How comment a block in 4gl?

Can somebody tell me, how can i set a program-block in comment? Arastoo Varahram + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + * * * * * * * * * * * * * * * * * * * * * * * * * * * * * + + * * + + * V Nice Wishes From Berlin * + + * A ----------------------- * + + * R * + + * A R A S T O O * + + * H * + + * R * + + * A * + + * e-Mail: arastoo.cs.tu-berlin.de * + + * * + + * * * * * * * * * * * * * * * * * * * * * * * * * * * * * + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +