Spinner in New Line

Hi everyone,
i'd like to use the spinner object in my project, but there seems to
be some kind of bug or i did something wrong:
http://img32.imageshack.us/img32/1848/spinnererror.jpg
I explained the error on that image. I got a table (the error occurs
outside the table, too) with several inputs that should use a spinner
(input class = "spin") and i am using the code
$(function() {
$('.spin').spinner();
});
So i really don't why the spinner is displayed in the next line.
I'd appreciate any help of you guys :)
cheers
stefan