Shoutbox

Would it be possible to make a plugin that turns the song plugin automatically on or off depending on my status?

Say I was online, I'm happy for people to see what I'm listening to. If however, I was away doing something else but still listening to music, I'd rather people not be able to see what I'm listening to in case they think I'm still at the comp and bombard me with messages.

Currently I turn the plugin on and off manually, but it's a bit annoying.