There was some talk in the Chatterbox about soemthing simlar to this, and if i recall there were a few suggestions. The best i have are :

    Use the OnLoad and OnUnload DHTML funtions to hit a site that records the information. The problem with this is that if the close the browser rather that leave the site, it will not register the exit, and wil continue to charge (not good).

    Use the websever logs. Many times they contain the connect and disconnect times, which could be cross references based on the IP.

    And, because connection speeds vary, if you have access to the amount of data sent, i would think tht that would be preferrable to time, but depends on the application <cough>_porn</cough>.

Hope that helps

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OH, a sarcasm detector, that’s really useful