screen saver

Hi,

Can anyone point me to the syntax to disable/change the screen saver? (or if this is even possible).
I’m having a hard time finding any documentation for any syntax outside of the basic commands. For instance, I was given a script that gets the application file id of a file…where could I find the documentation for commands like these? Apples website doesn’t seem to offer much outside the basics…

Any help on finding more specific commands (and help on the screen saver) is greatly appreciated…

Thanks,
Jason