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Subject Author Date
custom tags and elements Andy Fish 12-05-2006
Posted by Andy Fish on December 5, 2006, 4:57 am
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Hi,

I would like to include extra "hidden" information in a generated HTML page
that can be used by javascript functions.

I realise that most browsers seem to ignore any tags and attributes they
don't understand, but from what I can tell the standards do not allow me to
make up my own tags or attributes as they will fail validation.

is there any standard element name that can be used for such a purpose i.e.
passes validation but never produces any output (and ideally allows nested
elements to be rendered normally too)

Andy





Posted by Richard Cornford on December 5, 2006, 5:08 am
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Andy Fish wrote:
> I would like to include extra "hidden" information in a generated HTML page
> that can be used by javascript functions.
>
> I realise that most browsers seem to ignore any tags and attributes they
> don't understand, but from what I can tell the standards do not allow me to
> make up my own tags or attributes as they will fail validation.
>
> is there any standard element name that can be used for such a purpose i.e.
> passes validation but never produces any output (and ideally allows nested
> elements to be rendered normally too)

If you want to put extra data into a web page for use by javascript why
not put it inside a SCRIPT element, probably in a structure made up of
Array and Object literals (as anything that can be represented with a
mark-up tree can also be represented in such a form).

Richard.


Posted by Ben C on December 5, 2006, 5:31 am
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> Hi,
>
> I would like to include extra "hidden" information in a generated HTML page
> that can be used by javascript functions.
>
> I realise that most browsers seem to ignore any tags and attributes they
> don't understand, but from what I can tell the standards do not allow me to
> make up my own tags or attributes as they will fail validation.
>
> is there any standard element name that can be used for such a purpose i.e.
> passes validation but never produces any output (and ideally allows nested
> elements to be rendered normally too)

You can just use div in conjunction with some class name and use CSS to
set display: none for divs of that class.

div.data
{
display: none;
}

<div class="data">
...
</div>

Posted by Jukka K. Korpela on December 6, 2006, 7:50 am
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Scripsit Ben C:

> You can just use div in conjunction with some class name and use CSS
> to set display: none for divs of that class.

Among the different suggestions that have been made, this is definitely the
worst. It would mean that any CSS-disabled user agent sees the data as
normal content. This includes search engines.

--
Jukka K. Korpela ("Yucca")
http://www.cs.tut.fi/~jkorpela/


Posted by Spartanicus on December 5, 2006, 5:38 am
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>I would like to include extra "hidden" information in a generated HTML page
>that can be used by javascript functions.
>
>I realise that most browsers seem to ignore any tags and attributes they
>don't understand, but from what I can tell the standards do not allow me to
>make up my own tags or attributes as they will fail validation.
>
>is there any standard element name that can be used for such a purpose i.e.
>passes validation but never produces any output (and ideally allows nested
>elements to be rendered normally too)

What is it that you are actually trying to do?

--
Spartanicus

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