README

Global: oBiz.

1. clients list, add sort by, right header.

2. Backup/Restore

3. duplicate invoice / recuring

Inv_New Save:

all the data for invoice is stored in oInv defined by Zustand. now, need save it to database. before saving, need check

1. Invoice Number is identical

2. client company name can not be null

3. if possible, create a seperated file for saving (since using Zustand, and all the data in oInv, no parameter need pass)

Inv_Pay:

1. Home Inv List find an invoice, setOInv, continue to inv_form with "create_new".