Auto-login phpMyAdmin

We want to auto login users in phpMyAdmin. Now we have a web-interface, written in PHP. Users can login. After logging in, they can click on the SQL link in the menu that opens phpMyAdmin. Is there a way to log them in automatically? Is it possible to set cookies for phpMyAdmin or something to let them use it? We don't want to turn off phpMyAdmin's login; each user has his own MySQL user/pass combination. So we need to pass the username/password settings to phpMyAdmin.