observe_field, does this generate HTML?

Michael Chow
2007-07-14T21:39:40Z

I don''t have Rails installed at the moment, I''d like to check
myself,
but it''s just a simple curiosity.

observe_field fits into replacement tags <%= %>, which caught my
attention because as far as I know it''s just javascript observing a
field and should not stick anything into HTML. Is <%= merely used as an
enabling method, or will there actually be some sort of HTML object
there?

Also, does the observer have to come after the field it is observing or
can I stick them all at the top of the HTML?

Thanks.

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