Sometimes your web pages maybe need to keep some information secret. You must want to set a password for the web page and people who know the password can view information in your web page. When you open a new web page, there will be a dialog box, asking the viewers put the right passwords. If the pass words are right, the viewers will go to your web page. If the passwords are wrong, the viewers will see the dialog box again and it asks the viewers to input password again.
