[TYPO3] Can a submit input in a form execute a javascript function that affects the next result?

[dave typo]

I'm trying to make a submit button submit information to a php array
(which works), as well as send a javascript function that shows hidden
div tags.

So

the form a user initially fills out sends a file and image to the
database. After pushing submit, the user can see a thumbnail of the
image, and a link to the user's file. However, there are other div
tags I want to be shown as well.

Can a submit button also activate javascript on the output ?

would this be written in the php file?


thanks for any help.

-Dave