MacOSX Grayscale Mode Toggle Applescript

ToggleGrayScaleMode

(*
ToggleGrayScaleMode for MacOSX 10.9 Mavericks
works as of 15 april 2014

This is an AppleScript UI script to toggle GrayScaleMode in System Preferences.
I am red-green colorblind and grayscale helps a lot...

Works for me. Hope it can be usefull for you.

Mike
[email protected]
*)


tell application "System Preferences"
	activate
	tell application "System Events"
		tell application process "System Preferences"
			set frontmost to true
			delay 1
			
			click menu item "Accessibility" of menu "View" of menu bar item "View" of menu bar 1 of application process "System Preferences" of application "System Events"
			-- add delay if needed
			delay 1
			
			-- The MAGIC word here is SELECT .... you are SELECTing a row NOT CLICKing a row !!!!!!!!!
			select row 2 of table 1 of scroll area 1 of window "Accessibility" of application process "System Preferences" of application "System Events"
			
			-- Now you can CLICK the checkbox 			
			click checkbox "Use grayscale" of window "Accessibility" of application process "System Preferences" of application "System Events"
			-- add delay if needed
			delay 1
			
			click menu item "Quit System Preferences" of menu "System Preferences" of menu bar item "System Preferences" of menu bar 1 of application process "System Preferences" of application "System Events"
			
		end tell
	end tell
end tell

In the interest of simplifying... How about this?
(sorry, don't know how to post applescript code properly)

tell application "System Preferences"
activate
reveal anchor "Seeing_Display" of pane "Accessibility"
tell application "System Events" to tell process "System Preferences"
click checkbox "Use grayscale" of window 1
end tell
quit application "System Preferences"
end tell

Thanks for developing this! I had another script (similar to @janthenat's); however, it stopped working with El Capitan.