module Sayings {
    export class Greeter {
        greeting: string;
        constructor (message: string) {
            this.greeting = message;
        }
        greet() {
            return "Hello, " + this.greeting;
        }
    }
}
var greeter = new Sayings.Greeter("world");

var button = document.createElement('button')
button.innerText = "Say Hello"
button.onclick = function() {
	alert(greeter.greet())
}

document.body.appendChild(button)
