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From: "Christoph M. Becker" <cmbecker69@arcor.de>
Newsgroups: comp.lang.javascript
Subject: Re: How fetch data from form for javascript screening
Date: Wed, 13 Jul 2016 14:30:26 +0200
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On 12.07.2016 at 08:41, Robert Baer wrote:

> <script type="text/javascript">
> 
> // do not know what to do to get those variables

Read <http://pointedears.de/scripts/faq/cljs/#domRef>.

>     document.writeln("getElementById via value does not work and
> crashes.<BR>");
> //    Qnam=document.getElementById("QN").value;

Obviously, there is no element with id "QN".  Therefore
document.getElementById("QN") returns `undefined`.  Accessing a property
of `undefined` is supposed to error.

> //  following gives undefined
> //    Qmsg=document.getElementsByName("form-control").innerHTML ;
> //    document.writeln(Qmsg+"|<BR>");

There is no element with name "form-control".

-- 
Christoph M. Becker