Rails - Jul 2005 - Upload Progress, Error in Ajax.PeriodicalUpdater

Hi,
I''m using Upload Progress class of rails and geting this javascript 
error in js console:
"*Ajax.PeriodicalUpdater is not a constructor*"

The view have somethink like:
<%= form_tag_with_upload_progress( {:action =>
''create_gallery''},
      { :name => ''new_gallery'',
        :begin => "alert(''begin'')",
        :finish => "alert(''finish'');" } ) %>

Some sugestion where can be the error??
Thank''s

-- 

Pedro C. Valentini
pedro-p14LI7ZcAE/pVLaUnt/cCQC/G2K4zDHf@public.gmane.org
+55 (21) 8708-8035

And
What version os prototype the rails use??
Because I upload to 1.3.0 and I think that it generate the error, but 
draganddrop libry need prototype 1.3.0.
...
and now?


Pedro Valentini escreveu:
> Hi,
> I''m using Upload Progress class of rails and geting this
javascript
> error in js console:
> "*Ajax.PeriodicalUpdater is not a constructor*"
>
> The view have somethink like:
> <%= form_tag_with_upload_progress( {:action =>
''create_gallery''},
>      { :name => ''new_gallery'',
>        :begin => "alert(''begin'')",
>        :finish => "alert(''finish'');" } )
%>
>
> Some sugestion where can be the error??
> Thank''s
>
-- 

Pedro C. Valentini
pedro-p14LI7ZcAE/pVLaUnt/cCQC/G2K4zDHf@public.gmane.org
+55 (21) 8708-8035