OS X Lion Inverted Scrolling Automation Shortcut

Question

As everyone will know (who has Mac OS X Lion), by default, scrolling is inverted to make it a bit like the iPhone.

Problem: There is no way to have "normal scrolling" for a USB mouse, and "natural/inverted" scrolling for the trackpad. The setting (even though it is listed in both the mouse and trackpad settings) applies to both.

Question: Could someone, who is experienced with Automator or AppleScipting, please give me a few tips on how to make a shortcut that can toggle the inverted setting? I need this as when I'm at home, I have my Mac Book Air plugged to my Keyboard, Mouse and Monitor, and I'd like a quick way to change this setting

Answer 1

This ought to do it:

tell application "System Preferences" to set the current pane to "com.apple.preference.mouse"
tell application "System Events"
    tell process "System Preferences"
        click radio button "Point & Click" of tab group 1 of window "Mouse"
        click the first checkbox
    end tell
end tell

Final Working Solution:

tell application "System Preferences"
    activate
    set current pane to pane "com.apple.preference.trackpad"
end tell

tell application "System Events"
    tell process "System Preferences"
        click radio button "Scroll & Zoom" of tab group 1 of window "Trackpad"
        click checkbox 1 of tab group 1 of window "Trackpad"
    end tell
end tell

tell application "System Preferences"
    quit
end tell