This week's book giveaway is in the OCPJP forum. We're giving away four copies of OCA/OCP Java SE 7 Programmer I & II Study Guide and have Kathy Sierra & Bert Bates on-line! See this thread for details.
We maintain session ids with log in, but which is invalidated only when we close the browser instead of at log out time. So, if i re-login without closing the browser i get the same session id. how to fix this.