Calling 1 program from another program

Hi all,

I have a prog1 which needs to call prog2.Prog 2 has only one selection parameter on the seelction screen and is a normal report with a selection screen.

Now for calling the prog 2 in prog1,what options do I have??Can i use the SUBMIT statment only or can I create a FM and embeedd my prog2 in that FM?