<!doctype html>
<html>
<head>
	<title>D3 tutorial</title>
	<!-- <script type="text/javascript" src="http://d3js.org/d3.v3.min.js"></script> -->
	<script type="text/javascript" src="/z-resources/d3.v3.min.js"></script>
</head>
<body>
	<p>Demo</p>

	<script type="text/javascript">
	d3.select("title")
	.text("Demo for Stage 13...");

	var smallData = [1, 5, 10, 55, 100, 15];
	// several layouts available which takes data and return objects, here we use pie layout

	var color = d3.scale.ordinal()
					.range(["