This app asks for the user's name and an amount in American dollars that they want to convert into other currencies. The app then converts the dollar amount into European euros, Japanese yen and Canadian dollars.
The onEvent() in this app works without a button that gets clicked. The onEvent() line is:
onEvent("txtDollars", "change", function()
So the app runs when the user enters an amount into 'txtDollars' and then clicks outside of that Text Input box.
The video shows what a completed app should do.