Cleaned up whitespace, braces and strings.

jquery.flot.pie.js

 /*
-Flot plugin for rendering pie charts. The plugin assumes the data is 
-coming is as a single data value for each series, and each of those 
-values is a positive value or zero (negative numbers don't make 
-any sense and will cause strange effects). The data values do 
-NOT need to be passed in as percentage values because it 
-internally calculates the total and percentages.
+Flot plugin for rendering pie charts.
+
+Copyright (c) 2007-2012 IOLA and Ole Laursen.
+Licensed under the MIT license.
+
+The plugin assumes that each series has a single data value, and that
+each value is a positive integer or zero.  Negative numbers don't make
+sense for a pie chart, and have unpredictable results.  The values do
+NOT need to be passed in as percentages; the plugin will calculate the
+total and per-slice percentages internally.
 
 * Created by Brian Medendorp, June 2009
 * Updated November 2009 with contributions from: btburnett3, Anthony Aragues and Xavi Ivars
@@ -15,7 +19,6 @@ internally calculates the total and percentages.
 	2009-11-11: Added basic hover from btburnett3 - does not work in IE, and center is off in Chrome and Opera
 	2009-11-17: Added IE hover capability submitted by Anthony Aragues
 	2009-11-18: Added bug fix submitted by Xavi Ivars (issues with arrays when other JS libraries are included as well)
-		
 
 Available options are:
 series: {
@@ -58,10 +61,10 @@ More detail and specific examples can be found in the included HTML file.
 
 */
 
-(function ($) 
-{
-	function init(plot) // this is the "body" of the plugin
-	{
+(function ($) {
+
+	function init(plot) {
+
 		var canvas = null;
 		var canvasWidth = 0;
 		var canvasHeight = 0;
@@ -76,301 +79,313 @@ More detail and specific examples can be found in the included HTML file.
 		var legendWidth = 0;
 		var processed = false;
 		var raw = false;
-		
-		// interactive variables	
-		var highlights = [];	
-	
+
+		// interactive variables
+
+		var highlights = [];
+
 		// add hook to determine if pie plugin in enabled, and then perform necessary operations
+
 		plot.hooks.processOptions.push(checkPieEnabled);
-		plot.hooks.bindEvents.push(bindEvents);	
+		plot.hooks.bindEvents.push(bindEvents);
 
 		// check to see if the pie plugin is enabled
-		function checkPieEnabled(plot, options)
-		{
-			if (options.series.pie.show)
-			{
+
+		function checkPieEnabled(plot, options) {
+			if (options.series.pie.show) {
+
 				//disable grid
+
 				options.grid.show = false;
-				
+
 				// set labels.show
-				if (options.series.pie.label.show=='auto')
-					if (options.legend.show)
+
+				if (options.series.pie.label.show == "auto") {
+					if (options.legend.show) {
 						options.series.pie.label.show = false;
-					else
+					} else {
 						options.series.pie.label.show = true;
-				
+					}
+				}
+
 				// set radius
-				if (options.series.pie.radius=='auto')
-					if (options.series.pie.label.show)
+
+				if (options.series.pie.radius == "auto") {
+					if (options.series.pie.label.show) {
 						options.series.pie.radius = 3/4;
-					else
+					} else {
 						options.series.pie.radius = 1;
-						
+					}
+				}
+
 				// ensure sane tilt
-				if (options.series.pie.tilt>1)
-					options.series.pie.tilt=1;
-				if (options.series.pie.tilt<0)
-					options.series.pie.tilt=0;
-			
+
+				if (options.series.pie.tilt > 1) {
+					options.series.pie.tilt = 1;
+				} else if (options.series.pie.tilt < 0) {
+					options.series.pie.tilt = 0;
+				}
+
 				// add processData hook to do transformations on the data
+
 				plot.hooks.processDatapoints.push(processDatapoints);
-				plot.hooks.drawOverlay.push(drawOverlay);	
-				
-				// add draw hook
+				plot.hooks.drawOverlay.push(drawOverlay);
+
+				//  draw hook
+
 				plot.hooks.draw.push(draw);
 			}
 		}
-	
+
 		// bind hoverable events
-		function bindEvents(plot, eventHolder) 		
-		{		
+
+		function bindEvents(plot, eventHolder) {
 			var options = plot.getOptions();
-			
-			if (options.series.pie.show && options.grid.hoverable)
-				eventHolder.unbind('mousemove').mousemove(onMouseMove);
-				
-			if (options.series.pie.show && options.grid.clickable)
-				eventHolder.unbind('click').click(onClick);
-		}	
-		
+			if (options.series.pie.show) {
+				if (options.grid.hoverable) {
+					eventHolder.unbind("mousemove").mousemove(onMouseMove);
+				}
+				if (options.grid.clickable) {
+					eventHolder.unbind("click").click(onClick);
+				}
+			}
+		}
 
 		// debugging function that prints out an object
-		function alertObject(obj)
-		{
-			var msg = '';
-			function traverse(obj, depth)
-			{
-				if (!depth)
+
+		function alertObject(obj) {
+
+			var msg = "";
+
+			function traverse(obj, depth) {
+
+				if (!depth) {
 					depth = 0;
+				}
+
 				for (var i = 0; i < obj.length; ++i)
 				{
-					for (var j=0; j<depth; j++)
-						msg += '\t';
-				
-					if( typeof obj[i] == "object")
-					{	// its an object
-						msg += ''+i+':\n';
-						traverse(obj[i], depth+1);
+					for (var j = 0; j < depth; j++) {
+						msg += "\t";
 					}
-					else
-					{	// its a value
-						msg += ''+i+': '+obj[i]+'\n';
+
+					if( typeof obj[i] == "object") {
+						msg += "" + i + ":\n";
+						traverse(obj[i], depth + 1);
+					} else {
+						msg += "" + i + ": " + obj[i] + "\n";
 					}
 				}
 			}
+
 			traverse(obj);
 			alert(msg);
 		}
-		
-		function calcTotal(data)
-		{
-			for (var i = 0; i < data.length; ++i)
-			{
+
+		function calcTotal(data) {
+			for (var i = 0; i < data.length; ++i) {
 				var item = parseFloat(data[i].data[0][1]);
-				if (item)
+				if (item) {
 					total += item;
+				}
 			}
-		}	
-		
-		function processDatapoints(plot, series, data, datapoints) 
-		{	
-			if (!processed)
-			{
-				processed = true;
+		}
 
+		function processDatapoints(plot, series, data, datapoints) {
+			if (!processed)	{
+				processed = true;
 				canvas = plot.getCanvas();
 				target = $(canvas).parent();
 				options = plot.getOptions();
-
-                                canvasWidth = plot.getPlaceholder().width();
-                                canvasHeight = plot.getPlaceholder().height();
-
+				canvasWidth = plot.getPlaceholder().width();
+				canvasHeight = plot.getPlaceholder().height();
 				plot.setData(combine(plot.getData()));
 			}
 		}
-		
-		function setupPie()
-		{
-			legendWidth = target.children().filter('.legend').children().width() || 0;
-		
+
+		function setupPie() {
+
+			legendWidth = target.children().filter(".legend").children().width() || 0;
+
 			// calculate maximum radius and center point
-			maxRadius =  Math.min(canvasWidth,(canvasHeight/options.series.pie.tilt))/2;
-			centerTop = (canvasHeight/2)+options.series.pie.offset.top;
-			centerLeft = (canvasWidth/2);
-			
-			if (options.series.pie.offset.left=='auto')
-				if (options.legend.position.match('w'))
-					centerLeft += legendWidth/2;
-				else
-					centerLeft -= legendWidth/2;
-			else
+
+			maxRadius =  Math.min(canvasWidth, canvasHeight / options.series.pie.tilt) / 2;
+			centerTop = canvasHeight / 2 + options.series.pie.offset.top;
+			centerLeft = canvasWidth / 2;
+
+			if (options.series.pie.offset.left == "auto") {
+				if (options.legend.position.match("w")) {
+					centerLeft += legendWidth / 2;
+				} else {
+					centerLeft -= legendWidth / 2;
+				}
+			} else {
 				centerLeft += options.series.pie.offset.left;
-					
-			if (centerLeft<maxRadius)
+			}
+
+			if (centerLeft < maxRadius) {
 				centerLeft = maxRadius;
-			else if (centerLeft>canvasWidth-maxRadius)
-				centerLeft = canvasWidth-maxRadius;
+			} else if (centerLeft > canvasWidth - maxRadius) {
+				centerLeft = canvasWidth - maxRadius;
+			}
 		}
-		
-		function fixData(data)
-		{
-			for (var i = 0; i < data.length; ++i)
-			{
-				if (typeof(data[i].data)=='number')
-					data[i].data = [[1,data[i].data]];
-				else if (typeof(data[i].data)=='undefined' || typeof(data[i].data[0])=='undefined')
-				{
-					if (typeof(data[i].data)!='undefined' && typeof(data[i].data.label)!='undefined')
+
+		function fixData(data) {
+			for (var i = 0; i < data.length; ++i) {
+				if (typeof(data[i].data) == "number") {
+					data[i].data = [[1, data[i].data]];
+				} else if (typeof(data[i].data) == "undefined" || typeof(data[i].data[0]) == "undefined") {
+					if (typeof(data[i].data) != "undefined" && typeof(data[i].data.label) != "undefined") {
 						data[i].label = data[i].data.label; // fix weirdness coming from flot
-					data[i].data = [[1,0]];
-					
+					}
+					data[i].data = [[1, 0]];
 				}
 			}
 			return data;
 		}
-		
-		function combine(data)
-		{
+
+		function combine(data) {
+
 			data = fixData(data);
 			calcTotal(data);
+
 			var combined = 0;
 			var numCombined = 0;
 			var color = options.series.pie.combine.color;
-			
 			var newdata = [];
-			for (var i = 0; i < data.length; ++i)
-			{
+
+			for (var i = 0; i < data.length; ++i) {
+
 				// make sure its a number
+
 				data[i].data[0][1] = parseFloat(data[i].data[0][1]);
-				if (!data[i].data[0][1])
+
+				if (!data[i].data[0][1]) {
 					data[i].data[0][1] = 0;
-					
-				if (data[i].data[0][1]/total<=options.series.pie.combine.threshold)
-				{
+				}
+
+				if (data[i].data[0][1] / total <= options.series.pie.combine.threshold) {
 					combined += data[i].data[0][1];
 					numCombined++;
-					if (!color)
+					if (!color) {
 						color = data[i].color;
-				}				
-				else
-				{
+					}
+				} else {
 					newdata.push({
-						data: [[1,data[i].data[0][1]]], 
-						color: data[i].color, 
+						data: [[1, data[i].data[0][1]]],
+						color: data[i].color,
 						label: data[i].label,
-						angle: (data[i].data[0][1]*(Math.PI*2))/total,
-						percent: (data[i].data[0][1]/total*100)
+						angle: data[i].data[0][1] * Math.PI * 2 / total,
+						percent: data[i].data[0][1] / total * 100
 					});
 				}
 			}
-			if (numCombined>0)
+
+			if (numCombined > 0) {
 				newdata.push({
-					data: [[1,combined]], 
-					color: color, 
+					data: [[1, combined]],
+					color: color,
 					label: options.series.pie.combine.label,
-					angle: (combined*(Math.PI*2))/total,
-					percent: (combined/total*100)
+					angle: combined * Math.PI * 2 / total,
+					percent: combined / total * 100
 				});
+
 			return newdata;
-		}		
-		
-		function draw(plot, newCtx)
-		{
-			if (!target) return; // if no series were passed
+		}
+
+		function draw(plot, newCtx) {
+
+			if (!target) {
+				return; // if no series were passed
+			}
+
 			ctx = newCtx;
-		
 			setupPie();
+
 			var slices = plot.getData();
-		
 			var attempts = 0;
-			while (redraw && attempts<redrawAttempts)
-			{
+
+			while (redraw && attempts<redrawAttempts) {
 				redraw = false;
-				if (attempts>0)
+				if (attempts > 0) {
 					maxRadius *= shrink;
+				}
 				attempts += 1;
 				clear();
-				if (options.series.pie.tilt<=0.8)
+				if (options.series.pie.tilt <= 0.8) {
 					drawShadow();
+				}
 				drawPie();
 			}
+
 			if (attempts >= redrawAttempts) {
 				clear();
-				target.prepend('<div class="error">Could not draw pie with labels contained inside canvas</div>');
+				target.prepend("<div class='error'>Could not draw pie with labels contained inside canvas</div>");
 			}
-			
-			if ( plot.setSeries && plot.insertLegend )
-			{
+
+			if (plot.setSeries && plot.insertLegend) {
 				plot.setSeries(slices);
 				plot.insertLegend();
 			}
-			
+
 			// we're actually done at this point, just defining internal functions at this point
-			
-			function clear()
-			{
-				ctx.clearRect(0,0,canvasWidth,canvasHeight);
-				target.children().filter('.pieLabel, .pieLabelBackground').remove();
+
+			function clear() {
+				ctx.clearRect(0, 0, canvasWidth, canvasHeight);
+				target.children().filter(".pieLabel, .pieLabelBackground").remove();
 			}
-			
-			function drawShadow()
-			{
+
+			function drawShadow() {
+
 				var shadowLeft = options.series.pie.shadow.left;
 				var shadowTop = options.series.pie.shadow.top;
 				var edge = 10;
 				var alpha = options.series.pie.shadow.alpha;
-			
-				// set radius
-				if (options.series.pie.radius>1)
-					var radius = options.series.pie.radius;
-				else
-					var radius = maxRadius * options.series.pie.radius;
-					
-				if (radius>=(canvasWidth/2)-shadowLeft || radius*options.series.pie.tilt>=(canvasHeight/2)-shadowTop || radius<=edge)
+				var radius = options.series.pie.radius > 1 ? options.series.pie.radius : maxRadius * options.series.pie.radius;
+
+				if (radius >= canvasWidth / 2 - shadowLeft || radius * options.series.pie.tilt >= canvasHeight / 2 - shadowTop || radius <= edge) {
 					return;	// shadow would be outside canvas, so don't draw it
-			
+				}
+
 				ctx.save();
 				ctx.translate(shadowLeft,shadowTop);
 				ctx.globalAlpha = alpha;
-				ctx.fillStyle = '#000';
+				ctx.fillStyle = "#000";
 
 				// center and rotate to starting position
+
 				ctx.translate(centerLeft,centerTop);
 				ctx.scale(1, options.series.pie.tilt);
-				
+
 				//radius -= edge;
-				for (var i=1; i<=edge; i++)
-				{
+
+				for (var i = 1; i <= edge; i++) {
 					ctx.beginPath();
-					ctx.arc(0,0,radius,0,Math.PI*2,false);
+					ctx.arc(0, 0, radius, 0, Math.PI * 2, false);
 					ctx.fill();
 					radius -= i;
-				}	
-				
+				}
+
 				ctx.restore();
 			}
-			
-			function drawPie()
-			{
-				var startAngle = Math.PI * options.series.pie.startAngle;
-				var radius;
 
-				// set radius
-				if (options.series.pie.radius > 1)
-					radius = options.series.pie.radius;
-				else radius = maxRadius * options.series.pie.radius;
+			function drawPie() {
+
+				var startAngle = Math.PI * options.series.pie.startAngle;
+				var radius = options.series.pie.radius > 1 ? options.series.pie.radius : maxRadius * options.series.pie.radius;
 
 				// center and rotate to starting position
+
 				ctx.save();
 				ctx.translate(centerLeft,centerTop);
 				ctx.scale(1, options.series.pie.tilt);
 				//ctx.rotate(startAngle); // start at top; -- This doesn't work properly in Opera
 
 				// draw slices
+
 				ctx.save();
 				var currentAngle = startAngle;
-				for (var i = 0; i < slices.length; ++i)
-				{
+				for (var i = 0; i < slices.length; ++i) {
 					slices[i].startAngle = currentAngle;
 					drawSlice(slices[i].angle, slices[i].color, true);
 				}
@@ -382,286 +397,313 @@ More detail and specific examples can be found in the included HTML file.
 					ctx.save();
 					ctx.lineWidth = options.series.pie.stroke.width;
 					currentAngle = startAngle;
-					for (var i = 0; i < slices.length; ++i)
+					for (var i = 0; i < slices.length; ++i) {
 						drawSlice(slices[i].angle, options.series.pie.stroke.color, false);
+					}
 					ctx.restore();
 				}
 
 				// draw donut hole
+
 				drawDonutHole(ctx);
 
 				// draw labels
-				if (options.series.pie.label.show)
+
+				if (options.series.pie.label.show) {
 					drawLabels();
+				}
 
 				// restore to original state
 				ctx.restore();
 
-				function drawSlice(angle, color, fill)
-				{	
-					if (angle <= 0 || isNaN(angle))
+				function drawSlice(angle, color, fill) {
+
+					if (angle <= 0 || isNaN(angle)) {
 						return;
-				
-					if (fill)
+					}
+
+					if (fill) {
 						ctx.fillStyle = color;
-					else
-					{
+					} else {
 						ctx.strokeStyle = color;
-						ctx.lineJoin = 'round';
+						ctx.lineJoin = "round";
 					}
-						
+
 					ctx.beginPath();
-					if (Math.abs(angle - Math.PI*2) > 0.000000001)
-						ctx.moveTo(0,0); // Center of the pie
-					else if ($.browser.msie)
+					if (Math.abs(angle - Math.PI * 2) > 0.000000001) {
+						ctx.moveTo(0, 0); // Center of the pie
+					} else if ($.browser.msie) {
 						angle -= 0.0001;
-					//ctx.arc(0,0,radius,0,angle,false); // This doesn't work properly in Opera
-					ctx.arc(0,0,radius,currentAngle,currentAngle+angle,false);
+					}
+
+					//ctx.arc(0, 0, radius, 0, angle, false); // This doesn't work properly in Opera
+					ctx.arc(0, 0, radius,currentAngle, currentAngle + angle, false);
 					ctx.closePath();
 					//ctx.rotate(angle); // This doesn't work properly in Opera
 					currentAngle += angle;
-					
-					if (fill)
+
+					if (fill) {
 						ctx.fill();
-					else
+					} else {
 						ctx.stroke();
+					}
 				}
-				
-				function drawLabels()
-				{
+
+				function drawLabels() {
+
 					var currentAngle = startAngle;
-					
-					// set radius
-					if (options.series.pie.label.radius>1)
-						var radius = options.series.pie.label.radius;
-					else
-						var radius = maxRadius * options.series.pie.label.radius;
-					
-					for (var i = 0; i < slices.length; ++i)
-					{
-						if (slices[i].percent >= options.series.pie.label.threshold*100)
+					var radius = options.series.pie.label.radius > 1 ? options.series.pie.label.radius : maxRadius * options.series.pie.label.radius;
+
+					for (var i = 0; i < slices.length; ++i) {
+						if (slices[i].percent >= options.series.pie.label.threshold * 100) {
 							drawLabel(slices[i], currentAngle, i);
+						}
 						currentAngle += slices[i].angle;
 					}
-					
-					function drawLabel(slice, startAngle, index)
-					{
-						if (slice.data[0][1]==0)
+
+					function drawLabel(slice, startAngle, index) {
+						if (slice.data[0][1] == 0) {
 							return;
-							
+						}
+
 						// format label text
+
 						var lf = options.legend.labelFormatter, text, plf = options.series.pie.label.formatter;
-						if (lf)
+
+						if (lf) {
 							text = lf(slice.label, slice);
-						else
+						} else {
 							text = slice.label;
-						if (plf)
+						}
+
+						if (plf) {
 							text = plf(text, slice);
-							
-						var halfAngle = ((startAngle+slice.angle) + startAngle)/2;
+						}
+
+						var halfAngle = ((startAngle + slice.angle) + startAngle) / 2;
 						var x = centerLeft + Math.round(Math.cos(halfAngle) * radius);
 						var y = centerTop + Math.round(Math.sin(halfAngle) * radius) * options.series.pie.tilt;
-						
-						var html = '<span class="pieLabel" id="pieLabel'+index+'" style="position:absolute;top:' + y + 'px;left:' + x + 'px;">' + text + "</span>";
+
+						var html = "<span class='pieLabel' id='pieLabel" + index + "' style='position:absolute;top:" + y + "px;left:" + x + "px;'>" + text + "</span>";
 						target.append(html);
-						var label = target.children('#pieLabel'+index);
-						var labelTop = (y - label.height()/2);
-						var labelLeft = (x - label.width()/2);
-						label.css('top', labelTop);
-						label.css('left', labelLeft);
-						
+
+						var label = target.children("#pieLabel" + index);
+						var labelTop = (y - label.height() / 2);
+						var labelLeft = (x - label.width() / 2);
+
+						label.css("top", labelTop);
+						label.css("left", labelLeft);
+
 						// check to make sure that the label is not outside the canvas
-						if (0-labelTop>0 || 0-labelLeft>0 || canvasHeight-(labelTop+label.height())<0 || canvasWidth-(labelLeft+label.width())<0)
+
+						if (0 - labelTop > 0 || 0 - labelLeft > 0 || canvasHeight - (labelTop + label.height()) < 0 || canvasWidth - (labelLeft + label.width()) < 0) {
 							redraw = true;
-						
+						}
+
 						if (options.series.pie.label.background.opacity != 0) {
+
 							// put in the transparent background separately to avoid blended labels and label boxes
+
 							var c = options.series.pie.label.background.color;
+
 							if (c == null) {
 								c = slice.color;
 							}
-							var pos = 'top:'+labelTop+'px;left:'+labelLeft+'px;';
-							$('<div class="pieLabelBackground" style="position:absolute;width:' + label.width() + 'px;height:' + label.height() + 'px;' + pos +'background-color:' + c + ';"> </div>').insertBefore(label).css('opacity', options.series.pie.label.background.opacity);
+
+							var pos = "top:" + labelTop + "px;left:" + labelLeft + "px;";
+							$("<div class='pieLabelBackground' style='position:absolute;width:" + label.width() + "px;height:" + label.height() + "px;" + pos + "background-color:" + c + ";'></div>")
+								.css("opacity", options.series.pie.label.background.opacity)
+								.insertBefore(label);
 						}
 					} // end individual label function
 				} // end drawLabels function
 			} // end drawPie function
 		} // end draw function
-		
-		// Placed here because it needs to be accessed from multiple locations 
-		function drawDonutHole(layer)
-		{
-			// draw donut hole
-			if(options.series.pie.innerRadius > 0)
-			{
+
+		// Placed here because it needs to be accessed from multiple locations
+
+		function drawDonutHole(layer) {
+			if (options.series.pie.innerRadius > 0) {
+
 				// subtract the center
+
 				layer.save();
 				innerRadius = options.series.pie.innerRadius > 1 ? options.series.pie.innerRadius : maxRadius * options.series.pie.innerRadius;
-				layer.globalCompositeOperation = 'destination-out'; // this does not work with excanvas, but it will fall back to using the stroke color
+				layer.globalCompositeOperation = "destination-out"; // this does not work with excanvas, but it will fall back to using the stroke color
 				layer.beginPath();
 				layer.fillStyle = options.series.pie.stroke.color;
-				layer.arc(0,0,innerRadius,0,Math.PI*2,false);
+				layer.arc(0, 0, innerRadius, 0, Math.PI * 2, false);
 				layer.fill();
 				layer.closePath();
 				layer.restore();
-				
+
 				// add inner stroke
+
 				layer.save();
 				layer.beginPath();
 				layer.strokeStyle = options.series.pie.stroke.color;
-				layer.arc(0,0,innerRadius,0,Math.PI*2,false);
+				layer.arc(0, 0, innerRadius, 0, Math.PI * 2, false);
 				layer.stroke();
 				layer.closePath();
 				layer.restore();
+
 				// TODO: add extra shadow inside hole (with a mask) if the pie is tilted.
 			}
 		}
-		
+
 		//-- Additional Interactive related functions --
-		
-		function isPointInPoly(poly, pt)
-		{
+
+		function isPointInPoly(poly, pt) {
 			for(var c = false, i = -1, l = poly.length, j = l - 1; ++i < l; j = i)
 				((poly[i][1] <= pt[1] && pt[1] < poly[j][1]) || (poly[j][1] <= pt[1] && pt[1]< poly[i][1]))
 				&& (pt[0] < (poly[j][0] - poly[i][0]) * (pt[1] - poly[i][1]) / (poly[j][1] - poly[i][1]) + poly[i][0])
 				&& (c = !c);
 			return c;
 		}
-		
-		function findNearbySlice(mouseX, mouseY)
-		{
-			var slices = plot.getData(),
-				options = plot.getOptions(),
-				radius = options.series.pie.radius > 1 ? options.series.pie.radius : maxRadius * options.series.pie.radius;
-			
-			for (var i = 0; i < slices.length; ++i) 
-			{
-				var s = slices[i];	
-				
-				if(s.pie.show)
-				{
+
+		function findNearbySlice(mouseX, mouseY) {
+
+			var slices = plot.getData();
+			var options = plot.getOptions();
+			var radius = options.series.pie.radius > 1 ? options.series.pie.radius : maxRadius * options.series.pie.radius;
+
+			for (var i = 0; i < slices.length; ++i) {
+
+				var s = slices[i];
+
+				if (s.pie.show) {
+
 					ctx.save();
 					ctx.beginPath();
-					ctx.moveTo(0,0); // Center of the pie
+					ctx.moveTo(0, 0); // Center of the pie
 					//ctx.scale(1, options.series.pie.tilt);	// this actually seems to break everything when here.
-					ctx.arc(0,0,radius,s.startAngle,s.startAngle+s.angle,false);
+					ctx.arc(0, 0, radius, s.startAngle, s.startAngle + s.angle, false);
 					ctx.closePath();
-					x = mouseX-centerLeft;
-					y = mouseY-centerTop;
-					if(ctx.isPointInPath)
-					{
-						if (ctx.isPointInPath(mouseX-centerLeft, mouseY-centerTop))
-						{
-							//alert('found slice!');
+					x = mouseX - centerLeft;
+					y = mouseY - centerTop;
+
+					if (ctx.isPointInPath) {
+						if (ctx.isPointInPath(mouseX - centerLeft, mouseY - centerTop)) {
 							ctx.restore();
-							return {datapoint: [s.percent, s.data], dataIndex: 0, series: s, seriesIndex: i};
+							return {
+								datapoint: [s.percent, s.data],
+								dataIndex: 0,
+								series: s,
+								seriesIndex: i
+							};
 						}
-					}
-					else
-					{
-						// excanvas for IE doesn;t support isPointInPath, this is a workaround. 
-						p1X = (radius * Math.cos(s.startAngle));
-						p1Y = (radius * Math.sin(s.startAngle));
-						p2X = (radius * Math.cos(s.startAngle+(s.angle/4)));
-						p2Y = (radius * Math.sin(s.startAngle+(s.angle/4)));
-						p3X = (radius * Math.cos(s.startAngle+(s.angle/2)));
-						p3Y = (radius * Math.sin(s.startAngle+(s.angle/2)));
-						p4X = (radius * Math.cos(s.startAngle+(s.angle/1.5)));
-						p4Y = (radius * Math.sin(s.startAngle+(s.angle/1.5)));
-						p5X = (radius * Math.cos(s.startAngle+s.angle));
-						p5Y = (radius * Math.sin(s.startAngle+s.angle));
-						arrPoly = [[0,0],[p1X,p1Y],[p2X,p2Y],[p3X,p3Y],[p4X,p4Y],[p5X,p5Y]];
-						arrPoint = [x,y];
+					} else {
+
+						// excanvas for IE doesn;t support isPointInPath, this is a workaround.
+
+						p1X = radius * Math.cos(s.startAngle);
+						p1Y = radius * Math.sin(s.startAngle);
+						p2X = radius * Math.cos(s.startAngle + s.angle / 4);
+						p2Y = radius * Math.sin(s.startAngle + s.angle / 4);
+						p3X = radius * Math.cos(s.startAngle + s.angle / 2);
+						p3Y = radius * Math.sin(s.startAngle + s.angle / 2);
+						p4X = radius * Math.cos(s.startAngle + s.angle / 1.5);
+						p4Y = radius * Math.sin(s.startAngle + s.angle / 1.5);
+						p5X = radius * Math.cos(s.startAngle + s.angle);
+						p5Y = radius * Math.sin(s.startAngle + s.angle);
+						arrPoly = [[0, 0], [p1X, p1Y], [p2X, p2Y], [p3X, p3Y], [p4X, p4Y], [p5X, p5Y]];
+						arrPoint = [x, y];
+
 						// TODO: perhaps do some mathmatical trickery here with the Y-coordinate to compensate for pie tilt?
-						if(isPointInPoly(arrPoly, arrPoint))
-						{
+
+						if (isPointInPoly(arrPoly, arrPoint)) {
 							ctx.restore();
-							return {datapoint: [s.percent, s.data], dataIndex: 0, series: s, seriesIndex: i};
-						}			
+							return {
+								datapoint: [s.percent, s.data],
+								dataIndex: 0,
+								series: s,
+								seriesIndex: i
+							};
+						}
 					}
+
 					ctx.restore();
 				}
 			}
-			
+
 			return null;
 		}
 
-		function onMouseMove(e) 
-		{
-			triggerClickHoverEvent('plothover', e);
+		function onMouseMove(e) {
+			triggerClickHoverEvent("plothover", e);
 		}
-		
-		function onClick(e) 
-		{
-			triggerClickHoverEvent('plotclick', e);
+
+		function onClick(e) {
+			triggerClickHoverEvent("plotclick", e);
 		}
 
 		// trigger click or hover event (they send the same parameters so we share their code)
-		function triggerClickHoverEvent(eventname, e) 
-		{
-			var offset = plot.offset(),
-				canvasX = parseInt(e.pageX - offset.left),
-				canvasY =  parseInt(e.pageY - offset.top),
-				item = findNearbySlice(canvasX, canvasY);
-			
-			if (options.grid.autoHighlight) 
-			{
+
+		function triggerClickHoverEvent(eventname, e) {
+			var offset = plot.offset();
+			var canvasX = parseInt(e.pageX - offset.left);
+			var canvasY =  parseInt(e.pageY - offset.top);
+			var item = findNearbySlice(canvasX, canvasY);
+
+			if (options.grid.autoHighlight) {
+
 				// clear auto-highlights
-				for (var i = 0; i < highlights.length; ++i) 
-				{
+
+				for (var i = 0; i < highlights.length; ++i) {
 					var h = highlights[i];
-					if (h.auto == eventname && !(item && h.series == item.series))
+					if (h.auto == eventname && !(item && h.series == item.series)) {
 						unhighlight(h.series);
+					}
 				}
 			}
-			
+
 			// highlight the slice
-			if (item) 
+
+			if (item) {
 				highlight(item.series, eventname);
-				
+			}
+
 			// trigger any hover bind events
+
 			var pos = { pageX: e.pageX, pageY: e.pageY };
-			target.trigger(eventname, [ pos, item ]);	
+			target.trigger(eventname, [pos, item]);
 		}
 
-		function highlight(s, auto) 
-		{
-			if (typeof s == "number")
+		function highlight(s, auto) {
+			if (typeof s == "number") {
 				s = series[s];
+			}
 
 			var i = indexOfHighlight(s);
-			if (i == -1) 
-			{
+
+			if (i == -1) {
 				highlights.push({ series: s, auto: auto });
 				plot.triggerRedrawOverlay();
-			}
-			else if (!auto)
+			} else if (!auto) {
 				highlights[i].auto = false;
+			}
 		}
 
-		function unhighlight(s) 
-		{
-			if (s == null) 
-			{
+		function unhighlight(s) {
+			if (s == null) {
 				highlights = [];
 				plot.triggerRedrawOverlay();
 			}
-			
-			if (typeof s == "number")
+
+			if (typeof s == "number") {
 				s = series[s];
+			}
 
 			var i = indexOfHighlight(s);
-			if (i != -1) 
-			{
+
+			if (i != -1) {
 				highlights.splice(i, 1);
 				plot.triggerRedrawOverlay();
 			}
 		}
 
-		function indexOfHighlight(s) 
-		{
-			for (var i = 0; i < highlights.length; ++i) 
-			{
+		function indexOfHighlight(s) {
+			for (var i = 0; i < highlights.length; ++i) {
 				var h = highlights[i];
 				if (h.series == s)
 					return i;
@@ -669,52 +711,50 @@ More detail and specific examples can be found in the included HTML file.
 			return -1;
 		}
 
-		function drawOverlay(plot, octx) 
-		{
-			//alert(options.series.pie.radius);
+		function drawOverlay(plot, octx) {
+
 			var options = plot.getOptions();
-			//alert(options.series.pie.radius);
-			
+
 			var radius = options.series.pie.radius > 1 ? options.series.pie.radius : maxRadius * options.series.pie.radius;
 
 			octx.save();
 			octx.translate(centerLeft, centerTop);
 			octx.scale(1, options.series.pie.tilt);
-			
-			for (i = 0; i < highlights.length; ++i) 
+
+			for (i = 0; i < highlights.length; ++i) {
 				drawHighlight(highlights[i].series);
-			
+			}
+
 			drawDonutHole(octx);
 
 			octx.restore();
 
-			function drawHighlight(series) 
-			{
-				if (series.angle <= 0 || isNaN(series.angle))
+			function drawHighlight(series) {
+
+				if (series.angle <= 0 || isNaN(series.angle)) {
 					return;
-				
+				}
+
 				//octx.fillStyle = parseColor(options.series.pie.highlight.color).scale(null, null, null, options.series.pie.highlight.opacity).toString();
-				octx.fillStyle = "rgba(255, 255, 255, "+options.series.pie.highlight.opacity+")"; // this is temporary until we have access to parseColor
-				
+				octx.fillStyle = "rgba(255, 255, 255, " + options.series.pie.highlight.opacity + ")"; // this is temporary until we have access to parseColor
 				octx.beginPath();
-				if (Math.abs(series.angle - Math.PI*2) > 0.000000001)
-					octx.moveTo(0,0); // Center of the pie
-				octx.arc(0,0,radius,series.startAngle,series.startAngle+series.angle,false);
+				if (Math.abs(series.angle - Math.PI * 2) > 0.000000001) {
+					octx.moveTo(0, 0); // Center of the pie
+				}
+				octx.arc(0, 0, radius, series.startAngle, series.startAngle + series.angle, false);
 				octx.closePath();
 				octx.fill();
 			}
-			
-		}	
-		
+		}
 	} // end init (plugin body)
-	
+
 	// define pie specific options and their default values
 	var options = {
 		series: {
 			pie: {
 				show: false,
-				radius: 'auto',	// actual radius of the visible pie (based on full calculated radius if <=1, or hard pixel value)
-				innerRadius:0, /* for donut */
+				radius: "auto",	// actual radius of the visible pie (based on full calculated radius if <=1, or hard pixel value)
+				innerRadius: 0, /* for donut */
 				startAngle: 3/2,
 				tilt: 1,
 				shadow: {
@@ -724,16 +764,16 @@ More detail and specific examples can be found in the included HTML file.
 				},
 				offset: {
 					top: 0,
-					left: 'auto'
+					left: "auto"
 				},
 				stroke: {
-					color: '#FFF',
+					color: "#fff",
 					width: 1
 				},
 				label: {
-					show: 'auto',
-					formatter: function(label, slice){
-						return '<div style="font-size:x-small;text-align:center;padding:2px;color:'+slice.color+';">'+label+'<br/>'+Math.round(slice.percent)+'%</div>';
+					show: "auto",
+					formatter: function(label, slice) {
+						return "<div style='font-size:x-small;text-align:center;padding:2px;color:" + slice.color + ";'>" + label + "<br/>" + Math.round(slice.percent) + "%</div>";
 					},	// formatter function
 					radius: 1,	// radius at which to place the labels (based on full calculated radius if <=1, or hard pixel value)
 					background: {
@@ -745,20 +785,21 @@ More detail and specific examples can be found in the included HTML file.
 				combine: {
 					threshold: -1,	// percentage at which to combine little slices into one larger slice
 					color: null,	// color to give the new slice (auto-generated if null)
-					label: 'Other'	// label to give the new slice
+					label: "Other"	// label to give the new slice
 				},
 				highlight: {
-					//color: '#FFF',		// will add this functionality once parseColor is available
+					//color: "#fff",		// will add this functionality once parseColor is available
 					opacity: 0.5
 				}
 			}
 		}
 	};
-	
+
 	$.plot.plugins.push({
 		init: init,
 		options: options,
 		name: "pie",
-		version: "1.0"
+		version: "1.1"
 	});
+
 })(jQuery);