Lock or Unlock the OSX dock

OSX Dock LockerUnlocker

-- Version 1.0.2

set currentStatus to "0"
try
	set currentStatus to do shell script "defaults read com.apple.dock contents-immutable"
end try

if currentStatus is equal to "0" then
	tell application "Finder" to display alert "Lock the icons in the Dock?" buttons {"Cancel", "Lock"}
else
	tell application "Finder" to display alert "Unlock the icons in the Dock?" buttons {"Cancel", "Unlock"}
end if
copy the result as list to {theButton}

if theButton is "Lock" then
	do shell script "defaults write com.apple.dock contents-immutable -bool true"
	tell application "Dock" to quit
else if theButton is "Unlock" then
	do shell script "defaults write com.apple.dock contents-immutable -bool false"
	tell application "Dock" to quit
end if