close session trigger event

I would like to trigger a event after the session close.

I try to close the session by the following code.

button {

FacesContext context = FacesContext.getCurrentInstance ();

HttpSession session = (HttpSession) context.getExternalContext

().getSession (false);

session.invalidate ();

}

those event triger by a button , and I found that it can trigger a even in session.destroy(), but if I close the browser , session.destroy does not trigger.

Do anyone can help me to solve this problem.

Thanks

[563 byte] By [mickeyleehk] at [2007-11-26 8:58:29]