Declare Crtat and Atrat because screen savers use these variables.
Declare Crtat and Atrat because screen savers use these variables.

Pointed out by:	Nobuyuki Koganemaru <kogane@koganemaru.co.jp>

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase