Javascript + PHP/mySQL

[Moritz]

Hello

I have a drop down list that is created from a mySQL database. When a user selects a different item in the list, I want to update a textfield with a subtotal price based on what they have selected.

So I am trying to build a Javascript function "subtotal()" that calls the price of an item selected in the dropdown menu using <select onChange="subtotal()">, adds it on to the figure already there, and displays the current subtotal in a dynamic text box.

Could anyone help me define the Javascript function? Or point me to a working example?

Thank you very much,
Moritz Gaede
[e-mail]

[sid]

check http://javascript.internet.com

[leatherback]

Hi,

Have a look at the source of a page that already uses this:

http://www.hemiparasites.nl/content/uregistration.php

J.