The administrator logon page is for teachers to use.
Teachers can log on the server and restore or delete students’
messages shown as Figure 5. Teachers need to input the user
name and password, and the server will use char. asp program
to test if the user name and password are the same with the
information stored in the database. If the user name or
password is not correct, the chkadmin.asp web page will pop
up and the visitor can not log on the server. The online
communication system will be protected from the malicious
damages through this kind of methods. If the user name and
password are correct, the homepage will display a row of
control button below the user name of each visitor who has left
messages on the website. The names of these control buttons
are reply, delete, change password, and exit. Teachers can
control all the messages left on the website.