title: How can I block users from accessing a section of my website at a specific time of day?
body: <p>Okay, so I have a chat feature on my website that I've mentioned in other questions.  There are some kids at my school who would love to chat during school, but I'd really rather they'd just chat during study hall so I don't get in trouble for interrupting class time.  How can I restrict user movement on my website during specific time periods during the day?  Thanks!  I don't know what type of scripting language I might need for this, but I'm assuming PHP since this is a server issue.</p>