Frames HTML & Servlets

hi,

i have a servlet that generates HTML page with two FRAMES.
The frame src of both frames are two servlets.
the bottom frame is a Form. And there is a res.setHeader("Refresh" , "1; URL=...") function in the servlet that has created the bottom Form page.

And like for example: <a href="http://home/servlet/sampleServlet" target="_top"> click here </a>
will execute the sampleServlet(a servlet program) in full browser window.

Same thing I want to achieve using
res.setHeader("Refresh" , "1; URL:http://home/servlet/sampleServlet"); where in the sampleServlet will execute after 1sec automatically. with out waiting even for the clients respnse.
i.e. the sampleServlet should be executed in full browser window.
how do i do this.
joy ben.