<script type="text/javascript">
//<![CDATA[

canvas = new Canvas;

canvas.pen.color = "#f00";
canvas.rectangle(30, 20, 20, 20);
canvas.pen.color = "#080";
canvas.rectangle(35, 25, 10, 10);
canvas.pen.color = "#008";
canvas.arc(50, 30, 10, 180, 270);
canvas.arc(30, 30, 10, 0, 270);
canvas.pen.color = "#ff0";

//]]>
</script>