Ajax Popup login and erase “Create an account”

Hi,

Please let me know how I can manage to show Ajax popup login panel when users access to “any page of the website”.

I have set the website up as “private site” and it will redirect to top page (or can change it to login page).

By default, it will redirect to WP core login page but i would like to show the theme Ajax popup instead.

Also, when users access to ajax popup, it shows “create an account” link. I would like to erase it completely OFF (NOT just erasing with CSS).

Please let me know in details.

All best,