Hide formula and multiple select fields!

Hide formula and multiple select fields!

Hi

I would like to hide 3 "multiple select fields" via script in "form action" and under "load" because I would like them to be depending (and visible) on the value on user input of a dropdown.

I though get the message;

Error at line : 34 hide/show/enable/disable fields is not applicable for formula and multiple select fields

How can I then hide this on load?

Br Dennis Skouboe