closing/ending a session in jsp

Hi guys i need help ending my session. I am using session just for parameter passing, my webpages doesnt need login logout function.

These are my basic code:

page1.jsp

<%

String prodlinesel = request.getParameter("prod_line");

session.setAttribute( "sessprodline", prodlinesel );

%>

page2.jsp

<%= session.getAttribute("sessprodline") %>

how,when &where do i end my session ? thanks so much

[469 byte] By [Btreksuna] at [2007-10-3 2:31:23]