<!DOCTYPE html>

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

<style type="text/css"><!--
#container { position: relative; }
#imageTemp { position: absolute; top: 1px; left: 1px; }
--></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(0, 0);
context.lineTo(0, 498);
context.stroke();
context.closePath();

context.lineWidth = 6;

context.lineWidth = 7;

context.lineWidth = 8;

context.lineWidth = 9;

context.lineWidth = 10;

context.lineWidth = 11;

context.lineWidth = 12;

context.lineWidth = 13;

context.lineWidth = 14;

context.lineWidth = 13;

context.lineWidth = 12;

context.lineWidth = 11;

context.lineWidth = 10;

context.lineWidth = 9;

context.lineWidth = 8;

context.lineWidth = 7;

context.lineWidth = 6;

context.lineWidth = 5;

context.strokeStyle = '#000000';
context.beginPath();
context.moveTo(2, 0);
context.lineTo(257, 253);
context.stroke();
context.closePath();

context.strokeStyle = '#000000';
context.beginPath();
context.moveTo(1, 498);
context.lineTo(257, 250);
context.stroke();
context.closePath();

context.strokeStyle = '#000000';
context.beginPath();
context.moveTo(16, 0);
context.lineTo(262, 245);
context.stroke();
context.closePath();

context.strokeStyle = '#000000';
context.beginPath();
context.moveTo(262, 245);
context.lineTo(490, 2);
context.stroke();
context.closePath();

context.strokeStyle = '#000000';
context.beginPath();
context.moveTo(490, 2);
context.lineTo(19, 1);
context.stroke();
context.closePath();

context.strokeStyle = '#000000';
context.beginPath();
context.moveTo(259, 261);
context.lineTo(12, 498);
context.stroke();
context.closePath();

context.strokeStyle = '#000000';
context.beginPath();
context.moveTo(12, 498);
context.lineTo(470, 498);
context.stroke();
context.closePath();

context.strokeStyle = '#000000';
context.beginPath();
context.moveTo(471, 498);
context.lineTo(258, 260);
context.stroke();
context.closePath();

context.strokeStyle = '#000000';
context.beginPath();
context.moveTo(488, 14);
context.lineTo(478, 496);
context.stroke();
context.closePath();

context.strokeStyle = '#000000';
context.beginPath();
context.moveTo(478, 496);
context.lineTo(264, 254);
context.stroke();
context.closePath();

context.strokeStyle = '#000000';
context.beginPath();
context.moveTo(264, 254);
context.lineTo(490, 15);
context.stroke();
context.closePath();
</script>
</body>
</html>