I have heard that you can build a chat for a website that would display the username, etc, using PHP, Javascript, and AJAX. So Im wondering how this can be done and if there are any tutorials on how to do it, or tutorials on AJAX. Thank you.

There are a couple different ways you could do this using PHP. You could save the things people say in a text file, or in a mysql database, and then have the page refresh every so often to update what is being said. In the cpanel there is a phpmychatroom that you can use. If you want to develop something you can pm me and ill help you along with the PHP. I don't know anything about AJAX, but you can probably google it and find a good tutorial.

Here are some links to ajax chats, although I been hearing soem bad stuff about it can't give specifics but their around.

http://www.plasticshore.com/logfile/entry/legacy_483
http://socket7.net/lace/
http://www.linuxuser.at/index.php?title=Mo..._Ajax_Chat_Ever

PHP Chat links

http://www.pixel2life.com/tutorials/php_coding/chat_scripts/