Restricting an Input Field to Visible Area

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Restricting an Input Field to Visible Area
\ Richard Helgor (8 Feb 2007)
. \ Joe Cutting (8 Feb 2007)

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Subject:	Restricting an Input Field to Visible Area
Group:	Flashcoders
From:	Richard Helgor
Date:	8 Feb 2007

Hi,

I've got an input field that I want to restrict users to only being
able to post as much as will fit into the field without scrolling
(approx. 500 chars). I can set the field to a max. chars of 500, but
this doesn't take into account line breaks, which allow the user to
write much less than 500 chars, but still extend past the visible box.

Is there an easy way I can restrict this to the visible box area, or
is it a case of parsing the content with a function on each keypress
to calculate the limit? I'm worried I will launch into something
complicated and time-consuming, while overlooking a simpler technique.

Thanks,
Richard.
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