I am getting an error when I check my page for W3c validation. I've included an image of the error. You can also check the validation at the bottom of the page. Maybe when i designed the form I missed a step naming something..

www.stemcell-savethechildren.com/ask.php

Looks to be an element that's being held for a script that might be used. If the form works as expected I wouldn't worry about it.