Clear labels and put fields inside form

Hi,

I want to clear the label fields and put the name of the label inside my form. I found this helpful link (http://www.gravityhelp.com/clearing-default-form-field-values-with-jquery/ ) but it's not clearing.

I added the code to my header.php file. Is it possible my theme doesn't have JQuery? How can I add Jquery, or is their an updated work around to clear the fields and put text inside? I assume you still use "default value" to put text inside?

Thanks,
Stephen

Sure, David. Email sign up is on our homepage:
http://virtuecard.org/

Okay, but maybe my wording was confusing. What I want is for the field title which is "E-mail" to not appear....as in, I'm already telling the user what to do, so I don't see the need to have the label "e-mail' above it.

How can I remove the label from forms?