<div id="container"></div>
html, body, #container {
width: 100%;
height: 100%;
margin: 0;
padding: 0;
}
var stage = acgraph.create('container');
var simpleCircle = stage.circle(55, 55, 50);
stage.rect(120, 10, 95, 95);
// Disposes circle.
simpleCircle.dispose();