Tab-Form with a sub-form appearing

[Guest]

I would like to have a main-form with a sub-form made up
of a Tab-Form with seven selections:

Each tab when selected would add a Dept_Code to the
Dep_Table_Code (text like "Accting") then bring up a sub-
form of only the records for that Dept_Code for input.

Then save the (updated) records and allow the next tab
selection, what ever it might be (in any order)

Hope this makes sense?

Linda