A script to keep Pandora from timing out?

I have a Pandora account. I use it in conjunction with a Mac Mini that I have rigged up as a music server for my little house. The Mac Mini is located in the attic and my Pandora account “times out” and stops streaming music after 5 hours. So, at some point I have to venture up to the attic and select the “I’m still listening” button. It’s a bit of an annoyance.

Does anyone know if there is a script available that will keep this connection from ever timing out?

The Pandora FAQ on their website states:
“Pandora will time-out after one hour without the Pandora Tuner receiving any input (giving a “Thumbs Up” or “Thumbs Down,” changing to another station, skipping a song, pausing and resuming a song, changing the volume, or any other interaction on our homepage).”