sending xsl data to a servlet

Hello,

I am trying to send data to a java servlet in hidden fields but I am doing so from an xsl file.
Ordinarily, I would be doing this from a html file and it would appear like this:
<input type= hidden name=FirstName value=sName>

and then I would do my req.getParameter(FirstName)

But my value always shows up as the literal, FirstName. How can I carry the info over to the servlet to display it?

Any help would be very appreciated.
Kathy