Power switch to actually turn off my computer

[Charles T. Smith <cts private yahoo gmail com>]

Hello, how can I configure my SuSE 13.1 system to shut down when I press the
power button?

In SuSE 12, you had to make a change in:

  /etc/acpi/events/power_button

but that directory doesn't exist in 13.1.

I don't want it to shutdown when a user is logged in, only when at the gdm
welcome screen.

I looked in xorg.conf(5), but didn't see anything appropriate.