gistfile1.txt

function Messenger() {
}

Messenger.prototype.send = function(parcel) {
	console.log("Handle auditing here");
	this._send(parcel);
};

function TextMessenger(){
	this._send = function(parcel) {
		console.log("Handle sending text message here: " + parcel);
	};
}

TextMessenger.prototype = new Messenger();

var textMessenger = new TextMessenger();

textMessenger.send("hello there");