if(parent.document.getElementsByTagName("iframe")[0]) {
	parent.document.getElementsByTagName("iframe")[0].setAttribute('style', 'height: 800px !important');
}

var margin = {top: 20, right: 0, bottom: 25, left: 0},
	width = 1420, // 1420
	height = 750 - margin.bottom, //775
    formatNumber = d3.format(".2s"),
    transitioning,
    headerHeight = 20,
    headerColor = "#555555";

var x = d3.scale.linear()
		  .domain([0, width])
		  .range([0, width]);

var y = d3.scale.linear()
		  .domain([0, height])
          .range([0, height]);

// Create a Tree Layout
var treemap = d3.layout.treemap()
//.ratio(height / width * 0.5 * (1 + Math.sqrt(1)))
.round(false)
.children(function(d, depth) { return depth ? null : d.children; })
//.children(function(d) { return d.children; }) //depth ? null : d.children; })
.sort(function(a, b) { return a.value - b.value; });

// Create the image container / canvas 
var svg = d3.select("#chart")
.append("svg")
.attr("width", width ) //+ margin.left + margin.right)
.attr("height", height + margin.bottom + margin.top)
.style("margin-left", -margin.left + "px")
//.style("margin.right", -margin.right + "px")
.append("g")
.attr("transform", "translate(" + margin.left + "," + margin.top + ")")
.style("shape-rendering", "crispEdges")

var data_colorScale;

function colorcode(colorScale) {
	data_colorScale = colorScale;
}

// variable to display tooltip
var div = d3.select("body").append("div")   
.attr("class", "tooltip")               
.style("opacity", 0);

// Append header container in the svg container 
var grandparent = svg.append("g")
					.attr("class", "grandparent");

// Create header area
grandparent.append("rect")
			.attr("y", -margin.top)
			.attr("width", width)
			.attr("height", margin.top);

// Add Header Text 
grandparent.append("text")
			.attr("x", 6)
			.attr("y", 6 - margin.top)
			.attr("dy", ".75em");

// Initialize the root node dimensions
function initialize(root) {
	root.x = root.y = 0;
	root.dx = width;
	root.dy = height;
	root.depth = 0;
}

//Aggregate the values for internal nodes. This is normally done by the
//treemap layout, but not here because of the custom implementation.
function accumulate(d) {
	return d.children
	? d.value = d.children.reduce(function(p, v) { return p + accumulate(v); }, 0)
	: d.value;
}

// Creates the layout 
// Defines how the nodes needs to be displayed in the svg
function layout(d) {
	if (d.children) {
		treemap.nodes({children: d.children});
		d.children.forEach(function(c) {
			c.x = d.x + c.x * d.dx;
			c.y = d.y + c.y * d.dy;
			c.dx *= d.dx;
			c.dy *= d.dy;
			c.parent = d;
			layout(c);
		});
	}
}

/* display shows the treemap and writes the embedded transition function */
function display(d) {
	
	var legend = svg.selectAll(".legend")
	.data(data_colorScale.domain().slice())
	.enter()
	.append("g")
	.attr("class", "legend")
//			.attr("transform", function (d, i) { return "translate(0," + i * 20 + ")"; });
	.attr("transform", function (d, i) { return "translate(" + i * 150 + ",0)"; });
	
// create grandparent bar at top 
	grandparent
		.datum(d.parent)
		.on("click", transition)
		.select("text")
		.text(name(d));

	var g1 = svg.insert("g", ".grandparent");
		//.datum(d)
		//.attr("class", "depth");
	
// add in data 
	var g = g1.selectAll("g") //g1
		.data(d.children)
		.enter()
			.append("g");
	

// write parent rectangle 
	g.append("rect")
		.attr("class", "parent")
		// Call the rectangle function to assign dimensions to the rectangle
		.call(rect);
	//	.attr("fill", function(d) {  return data_colorScale(d.value)});
/*
		.append("title")
		.text(function(d) { return d.name + " " + formatNumber(d.value); });
*/
	legend.append("rect")
			.attr("x", 0)
			.attr("y", height + 5)
			.attr("width", 180)
			.attr("height", 100)
			.style("fill", data_colorScale);
	
	legend.append("text")
	.attr("x", 125)
	.attr("y", height)  
	.attr("dy", "1.80em")
    .attr("stroke","black")
	.style("text-anchor", "end")
	.text(function (d){ return d; });


	//getDepth(d);

// write children rectangles 
    var k =	g.selectAll(".child")
					.data(function(d) { return d.children || [d]; })
						//.data(function(d) { return d; })
						.enter();
    	
		k.append("rect")
		 .attr("class", "child")  // Highlights the children	
		 .call(rect) 			  // Call the rectangle function to assign dimensions to the rectangle
		 .append("title")
		 .text(function(d) { return d.name + "-" + formatNumber(d.value); }); /*should be d.value*/
		
// Add text	    
//		k.append("text")
//		 .call(text);
		
		k.append("foreignObject")
			.call(rect)
			.attr("class","foreignobj")
			.append("xhtml:div") 
			.html(function(d) { return d.name; }) 	// Display Child name 
	// Assign style to the added text
	//		.attr("class","textdiv"); //textdiv class allows us to style the text easily with CSS
			.attr("class", function(d) {
				if ((d.dy <= 25 && d.dx <= 25) || 
					(d.dy <= 25 && d.dx > 25)  ||
					(d.dy > 25 && d.dx <= 25)	
				    ) {
					return "textdiv_xs";
				}
				if ((d.dy > 25  && d.dy <=50) && (d.dx > 25 && d.dx <=50) || 
					(d.dy > 50  && d.dy <=75) && (d.dx > 50 && d.dx <=75) // ||
		//			((d.dy > 25 && d.dy <=50) && d.dx >25)                ||
		//			(d.dy > 25  &&(d.dx > 25 && d.dx <=50))
				    )  {
					return "textdiv_s";
				}
				if (((d.dy > 25 && d.dy <=50) && d.dx >25)                ||
					(d.dy > 25  &&(d.dx > 25 && d.dx <=50))				  ||
				//	(d.dy > 50  && d.dy <=75) && (d.dx > 50 && d.dx <=75) || 
				    ((d.dy > 50 && d.dy <=75) && d.dx >50)                ||
					(d.dy > 50  &&(d.dx > 50 && d.dx <=75))
					 )  {
					return "textdiv_s";
				} 
				if ((d.dy > 75 && d.dy <=100) && (d.dx > 75 && d.dx <=100) || 
					((d.dy > 75 && d.dy <=100) && d.dx >75)                ||
					(d.dy > 75 && (d.dx > 75 && d.dx <=100))
					)  {
					return "textdiv_m";
				} 
				if (d.dy > 100 && d.dx > 100 || d.dy < 100 && d.dx > 100 || d.dy > 100 && d.dx < 100) {
					return "textdiv";
				} 
			});


// transition on child click 
	g.filter(function(d) { return d.children; })
		.classed("children", true)
		.on("click", transition);

// create transition function for transitions 
	function transition(d) {
		if (transitioning || !d) return;
	//	if ( !d ) return;
		transitioning = true;
		var g2 = display(d);
			t1 = g1.transition().duration(750),
		    t2 = g2.transition().duration(500);
// Update the domain only after entering new elements.
		x.domain([d.x, d.x + d.dx]);
		y.domain([d.y, d.y + d.dy]);

// Transition to the new view.
		g2.selectAll("rect").call(rect);
		g2.append("foreignObject")
			.call(rect)
			.attr("class","foreignobj")
			.append("xhtml:div") 
			.html(function(d) { 
					if (d.children) {return d.name;}
				//	if (d.parent) {return null;} 
			}) ;
		g2.selectAll(".foreignobj").call(foreign);	

		// Remove the old node when the transition is finished.
		t1.remove().each("end", function() {
			svg.style("shape-rendering", "crispEdges");
			transitioning = false;
		}); 
	}//endfunc transition

	return g;
}//endfunc display

// This function defines the placements of text within each parent/child 
function text(text) {
	text.attr("x", function(d) { return x(d.x) + 6; })
	    .attr("y", function(d) {
			if (d.dy <= 8) {
				return y(d.y) - 9;
			}
			if (d.dy > 8 && d.dy <= 13) {
				return y(d.y) - 10;
			}
			if (d.dy > 13) {
				return y(d.y) - 8;
			}
	    })
	    .attr("dy", "1.7em")
		.attr("stroke","black")
		.style("text-anchor", "center")
	//	.attr("class","textdiv")
	//    .text("Test 01");
		.attr("font-size", function(d) {
			if (d.dy <= 13 && d.dx <= 50) {
				return 5;
			}
			if (d.dy <= 13 && d.dx <= 70) {
				return 6;
			}
			if (d.dy <= 50 && d.dx <= 50) {
				return 7;
			}
			if (d.dy <= 75 && d.dx <= 75) {
				return 9;
			}
			if (d.dy <= 100 && d.dx <= 100) {
				return 10;
			}
			if (d.dy <= 150 && d.dx <= 150) {
				return 12;
			}
			if (d.dy > 150 && d.dx > 150) {
				return 14;
			}
		})
		.text(function(d) { return d.name; });//to display the name

}

//This function defines the placements of text within each parent/child 
function text_2(text) {
	text.attr("x", function(d) { return x(d.x) + 6; })
	    .attr("y", function(d) { return y(d.y) + 6; });
//	    .text(function(d) { return d.name; });
}

//This function defines the placements of rectangles for each parent/child 
function rect(rect) {
	rect.attr("x", function(d) { return x(d.x); })
 		.attr("y", function(d) { return y(d.y); })
		.attr("width", function(d) { return x(d.x + d.dx)  - x(d.x); })
		.attr("height", function(d) { return y(d.y + d.dy) - y(d.y); })
	//    .attr("fill", function(d) {  return data_colorScale(d.name)})
		.style("fill", function(d) { 
            return d.children ? data_colorScale(d.parent.name) : "green"; 
          })
		.attr("stroke","white");

}

//This function defines the placements of rectangles for each parent/child 
function rect_transition(rect) {
	rect.attr("x", function(d) { return x(d.x); })
 		.attr("y", function(d) { return y(d.y); })
		.attr("width", function(d) { return x(d.x + d.dx)  - x(d.x); })
		.attr("height", function(d) { return y(d.y + d.dy) - y(d.y); })
        .style("fill", function(d) { 
            return d.children ? data_colorScale(d.parent.name) : "green"  ; 
        	})
		.attr("stroke","white");
}


function foreign(foreign){ /* added */
	foreign.attr("x", function(d) { return x(d.x); })
		.attr("y", function(d) { return y(d.y); })
		.attr("width", function(d) { return x(d.x + d.dx) - x(d.x); })
		.attr("height", function(d) { return y(d.y + d.dy) - y(d.y); });
}

// This function is used to prepare the text at the header of the treemap
function name(d) {
	return d.parent ? name(d.parent) + "." + d.name : d.name;
}

function loadData(root) {
	initialize(root);
	accumulate(root);
	layout(root);
	display(root);
}