Hi,
  Can any body let me know how should i track a user
session when user leaves my domain.

I tried to write using onbeforeunload and onclose window
event's but the problem iam facing is when a user
refreshes the browser staying on my domain i.e., in my
site.

But when a user leave my site iam unable to trap the
session on other sites.

Thanks in advance,
Sreedhar