[DHTML] Click to Activate Override Wizard

**jscheuer1** · 04-28-2007, 02:40 PM

1) CODE TITLE: Click to Activate Override Wizard

2) AUTHOR NAME/NOTES: jscheuer1

3) DESCRIPTION: A wizard that generates (from a working multimedia object's* HTML code) the code required to override this silly 'click to activate' business in IE, Opera, perhaps others.

The wizard works in (tested with) IE 6+, FF 1.5.0.11, Opera 9.01, and outputs code that can be used in any browser that supports document.write. It also outputs non-javascript enabled fall back code.

4) URL TO CODE: http://home.comcast.net/~jscheuer1/s...activate_w.htm

*Multimedia Objects like:

Flash
QuickTime
Media Player
etc.

**thetestingsite** · 04-28-2007, 05:12 PM

Nice script John (as usual). I tested it in IE7, FF 2.0.0.2/2.0.0.3 on Windows XP (Home and Pro) and it works fine.

**tech_support** · 04-29-2007, 04:13 AM

Ha. Nice script.
But, your page doesn't validate:
http://validator.w3.org/check?verbos...activate_w.htm

**jscheuer1** · 04-29-2007, 04:34 AM

Originally Posted by tech_support

Ha. Nice script.
But, your page doesn't validate:
http://validator.w3.org/check?verbos...activate_w.htm

Those are errors produced because the validator is trying to validate javascript code as HTML code. It is the validator that is in error.

The actual code is valid.

**tech_support** · 04-29-2007, 04:39 AM

Oh, ok.
BTW, I love the "Supreme Commander Coder"

**jscheuer1** · 04-29-2007, 05:29 AM

Originally Posted by tech_support

Oh, ok.
BTW, I love the "Supreme Commander Coder"

Thanks, and just to make the validator happy, I made the script it barfed on use a hex entity. Usually it barfs on stuff like so:

Code:

document.write('<a name="bob">Bob</a>');

Because it doesn't see the a tag as open (can't have a tags inside a <script> tag), but does see it getting closed. That can be fixed by escaping the /. However, this time it interpreted a regular expression as a close tag, completely erroneous on its part. Easiest fix for that was making the code external, but then I thought about it and found I could substitute \x3c for <.

**mwinter** · 04-29-2007, 07:20 AM

Originally Posted by jscheuer1

Those are errors produced because the validator is trying to validate javascript code as HTML code.

No, it isn't. If it did, it would complain about:

HTML Code:

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN">
<title//<body<script type="text/javascript">
<p id=">
</>

but it's perfectly valid. All that the validator is trying to do is find the end of the script element so it looks for anything that matches an end-tag production.

It is the validator that is in error.

You should know better than to write things like that.

The actual code is valid.

No, it wasn't. Among the minimisation features of SGML (some of which are enabled in HTML) are unclosed end-tags. These are like normal end-tags except the TAGC (>) is omitted. However, an unclosed end-tag must be followed by a STAGO (<) or ETAGO (</). Instead, it was followed by a comma.

Mike

**DimX** · 04-29-2007, 07:50 AM

Originally Posted by jscheuer1

Easiest fix for that was making the code external, but then I thought about it and found I could substitute \x3c for <.

What about enclosing the script in a CDATA block?

**jscheuer1** · 04-29-2007, 08:13 AM

It wasn't a tag at all.

**mwinter** · 04-29-2007, 08:28 AM

Originally Posted by DimX

What about enclosing the script in a CDATA block?

The content model for a script element (in HTML) is CDATA, therefore a marked section won't be interpreted as such; "<![CDATA[" and "]]>" are just plain character sequences.

Originally Posted by jscheuer1

It wasn't a tag at all.

As far as a SGML parser is concerned, it is: it parses like one, therefore it is one. The fact that you didn't intend for it to be an end-tag, and that it isn't an end-tag for an element recognised by HTML is of no consequence.

Mike

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