Validation with Frames?

My page is set up in the following way:

outer border - with a frame (and separate page) within a smaller square in the center of the page. My form is in the center frame...but my submit button is in the outer border frame.

My question:

Is there a way to validate the form in the center frame, even though the submit button is in the border frame?

Thanks,

Melissa

You understood right.  I didn't think it was possible either...

This thing is...I am creating a training simulator for a company's website.  Their website is set up like this - the form is in the center frame and the outer border contains the submit (continue) button and the following validation occurs:
If no name, error message appears at top of screen "Please complete name"
If no address, error message "Please complete address", etc.

I have no idea how they did this, as they have hidden a great deal of code.  I have to replicate the website to look as similar as possible, and this is why I must find out how they did this.  Any suggestions as to ways to replicate without being in frames?  I have to have the scroll bar on the right side of the center form though - which is why I thought I would have to have frames.

Thanks,

Melissa