gistfile1.txt

// Record Object
function Record(id) {
	this.id = id;
}

Record.prototype.save = function() {
	console.log("saving record " + this.id);
}

Record.prototype.delete = function() {
	console.log("deleting record " + this.id);
}


// User Object
function User(id) {
	this.constructor(id)
};

// Inheritance
User.prototype = new Record();

// Adding method
User.prototype.test = function() {
	console.log("testing user" + this.id);
}

// Overwriting a method
User.prototype.delete = function() {
	console.log("deleting user " + this.id);
	
	// Calling a overwritten parent method
	Record.prototype.delete.call(this);
}

// Test
var aUser = new User(22);
aUser.save();
aUser.test();
console.log(aUser.id);
aUser.delete();