Adding a "select all" option with checkboxes

Forgive my ignorance on this, but I can’t seem to find it anywhere. I have a form that visitors use to subscribe to my newsletters. As of right now, I have one preselected (my main newsletter) and the rest the reader must check to select which ones they want to subscribe to.

I would like to allow people the option of a “select all” box, so if they want to subscribe to all the newsletters, they can do so with one click of the mouse instead of having to click each one individually. I know this can be done, I’ve seen it, but can’t locate one now to view the coding.

Here’s the page where the form resides
[url]http://www.familycorner.com/services/lists.shtml[/url]

Here’s the basics of the script:

<form name=”” method=”post” action=”/12all/box.php”>

Your name:
<input name=”name” type=”text” id=”name” value=”” size=”16″>
<P>
Your email address:
<input name=”email” type=”text” id=”email” value=”” size=”16″>

<input type=”checkbox” name=”nlbox[16]” value=”5″ checked> <FONT size=2><b>What’s New Update</b> </FONT>

<input type=”checkbox” name=”nlbox[7]” value=”6″> <FONT size=2><b>Education Corner</b></FONT>

<input type=”checkbox” name=”nlbox[6]” value=”7″> <FONT size=2><b>Creativity Corner</b></FONT>

<input type=”checkbox” name=”nlbox[15]” value=”8″> <FONT size=2><b>Time To Eat</b></FONT>

<input name=”funcml” type=”radio” value=”add” checked>Subscribe
<br>
<input name=”funcml” type=”radio” value=”unsub2″>Unsubscribe
<P>
<input name=”p” type=”hidden” id=”p” value=”3″>

<input type=”submit” name=”Submit” value=”Submit”>
<P>
</form>

That’s the basics of the script, there are more checkboxes but I didn’t include them as you can get the idea above ?

If anyone can help me with this, I sure would appreciate it!

Amanda Formaro, President
FamilyCorner.com Magazine, Inc.
[url]http://www.familycorner.com[/url]

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