Mimics the alt tab behaviour using CornerClick, Witch & MouseTools on Mac. http://gschueler.github.io/CornerClick/download.html http://www.hamsoftengineering.com/codeSharing/MouseTools/MouseTools.html http://manytricks.com/witch/

alttab

global windowx
global mousex

tell application "Finder"
  set boundlist to get bounds of window of desktop
end tell

set windowx to item 3 of boundlist as string
set mousex to do shell script "/Users/firesofmay/mybin/MouseTools -location | head -n 1"

delay 0.2

tell application "System Events"
	key down option
	try
		
		repeat while (windowx = mousex)
			keystroke tab
			delay 0.2
			
			tell application "Finder"
				set boundlist to get bounds of window of desktop
			end tell
			
			set windowx to item 3 of boundlist as string
			set mousex to do shell script "/Users/firesofmay/mybin/MouseTools -location | head -n 1"
			
		end repeat
	on error errStr number errorNumber
		key up option
		error errStr number errorNumber
	end try
	key up option
end tell