<!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.strokeRect(79, 50, 70, 57);

context.strokeStyle = '#000000';
context.strokeRect(167, 49, 68, 57);

context.strokeStyle = '#000000';
context.strokeRect(250, 49, 68, 56);

context.strokeStyle = '#000000';
context.beginPath();
context.moveTo(83, 132);
context.lineTo(322, 130);
context.stroke();
context.closePath();

context.strokeStyle = '#000000';
context.beginPath();
context.moveTo(112, 109);
context.lineTo(112, 129);
context.stroke();
context.closePath();

context.strokeStyle = '#000000';
context.beginPath();
context.moveTo(199, 127);
context.lineTo(199, 107);
context.stroke();
context.closePath();

context.strokeStyle = '#000000';
context.beginPath();
context.moveTo(283, 106);
context.lineTo(284, 129);
context.stroke();
context.closePath();
</script>
</body>
</html>