Treemap

<!DOCTYPE html>
<html>
<head>
<meta charset="ISO-8859-1">
<title>Insert title here</title>
<link rel="stylesheet" type="text/css" href="NewFile.css" />
<script type="text/javascript" src="https://d3js.org/d3.v2.js"></script>
<script src="https://code.jquery.com/jquery-1.7.1.js"></script> 
</head>
<body>
<p id="chart">
<script src="NewFile.js"></script>
<script>

//$( document ).ready(function() {

d3.csv("food_court_filtered.csv", function(data){
		
		// getData(data);
		
		var max =  d3.max(data, function(d) {
			return +d.Net_Sales;
		});
			
		var min =  d3.min(data, function(d) {
			return +d.Net_Sales;
		});
		
		var division   = max / 5;

// Add, remove or change the key values to change the hierarchy. 
			var nested_data = d3.nest()
					.key(function(d)  { return d.Store_Name; })
			//		.key(function(d)  { return d.Category; })
	         		.key(function(d)  { return d.Menu_Item; })
			    .entries(data);
			
		console.log(nested_data);
		// Creat the root node for the treemap
		var root = {};
		
		// Add the data to the tree
		root.key = "Food Court Data";
		root.values = nested_data;
		console.log(root);
		// Change the key names and children values from .next and add values for a chosen column to define the size of the blocks
		root = reSortRoot(root,"Net_Sales");
		console.log(root);
				
		var colorScale = d3.scale.ordinal() // d3.scale.category20c()  //	
		//.domain(data, function(d, i){return d.name })
		.domain([nested_data[0].name, nested_data[1].name, nested_data[2].name, 
		         nested_data[3].name, nested_data[4].name, nested_data[5].name,
		         nested_data[6].name, nested_data[7].name, nested_data[8].name])
		//.range(["#98abc5", "#8a89a6", "#8080ff", "#8A6A69", "#CDFBFF", "#D2B93D", "#ff8c00","#C9FF00","#FFDA00"]);
		
		.range(["#9fdbdf", "#8a89a6", "#8080ff", "#8A6A69", "#CDFBFF", "#D2B93D", "#ff8c00","#C9FF00","#FFDA00"]);
		colorcode(colorScale);
			
		loadData(root);
	});	
//});

</script>
</body>
</html>

Modified http://d3js.org/d3.v2.js to a secure url

Modified http://code.jquery.com/jquery-1.7.1.js to a secure url

https://d3js.org/d3.v2.js

https://code.jquery.com/jquery-1.7.1.js