Hi - My site sets a session cookie for use when in mydomain.com.  However 
for reasons too complicated to go in to here, I need to delete or update the 
cookie immediately upon someone surfing away from my site - even if its just 
for a second or two.

For instance say you are on mysite.com and then you type in www.google.com 
into your browser. At that point I need to delete/update that cookie so that 
if you come back to my domain that session level cookie is not present.

In the OnUnload event is there any way to know where a user is going, or any 
trick that can at least tell me if the browser is leaving my domain?  It 
doesn't matter at all what the destination is and I don't need to know that. 
I just need a way to gauge in the OnUnload event whether the user is leaving 
my domain so I can take care of this.

--- Mike