I need a historical on hand inventory qty

Please help!

I need to show a detail of transactions by product, transaction date, and document#.

I have a transaction table with all the transactions (PO, Shipmnt, etc..) and another table with the OnHandQty as of today.

How can I furnish the report to supply me with this:  Assuming I have 100 Qty On Hand today and my date range : startDate to EndDate

Date:          Product:          Doc#:      Qty_In:     Qty_Out:  

Jan 1          Pen                 0001              10               -20

Jan 10        Pen                  0009               100           -100       

I want it to give me an opening balance by day.

thanks,