<!DOCTYPE html>

<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>Your Canvas</title>

<style type="text/css"></style>

</head>
<body>
<canvas id="imageView" width="600" height="500"></canvas>

<script type="text/javascript">
var canvas, context, canvaso, contexto;
canvaso = document.getElementById('imageView');
context = canvaso.getContext('2d');
context.lineWidth = 5;

context.strokeStyle = '#000000';
context.beginPath();
context.moveTo(211, 157);
context.lineTo(211, 281);
context.stroke();
context.closePath();

context.strokeStyle = '#000000';
context.beginPath();
context.moveTo(212, 281);
context.lineTo(303, 218);
context.stroke();
context.closePath();

context.strokeStyle = '#000000';
context.beginPath();
context.moveTo(303, 218);
context.lineTo(209, 161);
context.stroke();
context.closePath();
</script>
</body>
</html>