Session Invalidation

[Lakshmeenarayana G G]

hi.. I want to capture the event when my user logsoff or click the 'x' button in the top-right corner of browser window. How can i do some finalising jobs..like writing to log file about the log off events. Please help... i would really appreciate if i get detailed answers for this.   Thanks for the time.   Regards.   L G Goundalkar Intertec Communications Pvt Ltd INDIA