To create a login page by using php & .htaccess /.htpasswd & mysql.

Hello! I'm using a basic http authentification .htaccess /.htpasswd. I need 4 scripts to change this authentification for a login page with non popup asking (as usualy for a basic http login). I would like to have a mysql login but of course by keeping .htacess protection directory. Script 1: It will create a table in mysql. I would have just to enter details with text editor on it (like mysql password, date base name and fields) and execute it by connecting on it from a web browser. Script 2: A login page with Username, password and validate button linked to the database. On php better for me. (No more http basic_auth = no more popup login). The script must work with encrypted password of course. Script 3: A cron script (or ligne) that will execute every 30 seconds or less a php file (script 4) that will serve to add user in the mysql table or remove them. Script 4: I need a php file that will check at everytime it is executed by cron script, the .htpasswd file located on a protected directory. This file must compare the username and password (encrypted) and add if new user/paswword is not in the databse or remove from database if user/paswword doesn't exist. My server details: Linux (Gentoo 2006.0 - 64 bits - Updated) Web : apache2 / php5 (suPHP) / ssl - Base : MySQL5 / phpMyAdmin I have root access to server.