Not Valid XHTML 1.0 Transitional

[aspr1n]

Eek! Nasty error to be getting from the W3C parser.

I have two tags causing it:

One is a javascript event 'onChange' for a jump down drop menu, which the parser claims 'no attribute "onChange"'

I get the same error against an 'onClick' event.

Anyone got any solutions or am I missing something?

cheers,

asp

[korkus2000]

Have you tried them all lower case like onclick?

[choster]

All lowercase was also suggested in an earlier thread [webmasterworld.com].

A couple of sources say that onchange is valid only inside of forms, and onclick is "Not valid in base, bdo, br, frame, frameset, head, html, iframe, meta, param, script, style, and title elements." Could that be related?

[g1smd]

So, inside which tags are you using those two attributes?

[aspr1n]

'onChange' (or onchange as I'll now try) is in a form, and 'onclick' is in

<a href=# onclick= ...>

asp

[lorax]

Here's some interesting reading on the event and event listener elements. These elements are specifically designed for XHTML UI events.

Example 3.1

<img id="b" ...>
<eventlistener id="a" type="(onclick)">
<script>
... some scripting code ...
</script>
</eventlistener>
</img>

In Example 3.1, an eventlistener element is registered with the img element. This eventlistener element will be triggered when an onclick event targets or bubbles through the img element.

[w3.org...]

[andreasfriedrich]

Although I know that a lot of people here say that DTDs are not something you would want to read, they give the authoritative answer to those questions.

[w3.org...]

[lorax]

Ya know Andreas,
Ever since we last chatted about DTDs I've been boning up on them and found you're spot on about them. They aren't so bad if you can get past that wall of text. It is intimidating at first.

[andreasfriedrich]

I like to compare the DTD angst to the fact that a lot of law students prefer to read text books instead of court decisions or the actual code. While text books may be easier to read they are far from being authoritative. You might use them in the academic realm, but in the end itīs the written laws and previous court decisions that count.

Glad you got around to using DTDs for what they are worth.

Andreas