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From: Thomas 'PointedEars' Lahn <PointedEars@web.de>
Newsgroups: comp.lang.javascript
Subject: Re: Having trouble reading a table input cell.
Date: Thu, 12 Nov 2015 20:14:12 +0100
Organization: PointedEars Software (PES)
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don lancaster wrote:

> 
> as in

The message body should contain the complete problem description.

>    var q1 = document.getElementById("fp00").value ;
> 
> this returns a "can't read a null" error.

The error message is probably “null has no properties” instead, indicating 
that there is no element with ID “fp00” in that document.

It is also important in which environments [here: browser(s)] you have 
tested the code.

> Code is similar to the "Target Power" part of
> http://www.tinaja.com/demo28a.shtml

In order to help you, we also need the *actual* code if it is short, a 
reference to it (by URI) if is longer.  But you should debug yourself first.

Please read the FAQ for recommendations on how to post here, and for 
references to and about browser developer tools.

-- 
PointedEars
FAQ: <http://PointedEars.de/faq> | SVN: <http://PointedEars.de/wsvn/>
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