var stage = acgraph.create('container');
rectangle = new acgraph.math.Rect(10, 20, 55, 55);
acgraph.vector.primitives.roundedInnerRect(stage, rectangle, 12);
rectangle = new acgraph.math.Rect(100, 50, 75, 95);
acgraph.vector.primitives.roundedInnerRect(stage, rectangle, 10, 20, 5);
rectangle = new acgraph.math.Rect(210, 20, 75, 55);
acgraph.vector.primitives.roundedInnerRect(stage, rectangle, 10, 25, 5, 16);