Checkbox value in forms

[lord_havoc]

If you have a form with checkboxes, something like

<input class="check" type="checkbox" name="HTML" id="HTML" value="HTML">HTML

And the email I receive looks like this:

First_name: Shayne
Last_name: Martin
Email: apply@cyanideperfection.net
Css: CSS
Ftp: FTP
Html: HTML

How would I get it to say "Yes" if the item is checked and otherwise "No"? So it looks like this:

First_name: Shayne
Last_name: Martin
Email: apply@cyanideperfection.net
Css: Yes
Ftp: Yes
Html: Yes

Sorry this is a bit confusing. I don't really know any other way of explaining myself.

<EDIT>
Would this even be possible for the HTML end to handle?
Would the PHP have to take care of it?
</EDIT>

[Twey]

$_GET['HTML'] ? 'Yes' : 'No';