simple controller action

Permalink
I have a radio button on the front that needs to go to a action in a form controller called remove


I have the following structure:

page_types/form.php
form.php has a view -> that one works

form.php has a public function remove() -> that one doesn't work

I tried creating single pages like this:

controllers/form.php
-> in form.php add remove()
-> add form/remove.php in single_pages
-> add /form/remove to the cms in single pages.

All i get is a empty page, and not the test message in my controller action.

It is taking me an hour now to do something that should be so easy.

Can anyone help me out and tell me how to create a simple action in a controller which my ajax call should go to ?