html, body, #container {

    width: 100%;

    height: 100%;

    margin: 0;

    padding: 0;

}

var stage = acgraph.create('container');

​

var simpleEllipse = stage.ellipse();

simpleEllipse.center(acgraph.math.coordinate(150, 100));

​

// Sets radius X.

simpleEllipse.radiusX(100);

​

simpleEllipse.radiusY(50);