alv header??

hi experts,

i want to print a header text under which there will be certain coloumns with sub colom heading.the sub colom can be printed with fieldcatalog reptext_ddic

but how shall i print the main header ???

eg.

sales document data

-

---

sales org

division

i want ot know how to print 'sales documnet data' in alv grid

plz help me as it is urgent.

thank you