I installed oracle 10g(10.2.0.1.0)standard edition patched to 10.2.0.3.0 on two servers (production and disaster)

As i was later informed Data Guard (application Server guard works only with enterprise edition).
Is there a way that through standard edition i could set disaster to work as production in cases of failover??and how could that be done??only with sql scripting or is there another way too??