I'd like the button function of the scroll ball on my Mighty Mouse to let me scroll through / choose keyboard language input. I've looked at system prefs for the mouse, but it looks like I might have to create a script for this, which I don't know how to do. 
Can anyone out there help me, either by explaining where I've misunderstood something, or by writing a script for me (and thereby accumulating some good karma )?
Can anyone out there help me, either by explaining where I've misunderstood something
, or by writing a script for me (and thereby accumulating some good karma )?