Changes

1. Make a video element display fullscreen when clicked and leave fullscreen when it ends.

onclick="window.requestFullScreenDisableKeys(event.target)"

2. Make a canvas element display fullscreen in response to user input. Resize the canvas to the appropriate resolution while it's fullscreen.

function redrawCanvas(c) { ... }

function resizeCanvas() {

redrawCanvas(c);

}

Go Fullscreen!

3. Hide advertisements while the window is fullscreen.