send email when checkbox checked

This may sound weird and I don't know if it is possible but here is what I am trying to do:

when a user checks a checkbox I want it to automatically send me an email.

I don't want the user to have to click a submit button first. Just have them click on a checkbox and doing that will send me an email.

Any Ideas?

 

Javascript + Ajax + PHP.
That will do what you want.

http://www.jibbering.com/2002/4/httprequest.html
http://www.php.net/mail