Mac - Toggling VPN Connection

gistfile1.sh

#!/bin/sh 
osascript <<END
tell application "System Events"
    tell current location of network preferences
        set VPNservice to service "VPN-NAME"
        set isConnected to connected of current configuration of VPNservice
        if isConnected then
            disconnect VPNservice
        else
            connect VPNservice
        end if
    end tell
end tell
END