How to pop up login & sign up form to the un logged users?

Question

I want to add a pop up box like digg and quora has, How can I show pop up box with login and sign up form to unlogged users? Any help will be appreciated, Thanks in advance!

Answer 1

if(!qa_get_logged_in_userid()){
  $notice = "not logged in"; // add login form popup here
  echo $notice;
}

Comments

I don't want to check the levels of users! I want to pop out login & sign up form side by side so that user can either make an account or login!

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See corrected answer

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Thank you @donshakespeare

is there any way to not to show this login message to the user who just logged out?