Working Radiobuttons, clear search and refresh (see description)

Radiobuttons are working. If no buttons are selected a message will
appear and the default value will be set. Clear and refresh search are
set to //invalid now. They work, but after they are clicked, you cannot
make a new search. Also if you choose etc 1000 and write "flom" it will
crash because there is not a thousand "flom" that can be returned.