hi, I am a CF beginner. 
I made log-in and log-out pages by using application 
and session variables to pass username and password to 
each page.  When login, set username and password to 
session variables. When logout, delete username and 
password from session variables. The problem is: 
  
1. If the users close browsers without logout, how can it
    delete session variables? 
2. I can use same username and password to login on 
    different computers at the same time. How can I 
    make it unique? 
Thanks! 
   
Redd


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