gistfile1.applescript

tell application "System Events"
	tell current location of network preferences
		set VPNservice to service "My VPN" -- name of the VPN service
		if exists VPNservice then connect VPNservice
		
		repeat until (connected of current configuration of VPNservice)
			delay 1
		end repeat
		
	end tell
end tell

-- throws this error on 10.9.1 (worked on 10.9.0)
-- error "System Events got an error: Can’t get network preferences." number -1728 from network preferences