content: try
  	tell application "System Preferences"
  		(run)
  		set current pane to pane "com.apple.preference.trackpad"
  	end tell
  	tell application "System Events"
  		tell process "System Preferences"
  			delay 0.6
  			click radio button "Scroll & Zoom" of tab group 1 of window "Trackpad"
  			click checkbox 1 of tab group 1 of window "Trackpad"
  		end tell
  		
  		tell application "System Preferences" to quit
  	end tell
  end try