trap Browser Close

[Abhishek Pamecha]

Hi,

Can I trap browser close  event and send the message back to the server
when then user either closes the browser window or kills the browser.
I have to check in some licenses once the user session is over.
I am using apache 1.3.12 with tomcat 3.2.2

Please let me know of any possible approach....

TIA
Abhishek

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