bapi gl a/c with "BAPI_GL_GETGLACCPERIODBALANCES"

Hii,

I am using "BAPI_GL_GETGLACCPERIODBALANCES" function module to get period balances

In my selection screen I have to show

A/c no,Date,Company Code and business area.

I am getting data on company code and a/c no but i am not getting data on date and business area.

Please explain how to show that.....

thanks.....