Here is a sample of my online chat <URL SNIPPED>Live Online Chat Room For Website Discussion
You're welcome to try out my chat room and leave a message there and ask me if after you learnt from w3school and still have problem creating it
by peter_budo: Keep It On The Site - Posts must contain actual content and substance and cannot simply be external links.
What you alternately can do is just to add mibbit's iframe-chat. It uses IRC, so you have to create and register a channel on a server that supports this, but it's not hard to do. This probably doesn't require any coding at all from you.