Refresh div with s:submit?

[Maria Lujan Salvadori]

Hi, I'm starting with ajax and I want to reload a div after pressing a
button. I use the s:submit and in the targets set the id of the div to be
refresh. I would like just to refresh the content of this div, is necessary
to "draw" the content of the div in a separate jsp and the result of the
submit sent to this jsp? Is there any other way to do that?
Thanks in advance
ML