javascipt issue using multiple forms and getting specific data

I have a web page that at the top has 2 text boxes, (ID, part).
These text boxes are in a form with a submit button.

Below this form I have a table that has 3 columns and the fields depend on the records found in the database.
Each row is then a new form and the form code is:

Code:

---

<form action="" method="get" name="frmPart<?php echo $row_rsPart['ID']; ?>">

---

Also each row has a submit button and I want when clicked the data for that form to be populated into the text boxes at the top of the page.

Does anyone have any suggestions on how I might do this?

THanks.