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<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<title></title>
</head>
<body>
<canvas id="can1" width="300" height="300"></canvas>
<script type="text/javascript">
var canvas = document.getElementById("can1");
var cv = canvas.getContext("2d");
cv.beginPath();
cv.arc(100, 100, 50, 0, Math.PI * 2, true);
cv.stroke();
cv.closePath();
cv.beginPath();
cv.arc(100, 100, 40, 0, Math.PI * 2, true);
cv.stroke();
cv.closePath();
cv.beginPath();
cv.moveTo(100, 60);
cv.lineTo(60, 110);
cv.lineTo(140, 110);
cv.fillStyle = "rgb(255,0,0)";
cv.fill();
cv.closePath();
cv.beginPath();
cv.moveTo(100, 140);
cv.lineTo(65, 80);
cv.lineTo(135, 80);
cv.fillStyle = "rgb(255,0,0)";
cv.fill();
cv.closePath();
cv.beginPath();
cv.moveTo(100, 60);
cv.lineTo(60, 110);
cv.lineWidth = 3;
cv.stroke();
cv.closePath();
cv.beginPath();
cv.moveTo(100, 60);
cv.lineTo(140, 110);
cv.lineWidth = 3;
cv.stroke();
cv.closePath();
cv.beginPath();
cv.moveTo(60, 110);
cv.lineTo(140, 110);
cv.lineWidth = 3;
cv.stroke();
cv.closePath();
cv.beginPath();
cv.moveTo(60, 110);
cv.lineTo(140, 110);
cv.lineWidth = 3;
cv.stroke();
cv.closePath();
cv.beginPath();
cv.moveTo(100, 140);
cv.lineTo(65, 80);
cv.lineWidth = 3;
cv.stroke();
cv.closePath();
cv.beginPath();
cv.moveTo(65, 80);
cv.lineTo(135, 80);
cv.lineWidth = 3;
cv.stroke();
cv.closePath();
cv.beginPath();
cv.moveTo(135, 80);
cv.lineTo(100, 140);
cv.lineWidth = 3;
cv.stroke();
cv.closePath();
</script>
</body>
</html>
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