When a user logs on or logoff, I add their name to a database.
If a user clicks on the application logoff button, all is well. If they just close the browser window, then they are left in a logged on state as far as the server is concerned and will remain that way until the server side is restarted.
How to capture user logoff time in case when X button or Alt-F4 or referesh button is cliek? Also what will happend in case of multiwindow?