Question

I am trying to create a similar way to Cpanel password protect directory, where a pop up comes out asking the user for a username and a password, but Cpanel way is amazing but my client doesn’t know anything on how to do that, so i wanted to create a pop up msgbox informing the visitor to enter a user name and a password, and i totaly confused on how to create it, and which programming language support similar to CPanel

Answer 1

Create .htaccess With basic authentication (running from web browser).
You must create users and password file. You may fing many maunals on web about it.
For example: http://www.elated.com/articles/password-protecting-your-pages-with-htaccess/