Posted by Harlan Messinger on 12/20/07 13:20

Blinky the Shark wrote:
> Adrienne Boswell wrote:
>
>> Gazing into my crystal ball I observed Blinky the Shark
>> <no.spam@box.invalid> writing in
>> news:pan.2007.12.20.02.24.33.318594@thurston.blinkynet.net:
>>
>>> rf wrote:
>>>
>>>> "shapper" <mdmoura@gmail.com> wrote in message
>>>> news:a7ad3090-9d96-41c1-bbbd-
>> 506260d22b3f@l32g2000hsh.googlegroups.com
>>>> ...
>>>>> Hello,
>>>>>
>>>>> When should I give an ID to a tag?
>>>>> Only if I want to refer it?
>>>>>
>>>>> And is there any type of tags that should always have an ID? Inputs
>>>>> for example?
>>>> http://www.w3.org/TR/html401/struct/global.html#adef-id
>>> Corollary question: what's the best -- id or name? Or does that just
>>> depend? If the latter, on what?
>>>
>> In a form it makes a lot of difference.
>>
>> I can have:
>> Which one does not belong?
>> <input type="checkbox" id="field1" name="field" value="dog"> Dog
>> <input type="checkbox" id="field2" name="field" value="cat"> Cat
>> <input type="checkbox" id="field3" name="field" value="handbag"> Handbag
>>
>> I can get to the different radios using their id values. But if all are
>> checked, then server side I will get field=dog, cat, handbag. Since
>> handbag is not an animal, then I could style field3 to alert the user
>> they had made a mistake.
>>
>> Further, id can be used on almost any element, where name can only be
>> used on a few. I can put an id on a h2 element, but not a name, eg. <p>
>> The one thing I enjoy shopping for most is <a href="page.html#shoes"
>> title="Find out more about shoes">shoes</a>.</p> could go to <h2
>> id="shoes">Shoes</h2>
>
> Ah! I did not know that name could not be used with some elements that
> accept id.

http://www.w3.org/TR/html401/index/attributes.html

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