Is it possible to write a script to change the Energy Saver settings in OS X (10.7.3)? Basically, whenever I know I'm going to be gone, or if I'm going to sleep, I change the Energy Saver settings in System Preferences in OS X (10.7.3) for Power Adapter to:


Computer sleep: 1 min
Display sleep: 1 min


If I know I'm going to be around a while, I like to change the Energy Saver settings for Power Adapter to:


Computer Sleep: 15 min
Display Sleep: 15 min


Is it possible to script this sort of change? I do it often enough that a script would be worth it.
Look for the section titled "Changing Power Management Settings" in this MacScripter guide. An AppleScript example from the guide:


do shell script "pmset sleep 30" with administrator privileges