title: 'User is typing a message' function...?
body: <p>Just to point out I'm referring to chat systems written in PHP/jQuery where you see at the bottom 'User is typing a message...' I've tried so many methods to accomplish it but all fail, I built my own chat system written in PHP + MySQL/Ajax + jQuery.</p>
  
  <p>I'm not asking for someone to write the function for me but just to give me a little example so I can get an idea of what to do.</p>
  
  <p>I would greatly appreciate it, thanks in advance :)</p>