is it possible to give a select element a new options-array ?

Hi everybody, I am working with some really ... strange scripts right now. My problem is, that I have a select: $newform->addElement( 'select', 'positioning', 'Position:', $position ) ; [...] This form is cloned along the way via $newer_form = serialize(unserialize( $newform)) ; But now I want to change the select-list because $position has changed. I tried: $newer_form->loadArray( $position) ; But: load() and loadArray only append to the existing array I need something like refresh Array... Or do I have to delete the Select-Object and add it again ? Thanks for reading, Bjoern.