This is something people stumble upon once in a while : )
Take a look at this patch http://dev.rubyonrails.org/ticket/11142

-- kangax

On Jul 9, 6:01 pm, pedz <[EMAIL PROTECTED]> wrote:
> I don't consider this a bug report.  Just a report with perhaps an
> unhappy face attached to it.
>
> I have an input element of type text in a form nested down inside a td
> element whose display is none.  getHeight() in that case returns 0.
> (getWidth() does too).
>
> I happen to be testing on Firefox 3.
>
> What I plan to do to solve this is hook in and recompute everything
> when this element is shown but if anyone knows of another tact, please
> let me know.
>
> Also, getPosition returns offsetWidth and offsetHeight sometimes and
> clientWidth and client Height other times.  In my particular, twisted
> case, I'd actually like to have scollWidth and scrollHeight but I know
> that many other times, that is not what is desired.
>
> Thank you
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