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Groups > comp.lang.javascript > #12567

Re: Removing a Control from the taborder

From "Jukka K. Korpela" <jkorpela@cs.tut.fi>
Newsgroups comp.lang.javascript
Subject Re: Removing a Control from the taborder
Date 2012-03-10 08:40 +0200
Organization A noiseless patient Spider
Message-ID <jjet0i$lkp$1@dont-email.me> (permalink)
References (1 earlier) <XnsA011B6483162eejj99@194.109.133.133> <1fuil7tf54q4gu2h40ous7k58q3766aaa9@4ax.com> <jje5bg$f47$1@dont-email.me> <4191797.g0LvDaAvTT@PointedEars.de> <jjejit$hcc$1@dont-email.me>

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2012-03-10 5:59, Norman Peelman wrote:

> On 03/09/2012 07:42 PM, Thomas 'PointedEars' Lahn wrote:

Please don't feed the troll.

>> Your logic is flawed. The HTML 4.01 Specification is definitive about
>> this:
>> values for the `tabindex' attribute outside the specified range are
>> *invalid*. It is specified accordingly in W3C DOM Level 2 HTML:
>
> Invalid,

Validity, as HTML 4.01 concept, is off-topic here, and it is defined in 
the HTML 4.01 specification, not in DOM specifications. As it happens, 
tabindex=-1 is invalid as per HTML 4.01, but not because of any 
out-of-range issue. It is invalid because the tabindex attribute is 
declared as NUMBER, which means a character-level restriction (only 
digits are allowed).

 > thereby causing the tabindex to be ignored.

No, the HTML 4.01 specification imposes no such requirement on error 
processing. And browsers do not ignore tabindex=-1.

If it is relevant, for some reason, that the markup in an HTML file 
conforms to an HTML 4.01 DTD, then you can still set tabindex to a 
negative value via JavaScript. Just note that in JavaScript, the 
corresponding property is spelled tabIndex.

-- 
Yucca, http://www.cs.tut.fi/~jkorpela/

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Thread

Removing a Control from the taborder Gene Wirchenko <genew@ocis.net> - 2012-03-08 13:56 -0800
  Re: Removing a Control from the taborder "Evertjan." <exjxw.hannivoort@interxnl.net> - 2012-03-09 00:07 +0000
    Re: Removing a Control from the taborder Gene Wirchenko <genew@ocis.net> - 2012-03-08 19:37 -0800
      Re: Removing a Control from the taborder Norman Peelman <npeelmandog@cfl.rr.com> - 2012-03-09 18:56 -0500
        Re: Removing a Control from the taborder Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2012-03-10 01:42 +0100
          Re: Removing a Control from the taborder Norman Peelman <npeelmandog@cfl.rr.com> - 2012-03-09 22:59 -0500
            Re: Removing a Control from the taborder "Jukka K. Korpela" <jkorpela@cs.tut.fi> - 2012-03-10 08:40 +0200
              Re: Removing a Control from the taborder Norman Peelman <npeelmandog@cfl.rr.com> - 2012-03-10 06:18 -0500
                Re: Removing a Control from the taborder Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2012-03-10 13:33 +0100
            Re: Removing a Control from the taborder Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2012-03-10 12:33 +0100
          Re: Removing a Control from the taborder Norman Peelman <npeelmandog@cfl.rr.com> - 2012-03-09 23:22 -0500
      Re: Removing a Control from the taborder Dr J R Stockton <reply1210@merlyn.demon.co.uk> - 2012-03-10 20:51 +0000
        Re: Removing a Control from the taborder Gene Wirchenko <genew@ocis.net> - 2012-03-10 23:55 -0800
          Re: Removing a Control from the taborder Dr J R Stockton <reply1211@merlyn.demon.co.uk.invalid> - 2012-03-12 19:46 +0000
          Re: Removing a Control from the taborder David Mark <dmark.cinsoft@gmail.com> - 2012-03-12 18:24 -0700

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