todo:
    - multi department access ***
        - merge staff same name but different department
            - doctor นายแพทย์ ทวีชัย
    - run script
        - update level's nurse 
        - report k. boy (sub detail) -> ok
    - ** update accounting 
        - link ref -> ok
        - bug -> ok
        - wht (david) -> p yui test

===============================

    - compute labor cost
    - update level -> ok
    - set patient_id with domain state=='admit' -> ok
    convbal -> not yet (wait yui) -> ok but have to update memo
    post 10,000 invoices per one time  -> ask david
    patient & staff
        - split name -> not yet
    staff have multi department -> added but set have to set permission
        - many2many
    show epo(yes) in list of hd case ->ok
    matching payment > ok
    create contact from staff -> ok
    script to clear invoice -> ok