PHPPage to submit date to DB

The page is for a Purchase Order Generator. The Supplier and Deliver To fields are all prefilled via a java autocomplete script. I need the page to submit the data into the Database that I have created. Users must be able to submit additional items using the + and – buttons SupplierID – Inserts into [login to view URL] delivertoID - Inserts into [login to view URL] SupplierCode – Inserts into [login to view URL] Description – Inserts into [login to view URL] Quantity – Inserts into [login to view URL] Unitprice – Inserts into [login to view URL] Total – Inserts into [login to view URL] The Total item on the form needs to be generated using jquery by multiplying the Quantity field by the Amount Field There are 3 additional fields in the purchaseorder table that need to be filled as well using a formula when the form is submitted. [login to view URL] – This is where all the Totals on the purchase order have been added together. [login to view URL] – this is the [login to view URL] * 0.15 [login to view URL] – this is [login to view URL] + [login to view URL]