Yah, your explaination is clear to me. Thanks a lot. 

==========================================
> Yes...
R> egarding u r third query.The Meta tag u mentioned is nothing to do 
with u 
r>  session.
T> he line <META HTTP-EQUIV="Refresh"CONTENT=180> tells the browser to 
r> equest the page again in 180 seconds. Some sites use this type of 
client 
p> ull to refresh a document such as stock quotes or a video camera 
pointed 
a> t a city street. 

> Let me know is it clear to u.
R> amprasad Upadhyaya

> > Hi, 

> > I don't really understand how this session works. Can somebody pls 
h> elp ? 

> > 1. In my login page, I have a session object to store the user name 
and 
p> > assword. This session object will be used in some other pages. Will 
the 
v> > alues of my session object be cleared if I press F5 or Refresh ? 

> > 2. In my web.config, I set the session time out to be 30 minutes. 
Let's 
s> > ay if I didn't do anything from the 1st minute till 28th minute and 
I 
c> > licked a button on the 29th minute. Will my page still be expired in 
t> he 
3> > 0th minute ? 

> > 3. What shall I do if I would like my session not to expire in the 
30th 
m> > inute if I do something on the 29th minute ? Can I add on the 
lifespan 
o> f 
3> > 0 minutes to my session object ? 

> > 4. Is the session time out in web.config and a Refresh metadata in a 
p> age 
w> > orks hand-in-hand for a session object ?

> > Thanks.