can choose if you
want to quit, power off, suspend or hibernate the computer.

And provides:

 * obsession-logout displays a dialog where you can choose
if you want to quit the session, power off, suspend or
hibernate the computer.
 * obsession-exit: this is the command line version of
obsession-logout.
 * xdg-autostart start automatically programs defined in
/etc/xdg/autostart and ~/.config/autostart.

For better appearance, please install "murrine" engine.