<!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.lineWidth = 4;

context.lineWidth = 3;

context.strokeStyle = '#000000';
context.beginPath();
context.moveTo(31, 5);
context.lineTo(70, 52);
context.stroke();
context.closePath();

context.strokeStyle = '#000000';
context.beginPath();
context.moveTo(79, 6);
context.lineTo(38, 51);
context.stroke();
context.closePath();

context.strokeStyle = '#000000';
context.beginPath();
context.moveTo(20, 25);
context.lineTo(81, 42);
context.stroke();
context.closePath();

context.strokeStyle = '#000000';
context.beginPath();
context.moveTo(88, 23);
context.lineTo(26, 43);
context.stroke();
context.closePath();
</script>
</body>
</html>