gistfile1.js

//generate new messages - need to append 
//just pass the name of a function you created and an interval, this is just a reference to what function you want to execute
//at the specified interval
var newMessage = setInterval(getNewMessage, 5000);

//this is the actual function that will get called and execute at the configued interval in setInterval above.
function getNewMessage() {
	console.log('get new message');
}