To visit for the information, user need to log-in by using "User Name" and "Password"

In the home page, we are giving a link to other pages.

<a href="home/pop_up.asp" target="_blank">Pop Up</a>.

So, if i use the pop_up, then new will open. If i close the pop-up page, I can use the site for other information.

Is there any problem, for the login session.

Because, log-in session is going to be expired prematuredly.