Sync my recent stuff to HEAD. Easy Rule, Log parsing tweaks, Firewall Log filter, Firewall Log Summary graphs. Also add ProtoChart.

3 files changed, 3457 insertions, 0 deletions

diff --git a/usr/local/www/protochart/ProtoChart.js b/usr/local/www/protochart/ProtoChart.js
new file mode 100644
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+++ b/usr/local/www/protochart/ProtoChart.js
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+/**
+ * Class: ProtoChart 
+ * Version: v0.5 beta
+ * 
+ * ProtoChart is a charting lib on top of Prototype.
+ * This library is heavily motivated by excellent work done by:
+ * * Flot <http://code.google.com/p/flot/>
+ * * Flotr <http://solutoire.com/flotr/>
+ * 
+ * Complete examples can be found at: <http://www.deensoft.com/lab/protochart>
+ */
+
+/**
+ * Events:
+ * ProtoChart:mousemove - Fired when mouse is moved over the chart
+ * ProtoChart:plotclick - Fired when graph is clicked
+ * ProtoChart:dataclick - Fired when graph is clicked AND the click is on a data point
+ * ProtoChart:selected	- Fired when certain region on the graph is selected
+ * ProtoChart:hit		- Fired when mouse is moved near or over certain data point on the graph
+ */
+
+
+if(!Proto) var Proto = {};
+
+Proto.Chart = Class.create({
+	/**
+	 * Function: 
+	 * {Object} elem
+	 * {Object} data
+	 * {Object} options
+	 */
+	initialize: function(elem, data, options)
+	{
+		options = options || {};
+		this.graphData = [];
+		/**
+		 * Property: options
+		 * 
+		 * Description: Various options can be set. More details in description.
+		 * 
+		 * colors:
+		 * {Array}		- pass in a array which contains strings of colors you want to use. Default has 6 color set.
+		 * 
+		 * legend:
+		 * {BOOL} 		- show				- if you want to show the legend. Default is false
+		 * {integer} 	- noColumns			- Number of columns for the legend. Default is 1
+		 * {function} 	- labelFormatter	- A function that returns a string. The function is called with a string and is expected to return a string. Default = null
+		 * {string}		- labelBoxBorderColor - border color for the little label boxes. Default #CCC
+		 * {HTMLElem}	- container			- an HTML id or HTML element where the legend should be rendered. If left null means to put the legend on top of the Chart
+		 * {string}		- position			- position for the legend on the Chart. Default value 'ne'
+		 * {integer}	- margin			- default valud of 5
+		 * {string} 	- backgroundColor	- default to null (which means auto-detect)
+		 * {float} 		- backgroundOpacity - leave it 0 to avoid background
+		 * 
+		 * xaxis (yaxis) options:
+		 * {string} 	- mode 		- default is null but you can pass a string "time" to indicate time series
+		 * {integer}	- min
+		 * {integer}	- max
+		 * {float}		- autoscaleMargin - in % to add if auto-setting min/max
+		 * {mixed}		- ticks - either [1, 3] or [[1, "a"], 3] or a function which gets axis info and returns ticks
+		 * {function} 	- tickFormatter - A function that returns a string as a tick label. Default is null
+		 * {float}		- tickDecimals
+		 * {integer}	- tickSize
+		 * {integer} 	- minTickSize
+		 * {array}		- monthNames
+		 * {string}		- timeformat
+		 * 
+		 * Points / Lines / Bars options:
+		 * {bool}		- show, default is false
+		 * {integer}	- radius: default is 3
+		 * {integer}	- lineWidth : default is 2
+		 * {bool}		- fill : default is true
+		 * {string}		- fillColor: default is #ffffff
+		 * 
+		 * Grid options:
+		 * {string}		- color
+		 * {string}		- backgroundColor 	- defualt is *null*
+		 * {string}		- tickColor			- default is *#dddddd*
+		 * {integer}	- labelMargin		- should be in pixels default is 3
+		 * {integer}	- borderWidth		- default *1*
+		 * {bool}		- clickable 		- default *null* - pass in TRUE if you wish to monitor click events
+		 * {mixed}		- coloredAreas 		- default *null* - pass in mixed object eg. {x1, x2}
+		 * {string}		- coloredAreasColor	- default *#f4f4f4*
+		 * {bool}		- drawXAxis			- default *true*
+		 * {bool}		- drawYAxis			- default *true*
+		 * 
+		 * selection options:
+		 * {string}		- mode : either "x", "y" or "xy"
+		 * {string}		- color : string
+		 */
+		this.options = this.merge(options,{
+			colors: ["#edc240", "#00A8F0", "#C0D800", "#cb4b4b", "#4da74d", "#9440ed"],
+            legend: {
+                show: false,
+                noColumns: 1,
+                labelFormatter: null,
+                labelBoxBorderColor: "#ccc",
+                container: null, 
+                position: "ne",
+                margin: 5,
+                backgroundColor: null,
+                backgroundOpacity: 0.85
+            },
+            xaxis: {
+				mode: null, 
+                min: null,
+                max: null,
+                autoscaleMargin: null,
+                ticks: null,
+                tickFormatter: null,
+                tickDecimals: null,
+                tickSize: null,
+                minTickSize: null,
+                monthNames: null,
+                timeformat: null
+            },
+            yaxis: {
+				mode: null,
+				min: null,
+				max: null,
+				ticks: null,
+				tickFormatter: null,
+				tickDecimals: null,
+				tickSize: null,
+				minTickSize: null,
+				monthNames: null,
+				timeformat: null,				
+                autoscaleMargin: 0.02
+            },
+
+            points: {
+                show: false,
+                radius: 3,
+                lineWidth: 2,
+                fill: true,
+                fillColor: "#ffffff"
+            },
+            lines: {
+                show: false,
+                lineWidth: 2,
+                fill: false,
+                fillColor: null
+            },
+            bars: {
+                show: false,
+                lineWidth: 2,
+                barWidth: 1,
+                fill: true,
+                fillColor: null,
+				showShadow: false,
+				fillOpacity: 0.4,
+				autoScale: true
+            },
+			pies: {
+				show: false,
+				radius: 50,
+				borderWidth: 1,
+				fill: true,
+				fillColor: null,
+				fillOpacity: 0.90,
+				labelWidth: 30,
+				fontSize: 11,
+				autoScale: true
+			},
+            grid: {
+                color: "#545454",
+                backgroundColor: null,
+                tickColor: "#dddddd",
+                labelMargin: 3,
+                borderWidth: 1,
+                clickable: null,
+                coloredAreas: null,
+                coloredAreasColor: "#f4f4f4",
+				drawXAxis: true,
+				drawYAxis: true
+            },
+			mouse: {
+				track: false,
+				position: 'se',
+				fixedPosition: true,
+				clsName: 'mouseValHolder',
+				trackFormatter: this.defaultTrackFormatter,
+				margin: 3,
+				color: '#ff3f19',
+				trackDecimals: 1,
+				sensibility: 2,
+				radius: 5,
+				lineColor: '#cb4b4b'
+			},
+            selection: {
+                mode: null,
+                color: "#97CBFF"
+            },
+			allowDataClick: true,
+			makeRandomColor: false,
+            shadowSize: 4			
+		});
+		
+		/*
+		 * Local variables.
+		 */
+		this.canvas = null; 
+		this.overlay = null;
+		this.eventHolder = null;
+		this.context = null;
+		this.overlayContext = null;
+		
+		this.domObj = $(elem);
+
+		this.xaxis = {};
+		this.yaxis = {};
+		this.chartOffset = {left: 0, right: 0, top: 0, bottom: 0};
+		this.yLabelMaxWidth = 0;
+		this.yLabelMaxHeight = 0;
+		this.xLabelBoxWidth = 0;
+		this.canvasWidth = 0;
+		this.canvasHeight = 0;
+		this.chartWidth = 0;
+		this.chartHeight = 0;
+		this.hozScale = 0;
+		this.vertScale = 0;
+		this.workarounds = {};
+		
+		this.domObj = $(elem);
+		
+		this.barDataRange = [];
+		
+        this.lastMousePos = { pageX: null, pageY: null };
+        this.selection = { first: { x: -1, y: -1}, second: { x: -1, y: -1} };
+        this.prevSelection = null;
+        this.selectionInterval = null;
+        this.ignoreClick = false;	
+		this.prevHit = null;
+			
+		if(this.options.makeRandomColor)
+			this.options.color = this.makeRandomColor(this.options.colors);
+		
+		this.setData(data);
+		this.constructCanvas();
+		this.setupGrid();
+		this.draw();
+	},
+	/**
+	 * Private function internally used.
+	 */
+	merge: function(src, dest)
+	{
+		var result = dest || {};
+		for(var i in src){		  
+			result[i] = (typeof(src[i]) == 'object' && !(src[i].constructor == Array || src[i].constructor == RegExp)) ? this.merge(src[i], dest[i]) : result[i] = src[i];		
+		}
+		return result;	
+	},
+	/**
+	 * Function: setData
+	 * {Object} data
+	 * 
+	 * Description:
+	 * Sets datasoruces properly then sets the Bar Width accordingly, then copies the default data options and then processes the graph data
+	 * 
+	 * Returns: none
+	 * 
+	 */	
+	setData: function(data) 
+	{
+        this.graphData = this.parseData(data);		
+		this.setBarWidth();
+        this.copyGraphDataOptions();
+        this.processGraphData();
+    },
+	/**
+	 * Function: parseData
+	 * {Object} data
+	 * 
+	 * Return: 
+	 * {Object} result
+	 * 
+	 * Description:
+	 * Takes the provided data object and converts it into generic data that we can understand. User can pass in data in 3 different ways:
+	 * - [d1, d2]
+	 * - [{data: d1, label: "data1"}, {data: d2, label: "data2"}]
+	 * - [d1, {data: d1, label: "data1"}]
+	 * 
+	 * This function parses these senarios and makes it readable
+	 */
+	parseData: function(data)
+	{
+		var res = [];
+		data.each(function(d){
+			var s;
+			if(d.data) {
+				s = {};
+				for(var v in d) {
+					s[v] = d[v];
+				}
+			}
+			else {
+				s = {data: d};
+			}
+			res.push(s);
+		}.bind(this));
+		return res;
+	},
+	/**
+	 * function: makeRandomColor
+	 * {Object} colorSet
+	 * 
+	 * Return: 
+	 * {Array} result - array containing random colors
+	 */
+	makeRandomColor: function(colorSet)
+	{
+		var randNum = Math.floor(Math.random() * colorSet.length);
+		var randArr = [];
+		var newArr = [];
+		randArr.push(randNum);
+		
+		while(randArr.length < colorSet.length)
+		{
+			var tempNum = Math.floor(Math.random() * colorSet.length);
+	
+			while(checkExisted(tempNum, randArr))
+				tempNum = Math.floor(Math.random() * colorSet.length);
+				
+			randArr.push(tempNum);
+		}
+		
+		randArr.each(function(ra){
+			newArr.push(colorSet[ra]);
+			
+		}.bind(this));
+		return newArr;		
+	},
+	/**
+	 * function: checkExisted
+	 * {Object} needle
+	 * {Object} haystack
+	 * 
+	 * return: 
+	 * {bool} existed - true if it finds needle in the haystack
+	 */
+	checkExisted: function(needle, haystack)
+	{
+		var existed = false;
+		haystack.each(function(aNeedle){
+			if(aNeedle == needle) {
+				existed = true;
+				throw $break;
+			}
+		}.bind(this));
+		return existed;
+	},
+	/**
+	 * function: setBarWidth
+	 * 
+	 * Description: sets the bar width for Bar Graph, you should enable *autoScale* property for bar graph
+	 */
+	setBarWidth: function()
+	{
+		if(this.options.bars.show && this.options.bars.autoScale)
+		{
+			this.options.bars.barWidth = 1 / this.graphData.length / 1.2;	
+		}
+	},
+	/**
+	 * Function: copyGraphDataOptions
+	 * 
+	 * Description: Private function that goes through each graph data (series) and assigned the graph
+	 * properties to it.
+	 */
+	copyGraphDataOptions: function()
+	{
+		var i, neededColors = this.graphData.length, usedColors = [], assignedColors = [];
+		
+		this.graphData.each(function(gd){
+			var sc = gd.color;
+			if(sc) {
+				--neededColors;
+				if(Object.isNumber(sc)) {
+					assignedColors.push(sc);
+				}
+				else {
+					usedColors.push(this.parseColor(sc));
+				}
+			}
+		}.bind(this));
+		
+		
+		assignedColors.each(function(ac){
+			neededColors = Math.max(neededColors, ac + 1);
+		});
+
+        var colors = [];
+        var variation = 0;
+        i = 0;
+        while (colors.length < neededColors) {
+            var c;
+            if (this.options.colors.length == i) {
+				c = new Proto.Color(100, 100, 100);
+			}
+			else {
+				c = this.parseColor(this.options.colors[i]);
+			}
+
+            var sign = variation % 2 == 1 ? -1 : 1;
+            var factor = 1 + sign * Math.ceil(variation / 2) * 0.2;
+            c.scale(factor, factor, factor);
+
+            colors.push(c);
+            
+            ++i;
+            if (i >= this.options.colors.length) {
+                i = 0;
+                ++variation;
+            }
+        }
+
+        var colorIndex = 0, s;
+		
+		this.graphData.each(function(gd){
+			if(gd.color == null)
+			{
+				gd.color = colors[colorIndex].toString();
+				++colorIndex;
+			}
+			else if(Object.isNumber(gd.color)) {
+				gd.color = colors[gd.color].toString();
+			}
+			
+            gd.lines = Object.extend(Object.clone(this.options.lines), gd.lines); 
+            gd.points = Object.extend(Object.clone(this.options.points), gd.points); 
+            gd.bars = Object.extend(Object.clone(this.options.bars), gd.bars); 
+            gd.mouse = Object.extend(Object.clone(this.options.mouse), gd.mouse);
+            if (gd.shadowSize == null) {
+                gd.shadowSize = this.options.shadowSize;
+			}
+		}.bind(this));
+			
+	},
+	/**
+	 * Function: processGraphData
+	 * 
+	 * Description: processes graph data, setup xaxis and yaxis min and max points. 
+	 */
+	processGraphData: function() {
+		
+		this.xaxis.datamin = this.yaxis.datamin = Number.MAX_VALUE;
+		this.xaxis.datamax = this.yaxis.datamax = Number.MIN_VALUE;
+			
+		this.graphData.each(function(gd) {
+			var data = gd.data;
+			data.each(function(d){
+				if(d == null) {
+					return;
+				}
+				
+				var x = d[0], y = d[1];
+				if(!x || !y || isNaN(x = +x) || isNaN(y = +y)) {
+					d = null;
+					return;
+				}
+				
+				if (x < this.xaxis.datamin)
+					this.xaxis.datamin = x;
+				if (x > this.xaxis.datamax)
+					this.xaxis.datamax = x;
+				if (y < this.yaxis.datamin)
+					this.yaxis.datamin = y;
+				if (y > this.yaxis.datamax)
+					this.yaxis.datamax = y;
+			}.bind(this));
+		}.bind(this));
+
+		
+		if (this.xaxis.datamin == Number.MAX_VALUE)
+			this.xaxis.datamin = 0;
+		if (this.yaxis.datamin == Number.MAX_VALUE)
+			this.yaxis.datamin = 0;
+		if (this.xaxis.datamax == Number.MIN_VALUE)
+			this.xaxis.datamax = 1;
+		if (this.yaxis.datamax == Number.MIN_VALUE)
+			this.yaxis.datamax = 1;
+	},
+	/**
+	 * Function: constructCanvas
+	 * 
+	 * Description: constructs the main canvas for drawing. It replicates the HTML elem (usually DIV) passed
+	 * in via constructor. If there is no height/width assigned to the HTML elem then we take a default size
+	 * of 400px (width) and 300px (height)
+	 */
+	constructCanvas: function() {
+
+		this.canvasWidth = this.domObj.getWidth();
+		this.canvasHeight = this.domObj.getHeight();
+		this.domObj.update(""); // clear target
+		this.domObj.setStyle({
+			"position": "relative"
+		}); 
+
+		if (this.canvasWidth <= 0) {
+			this.canvasWdith = 400;
+		}
+		if(this.canvasHeight <= 0) {
+			this.canvasHeight = 300;
+		}
+		
+		this.canvas = (Prototype.Browser.IE) ? document.createElement("canvas") : new Element("CANVAS", {'width': this.canvasWidth, 'height': this.canvasHeight});
+		Element.extend(this.canvas);
+		this.canvas.style.width = this.canvasWidth + "px";
+		this.canvas.style.height = this.canvasHeight + "px";
+		
+		this.domObj.appendChild(this.canvas);
+		
+		if (Prototype.Browser.IE) // excanvas hack
+		{
+			this.canvas = $(window.G_vmlCanvasManager.initElement(this.canvas));
+		}
+		this.canvas = $(this.canvas);
+		
+		this.context = this.canvas.getContext("2d");
+
+		this.overlay = (Prototype.Browser.IE) ? document.createElement("canvas") :  new Element("CANVAS", {'width': this.canvasWidth, 'height': this.canvasHeight});
+		Element.extend(this.overlay);
+		this.overlay.style.width = this.canvasWidth + "px";
+		this.overlay.style.height = this.canvasHeight + "px";
+		this.overlay.style.position = "absolute";
+		this.overlay.style.left = "0px";
+		this.overlay.style.right = "0px";
+		
+		this.overlay.setStyle({
+			'position': 'absolute',
+			'left': '0px',
+			'right': '0px'
+		});
+		this.domObj.appendChild(this.overlay);
+		
+		if (Prototype.Browser.IE) {
+			this.overlay = $(window.G_vmlCanvasManager.initElement(this.overlay));
+		}
+		
+		this.overlay = $(this.overlay);
+		this.overlayContext = this.overlay.getContext("2d");
+
+		if(this.options.selection.mode)
+		{
+			this.overlay.observe('mousedown', this.onMouseDown.bind(this));
+			this.overlay.observe('mousemove', this.onMouseMove.bind(this));
+		}
+		if(this.options.grid.clickable) {
+			this.overlay.observe('click', this.onClick.bind(this));
+		}
+		if(this.options.mouse.track)
+		{
+			this.overlay.observe('mousemove', this.onMouseMove.bind(this));
+		}
+	},
+	/**
+	 * function: setupGrid
+	 * 
+	 * Description: a container function that does a few interesting things.
+	 * 
+	 * 1. calls <extendXRangeIfNeededByBar> function which makes sure that our axis are expanded if needed
+	 * 
+	 * 2. calls <setRange> function providing xaxis options which fixes the ranges according to data points
+	 * 
+	 * 3. calls <prepareTickGeneration> function for xaxis which generates ticks according to options provided by user
+	 * 
+	 * 4. calls <setTicks> function for xaxis that sets the ticks
+	 * 
+	 * similar sequence is called for y-axis. 
+	 * 
+	 * At the end if this is a pie chart than we insert Labels (around the pie chart) via <insertLabels> and we also call <insertLegend>
+	 */
+	setupGrid: function()
+	{
+		if(this.options.bars.show)
+		{
+			this.xaxis.max += 0.5;
+			this.xaxis.min -= 0.5;
+		}
+		//x-axis
+		this.extendXRangeIfNeededByBar();
+		this.setRange(this.xaxis, this.options.xaxis);
+		this.prepareTickGeneration(this.xaxis, this.options.xaxis);
+		this.setTicks(this.xaxis, this.options.xaxis);
+		
+		
+		//y-axis
+		this.setRange(this.yaxis, this.options.yaxis);
+		this.prepareTickGeneration(this.yaxis, this.options.yaxis);
+		this.setTicks(this.yaxis, this.options.yaxis);
+		this.setSpacing();
+		
+		if(!this.options.pies.show)
+		{
+			this.insertLabels();
+		}
+		this.insertLegend();
+	},
+	/**
+	 * function: setRange
+	 * 
+	 * parameters:
+	 * {Object} axis
+	 * {Object} axisOptions
+	 */
+	setRange: function(axis, axisOptions) {
+		var min = axisOptions.min != null ? axisOptions.min : axis.datamin;
+		var max = axisOptions.max != null ? axisOptions.max : axis.datamax;
+
+		if (max - min == 0.0) {
+			// degenerate case
+			var widen;
+			if (max == 0.0)
+				widen = 1.0;
+			else
+				widen = 0.01;
+
+			min -= widen;
+			max += widen;
+		}
+		else {
+			// consider autoscaling
+			var margin = axisOptions.autoscaleMargin;
+			if (margin != null) {
+				if (axisOptions.min == null) {
+					min -= (max - min) * margin;
+					// make sure we don't go below zero if all values
+					// are positive
+					if (min < 0 && axis.datamin >= 0)
+						min = 0;
+				}
+				if (axisOptions.max == null) {
+					max += (max - min) * margin;
+					if (max > 0 && axis.datamax <= 0)
+						max = 0;
+				}
+			}
+		}
+		axis.min = min;
+		axis.max = max;
+	},
+	/**
+	 * function: prepareTickGeneration
+	 * 
+	 * Parameters:
+	 * {Object} axis
+	 * {Object} axisOptions
+	 */
+	prepareTickGeneration: function(axis, axisOptions) {
+		// estimate number of ticks
+		var noTicks;
+		if (Object.isNumber(axisOptions.ticks) && axisOptions.ticks > 0)
+			noTicks = axisOptions.ticks;
+		else if (axis == this.xaxis)
+			noTicks = this.canvasWidth / 100;
+		else
+			noTicks = this.canvasHeight / 60;
+		
+		var delta = (axis.max - axis.min) / noTicks;
+		var size, generator, unit, formatter, i, magn, norm;
+
+		if (axisOptions.mode == "time") {
+			function formatDate(d, fmt, monthNames) {
+				var leftPad = function(n) {
+					n = "" + n;
+					return n.length == 1 ? "0" + n : n;
+				};
+				
+				var r = [];
+				var escape = false;
+				if (monthNames == null)
+					monthNames = ["Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"];
+				for (var i = 0; i < fmt.length; ++i) {
+					var c = fmt.charAt(i);
+					
+					if (escape) {
+						switch (c) {
+						case 'h': c = "" + d.getHours(); break;
+						case 'H': c = leftPad(d.getHours()); break;
+						case 'M': c = leftPad(d.getMinutes()); break;
+						case 'S': c = leftPad(d.getSeconds()); break;
+						case 'd': c = "" + d.getDate(); break;
+						case 'm': c = "" + (d.getMonth() + 1); break;
+						case 'y': c = "" + d.getFullYear(); break;
+						case 'b': c = "" + monthNames[d.getMonth()]; break;
+						}
+						r.push(c);
+						escape = false;
+					}
+					else {
+						if (c == "%")
+							escape = true;
+						else
+							r.push(c);
+					}
+				}
+				return r.join("");
+			}
+			
+				
+			// map of app. size of time units in milliseconds
+			var timeUnitSize = {
+				"second": 1000,
+				"minute": 60 * 1000,
+				"hour": 60 * 60 * 1000,
+				"day": 24 * 60 * 60 * 1000,
+				"month": 30 * 24 * 60 * 60 * 1000,
+				"year": 365.2425 * 24 * 60 * 60 * 1000
+			};
+
+
+			// the allowed tick sizes, after 1 year we use
+			// an integer algorithm
+			var spec = [
+				[1, "second"], [2, "second"], [5, "second"], [10, "second"],
+				[30, "second"], 
+				[1, "minute"], [2, "minute"], [5, "minute"], [10, "minute"],
+				[30, "minute"], 
+				[1, "hour"], [2, "hour"], [4, "hour"],
+				[8, "hour"], [12, "hour"],
+				[1, "day"], [2, "day"], [3, "day"],
+				[0.25, "month"], [0.5, "month"], [1, "month"],
+				[2, "month"], [3, "month"], [6, "month"],
+				[1, "year"]
+			];
+
+			var minSize = 0;
+			if (axisOptions.minTickSize != null) {
+				if (typeof axisOptions.tickSize == "number")
+					minSize = axisOptions.tickSize;
+				else
+					minSize = axisOptions.minTickSize[0] * timeUnitSize[axisOptions.minTickSize[1]];
+			}
+			
+			for (i = 0; i < spec.length - 1; ++i) {
+				if (delta < (spec[i][0] * timeUnitSize[spec[i][1]] + spec[i + 1][0] * timeUnitSize[spec[i + 1][1]]) / 2 && spec[i][0] * timeUnitSize[spec[i][1]] >= minSize) {
+					break;
+				}
+			}
+			
+			size = spec[i][0];
+			unit = spec[i][1];
+			
+			// special-case the possibility of several years
+			if (unit == "year") {
+				magn = Math.pow(10, Math.floor(Math.log(delta / timeUnitSize.year) / Math.LN10));
+				norm = (delta / timeUnitSize.year) / magn;
+				if (norm < 1.5)
+					size = 1;
+				else if (norm < 3)
+					size = 2;
+				else if (norm < 7.5)
+					size = 5;
+				else
+					size = 10;
+
+				size *= magn;
+			}
+
+			if (axisOptions.tickSize) {
+				size = axisOptions.tickSize[0];
+				unit = axisOptions.tickSize[1];
+			}
+			
+			var floorInBase = this.floorInBase; //gives us a reference to a global function.. 
+			
+			generator = function(axis) {
+				var ticks = [],
+					tickSize = axis.tickSize[0], unit = axis.tickSize[1],
+					d = new Date(axis.min);
+				
+				var step = tickSize * timeUnitSize[unit];
+				
+				
+				
+				if (unit == "second")
+					d.setSeconds(floorInBase(d.getSeconds(), tickSize));
+				if (unit == "minute")
+					d.setMinutes(floorInBase(d.getMinutes(), tickSize));
+				if (unit == "hour")
+					d.setHours(floorInBase(d.getHours(), tickSize));
+				if (unit == "month")
+					d.setMonth(floorInBase(d.getMonth(), tickSize));
+				if (unit == "year")
+					d.setFullYear(floorInBase(d.getFullYear(), tickSize));
+				
+				// reset smaller components
+				d.setMilliseconds(0);
+				if (step >= timeUnitSize.minute)
+					d.setSeconds(0);
+				if (step >= timeUnitSize.hour)
+					d.setMinutes(0);
+				if (step >= timeUnitSize.day)
+					d.setHours(0);
+				if (step >= timeUnitSize.day * 4)
+					d.setDate(1);
+				if (step >= timeUnitSize.year)
+					d.setMonth(0);
+
+
+				var carry = 0, v;
+				do {
+					v = d.getTime();
+					ticks.push({ v: v, label: axis.tickFormatter(v, axis) });
+					if (unit == "month") {
+						if (tickSize < 1) {
+							d.setDate(1);
+							var start = d.getTime();
+							d.setMonth(d.getMonth() + 1);
+							var end = d.getTime();
+							d.setTime(v + carry * timeUnitSize.hour + (end - start) * tickSize);
+							carry = d.getHours();
+							d.setHours(0);
+						}
+						else
+							d.setMonth(d.getMonth() + tickSize);
+					}
+					else if (unit == "year") {
+						d.setFullYear(d.getFullYear() + tickSize);
+					}
+					else
+						d.setTime(v + step);
+				} while (v < axis.max);
+
+				return ticks;
+			};
+
+			formatter = function (v, axis) {
+				var d = new Date(v);
+
+				// first check global format
+				if (axisOptions.timeformat != null)
+					return formatDate(d, axisOptions.timeformat, axisOptions.monthNames);
+				
+				var t = axis.tickSize[0] * timeUnitSize[axis.tickSize[1]];
+				var span = axis.max - axis.min;
+				
+				if (t < timeUnitSize.minute)
+					fmt = "%h:%M:%S";
+				else if (t < timeUnitSize.day) {
+					if (span < 2 * timeUnitSize.day)
+						fmt = "%h:%M";
+					else
+						fmt = "%b %d %h:%M";
+				}
+				else if (t < timeUnitSize.month)
+					fmt = "%b %d";
+				else if (t < timeUnitSize.year) {
+					if (span < timeUnitSize.year)
+						fmt = "%b";
+					else
+						fmt = "%b %y";
+				}
+				else
+					fmt = "%y";
+				
+				return formatDate(d, fmt, axisOptions.monthNames);
+			};
+		}
+		else {
+			// pretty rounding of base-10 numbers
+			var maxDec = axisOptions.tickDecimals;
+			var dec = -Math.floor(Math.log(delta) / Math.LN10);
+			if (maxDec != null && dec > maxDec)
+				dec = maxDec;
+			
+			magn = Math.pow(10, -dec);
+			norm = delta / magn; // norm is between 1.0 and 10.0
+			
+			if (norm < 1.5)
+				size = 1;
+			else if (norm < 3) {
+				size = 2;
+				// special case for 2.5, requires an extra decimal
+				if (norm > 2.25 && (maxDec == null || dec + 1 <= maxDec)) {
+					size = 2.5;
+					++dec;
+				}
+			}
+			else if (norm < 7.5)
+				size = 5;
+			else
+				size = 10;
+
+			size *= magn;
+			
+			if (axisOptions.minTickSize != null && size < axisOptions.minTickSize)
+				size = axisOptions.minTickSize;
+
+			if (axisOptions.tickSize != null)
+				size = axisOptions.tickSize;
+			
+			axis.tickDecimals = Math.max(0, (maxDec != null) ? maxDec : dec);
+			
+			var floorInBase = this.floorInBase;
+			
+			generator = function (axis) {
+				var ticks = [];
+				var start = floorInBase(axis.min, axis.tickSize);
+				// then spew out all possible ticks
+				var i = 0, v;
+				do {
+					v = start + i * axis.tickSize;
+					ticks.push({ v: v, label: axis.tickFormatter(v, axis) });
+					++i;
+				} while (v < axis.max);
+				return ticks;
+			};
+
+			formatter = function (v, axis) {
+				if(v) {
+				return v.toFixed(axis.tickDecimals);
+				}
+				return 0;
+			};
+		}
+
+		axis.tickSize = unit ? [size, unit] : size;
+		axis.tickGenerator = generator;
+		if (Object.isFunction(axisOptions.tickFormatter))
+			axis.tickFormatter = function (v, axis) { return "" + axisOptions.tickFormatter(v, axis); };
+		else
+			axis.tickFormatter = formatter;
+	},
+	/**
+	 * function: extendXRangeIfNeededByBar
+	 */
+	extendXRangeIfNeededByBar: function() {
+
+		if (this.options.xaxis.max == null) {
+			// great, we're autoscaling, check if we might need a bump
+			var newmax = this.xaxis.max;
+			this.graphData.each(function(gd){
+				if(gd.bars.show && gd.bars.barWidth + this.xaxis.datamax > newmax)
+				{
+					newmax = this.xaxis.datamax + gd.bars.barWidth;
+				}
+			}.bind(this));
+			this.xaxis.nax = newmax;
+			
+		}
+	},
+	/**
+	 * function: setTicks
+	 * 
+	 * parameters:
+	 * {Object} axis
+	 * {Object} axisOptions
+	 */
+	setTicks: function(axis, axisOptions) {
+		axis.ticks = [];
+		
+		if (axisOptions.ticks == null)
+			axis.ticks = axis.tickGenerator(axis);
+		else if (typeof axisOptions.ticks == "number") {
+			if (axisOptions.ticks > 0)
+				axis.ticks = axis.tickGenerator(axis);
+		}
+		else if (axisOptions.ticks) {
+			var ticks = axisOptions.ticks;
+
+			if (Object.isFunction(ticks))
+				// generate the ticks
+				ticks = ticks({ min: axis.min, max: axis.max });
+			
+			// clean up the user-supplied ticks, copy them over
+			//var i, v;
+			ticks.each(function(t, i){
+				var v = null;
+				var label = null;
+				if(typeof t == 'object') {
+					v = t[0];
+					if(t.length > 1) { label = t[1]; }
+				}
+				else {
+					v = t;
+				}
+				if(!label) {
+					label = axis.tickFormatter(v, axis);
+				}
+				axis.ticks[i] = {v: v, label: label}
+			}.bind(this));
+
+		}
+
+		if (axisOptions.autoscaleMargin != null && axis.ticks.length > 0) {
+			if (axisOptions.min == null)
+				axis.min = Math.min(axis.min, axis.ticks[0].v);
+			if (axisOptions.max == null && axis.ticks.length > 1)
+				axis.max = Math.min(axis.max, axis.ticks[axis.ticks.length - 1].v);
+		}
+	},
+	/**
+	 * Function: setSpacing
+	 * 
+	 * Parameters: none
+	 */
+	setSpacing: function() {
+		// calculate y label dimensions
+		var i, labels = [], l;
+		for (i = 0; i < this.yaxis.ticks.length; ++i) {
+			l = this.yaxis.ticks[i].label;
+
+			if (l)
+				labels.push('<div class="tickLabel">' + l + '</div>');
+		}
+
+		if (labels.length > 0) {
+			var dummyDiv = new Element('div', {'style': 'position:absolute;top:-10000px;font-size:smaller'});
+			dummyDiv.update(labels.join(""));
+			this.domObj.insert(dummyDiv);
+			this.yLabelMaxWidth = dummyDiv.getWidth();
+			this.yLabelMaxHeight = dummyDiv.select('div')[0].getHeight();
+			dummyDiv.remove();
+		}
+
+		var maxOutset = this.options.grid.borderWidth;
+		if (this.options.points.show)
+			maxOutset = Math.max(maxOutset, this.options.points.radius + this.options.points.lineWidth/2);
+		for (i = 0; i < this.graphData.length; ++i) {
+			if (this.graphData[i].points.show)
+				maxOutset = Math.max(maxOutset, this.graphData[i].points.radius + this.graphData[i].points.lineWidth/2);
+		}
+
+		this.chartOffset.left = this.chartOffset.right = this.chartOffset.top = this.chartOffset.bottom = maxOutset;
+		
+		this.chartOffset.left += this.yLabelMaxWidth + this.options.grid.labelMargin;
+		this.chartWidth = this.canvasWidth - this.chartOffset.left - this.chartOffset.right;
+
+		this.xLabelBoxWidth = this.chartWidth / 6;
+		labels = [];
+
+		for (i = 0; i < this.xaxis.ticks.length; ++i) {
+			l = this.xaxis.ticks[i].label;
+			if (l) {
+				labels.push('<span class="tickLabel" width="' + this.xLabelBoxWidth + '">' + l + '</span>');
+			}
+		}
+
+		var xLabelMaxHeight = 0;
+		if (labels.length > 0) {
+			var dummyDiv = new Element('div', {'style': 'position:absolute;top:-10000px;font-size:smaller'});
+			dummyDiv.update(labels.join(""));
+			this.domObj.appendChild(dummyDiv);	
+			xLabelMaxHeight = dummyDiv.getHeight();
+			dummyDiv.remove();
+		}
+
+		this.chartOffset.bottom += xLabelMaxHeight + this.options.grid.labelMargin;
+		this.chartHeight = this.canvasHeight - this.chartOffset.bottom - this.chartOffset.top;
+		this.hozScale = this.chartWidth / (this.xaxis.max - this.xaxis.min);
+		this.vertScale = this.chartHeight / (this.yaxis.max - this.yaxis.min);
+	},
+	/**
+	 * function: draw
+	 */
+	draw: function() {
+		if(this.options.bars.show)
+		{
+			this.extendXRangeIfNeededByBar();
+			this.setSpacing();
+			this.drawGrid();
+			this.drawBarGraph(this.graphData, this.barDataRange);
+		}
+		else if(this.options.pies.show)
+		{
+			this.preparePieData(this.graphData);
+			this.drawPieGraph(this.graphData);
+		}
+		else
+		{
+			this.drawGrid();
+			for (var i = 0; i < this.graphData.length; i++) {
+				this.drawGraph(this.graphData[i]);
+			}
+		}
+	},
+    /**
+     * function: translateHoz
+     * 
+     * Paramters:
+     * {Object} x
+     * 
+     * Description: Given a value this function translate it to relative x coord on canvas
+     */
+	translateHoz: function(x) {
+        return (x - this.xaxis.min) * this.hozScale;
+    },
+	/**
+	 * function: translateVert
+	 * 
+	 * parameters:
+	 * {Object} y
+	 * 
+	 * Description: Given a value this function translate it to relative y coord on canvas
+	 */
+    translateVert: function(y) {
+        return this.chartHeight - (y - this.yaxis.min) * this.vertScale;
+    },	
+	/**
+	 * function: drawGrid
+	 * 
+	 * parameters: none
+	 * 
+	 * description: draws the actual grid on the canvas
+	 */
+	drawGrid: function() {
+		var i;
+		
+		this.context.save();
+		this.context.clearRect(0, 0, this.canvasWidth, this.canvasHeight);
+		this.context.translate(this.chartOffset.left, this.chartOffset.top);
+
+		// draw background, if any
+		if (this.options.grid.backgroundColor != null) {
+			this.context.fillStyle = this.options.grid.backgroundColor;
+			this.context.fillRect(0, 0, this.chartWidth, this.chartHeight);
+		}
+
+		// draw colored areas
+		if (this.options.grid.coloredAreas) {
+			var areas = this.options.grid.coloredAreas;
+			if (Object.isFunction(areas)) {
+				areas = areas({ xmin: this.xaxis.min, xmax: this.xaxis.max, ymin: this.yaxis.min, ymax: this.yaxis.max });
+			}
+			
+			areas.each(function(a){
+				// clip
+				if (a.x1 == null || a.x1 < this.xaxis.min)
+					a.x1 = this.xaxis.min;
+				if (a.x2 == null || a.x2 > this.xaxis.max)
+					a.x2 = this.xaxis.max;
+				if (a.y1 == null || a.y1 < this.yaxis.min)
+					a.y1 = this.yaxis.min;
+				if (a.y2 == null || a.y2 > this.yaxis.max)
+					a.y2 = this.yaxis.max;
+
+				var tmp;
+				if (a.x1 > a.x2) {
+					tmp = a.x1;
+					a.x1 = a.x2;
+					a.x2 = tmp;
+				}
+				if (a.y1 > a.y2) {
+					tmp = a.y1;
+					a.y1 = a.y2;
+					a.y2 = tmp;
+				}
+
+				if (a.x1 >= this.xaxis.max || a.x2 <= this.xaxis.min || a.x1 == a.x2
+					|| a.y1 >= this.yaxis.max || a.y2 <= this.yaxis.min || a.y1 == a.y2)
+					return;
+
+				this.context.fillStyle = a.color || this.options.grid.coloredAreasColor;
+				this.context.fillRect(Math.floor(this.translateHoz(a.x1)), Math.floor(this.translateVert(a.y2)),
+							 Math.floor(this.translateHoz(a.x2) - this.translateHoz(a.x1)), Math.floor(this.translateVert(a.y1) - this.translateVert(a.y2)));				
+			}.bind(this));
+
+			
+		}
+		
+		// draw the inner grid
+		this.context.lineWidth = 1;
+		this.context.strokeStyle = this.options.grid.tickColor;
+		this.context.beginPath();
+		var v;
+		if (this.options.grid.drawXAxis) {
+			this.xaxis.ticks.each(function(aTick){
+				v = aTick.v;
+				if(v <= this.xaxis.min || v >= this.xaxis.max) {
+					return;
+				}
+				this.context.moveTo(Math.floor(this.translateHoz(v)) + this.context.lineWidth / 2, 0);
+				this.context.lineTo(Math.floor(this.translateHoz(v)) + this.context.lineWidth / 2, this.chartHeight);
+			}.bind(this));
+
+		}
+		
+		if (this.options.grid.drawYAxis) {
+			this.yaxis.ticks.each(function(aTick){
+				v = aTick.v;
+				if(v <= this.yaxis.min || v >= this.yaxis.max) {
+					return;
+				}
+				this.context.moveTo(0, Math.floor(this.translateVert(v)) + this.context.lineWidth / 2);
+				this.context.lineTo(this.chartWidth, Math.floor(this.translateVert(v)) + this.context.lineWidth / 2);
+			}.bind(this));
+			
+		}
+		this.context.stroke();
+		
+		if (this.options.grid.borderWidth) {
+			// draw border
+			this.context.lineWidth = this.options.grid.borderWidth;
+			this.context.strokeStyle = this.options.grid.color;
+			this.context.lineJoin = "round";
+			this.context.strokeRect(0, 0, this.chartWidth, this.chartHeight);
+			this.context.restore();
+		}
+	},
+	/**
+	 * function: insertLabels
+	 * 
+	 * parameters: none
+	 * 
+	 * description: inserts the label with proper spacing. Both on X and Y axis
+	 */
+	insertLabels: function() {
+		this.domObj.select(".tickLabels").invoke('remove');
+		
+		var i, tick;
+		var html = '<div class="tickLabels" style="font-size:smaller;color:' + this.options.grid.color + '">';
+		
+		// do the x-axis
+		this.xaxis.ticks.each(function(tick){
+			if (!tick.label || tick.v < this.xaxis.min || tick.v > this.xaxis.max)
+				return;
+			html += '<div style="position:absolute;top:' + (this.chartOffset.top + this.chartHeight + this.options.grid.labelMargin) + 'px;left:' + (this.chartOffset.left + this.translateHoz(tick.v) - this.xLabelBoxWidth/2) + 'px;width:' + this.xLabelBoxWidth + 'px;text-align:center" class="tickLabel">' + tick.label + "</div>";
+			
+		}.bind(this));
+		
+		// do the y-axis
+		this.yaxis.ticks.each(function(tick){
+			if (!tick.label || tick.v < this.yaxis.min || tick.v > this.yaxis.max)
+				return;
+			html += '<div id="ylabels" style="position:absolute;top:' + (this.chartOffset.top + this.translateVert(tick.v) - this.yLabelMaxHeight/2) + 'px;left:0;width:' + this.yLabelMaxWidth + 'px;text-align:right" class="tickLabel">' + tick.label + "</div>";
+		}.bind(this));
+
+		html += '</div>';
+		
+		this.domObj.insert(html);
+	},
+	/**
+	 * function: drawGraph
+	 * 
+	 * Paramters:
+	 * {Object} graphData
+	 * 
+	 * Description: given a graphData (series) this function calls a proper lower level method to draw it.
+	 */
+	drawGraph: function(graphData) {
+		if (graphData.lines.show || (!graphData.bars.show && !graphData.points.show))
+			this.drawGraphLines(graphData);
+		if (graphData.bars.show)
+			this.drawGraphBar(graphData);
+		if (graphData.points.show)
+			this.drawGraphPoints(graphData);
+	},
+	/**
+	 * function: plotLine
+	 * 
+	 * parameters:
+	 * {Object} data
+	 * {Object} offset
+	 * 
+	 * description: 
+	 * Helper function that plots a line based on the data provided
+	 */
+	plotLine: function(data, offset) {
+        var prev, cur = null, drawx = null, drawy = null;
+        
+        this.context.beginPath();
+        for (var i = 0; i < data.length; ++i) {
+            prev = cur;
+            cur = data[i];
+
+            if (prev == null || cur == null)
+                continue;
+            
+            var x1 = prev[0], y1 = prev[1],
+                x2 = cur[0], y2 = cur[1];
+
+            // clip with ymin
+            if (y1 <= y2 && y1 < this.yaxis.min) {
+                if (y2 < this.yaxis.min)
+                    continue;   // line segment is outside
+                // compute new intersection point
+                x1 = (this.yaxis.min - y1) / (y2 - y1) * (x2 - x1) + x1;
+                y1 = this.yaxis.min;
+            }
+            else if (y2 <= y1 && y2 < this.yaxis.min) {
+                if (y1 < this.yaxis.min)
+                    continue;
+                x2 = (this.yaxis.min - y1) / (y2 - y1) * (x2 - x1) + x1;
+                y2 = this.yaxis.min;
+            }
+
+            // clip with ymax
+            if (y1 >= y2 && y1 > this.yaxis.max) {
+                if (y2 > this.yaxis.max)
+                    continue;
+                x1 = (this.yaxis.max - y1) / (y2 - y1) * (x2 - x1) + x1;
+                y1 = this.yaxis.max;
+            }
+            else if (y2 >= y1 && y2 > this.yaxis.max) {
+                if (y1 > this.yaxis.max)
+                    continue;
+                x2 = (this.yaxis.max - y1) / (y2 - y1) * (x2 - x1) + x1;
+                y2 = this.yaxis.max;
+            }
+
+            // clip with xmin
+            if (x1 <= x2 && x1 < this.xaxis.min) {
+                if (x2 < this.xaxis.min)
+                    continue;
+                y1 = (this.xaxis.min - x1) / (x2 - x1) * (y2 - y1) + y1;
+                x1 = this.xaxis.min;
+            }
+            else if (x2 <= x1 && x2 < this.xaxis.min) {
+                if (x1 < this.xaxis.min)
+                    continue;
+                y2 = (this.xaxis.min - x1) / (x2 - x1) * (y2 - y1) + y1;
+                x2 = this.xaxis.min;
+            }
+
+            // clip with xmax
+            if (x1 >= x2 && x1 > this.xaxis.max) {
+                if (x2 > this.xaxis.max)
+                    continue;
+                y1 = (this.xaxis.max - x1) / (x2 - x1) * (y2 - y1) + y1;
+                x1 = this.xaxis.max;
+            }
+            else if (x2 >= x1 && x2 > this.xaxis.max) {
+                if (x1 > this.xaxis.max)
+                    continue;
+                y2 = (this.xaxis.max - x1) / (x2 - x1) * (y2 - y1) + y1;
+                x2 = this.xaxis.max;
+            }
+
+            if (drawx != this.translateHoz(x1) || drawy != this.translateVert(y1) + offset)
+                this.context.moveTo(this.translateHoz(x1), this.translateVert(y1) + offset);
+            
+            drawx = this.translateHoz(x2);
+            drawy = this.translateVert(y2) + offset;
+            this.context.lineTo(drawx, drawy);
+        }
+        this.context.stroke();
+    },
+	/**
+	 * function: plotLineArea
+	 * 
+	 * parameters:
+	 * {Object} data
+	 * 
+	 * description:
+	 * Helper functoin that plots a colored line graph. This function
+	 * takes the data nad then fill in the area on the graph properly
+	 */
+	plotLineArea: function(data) {
+        var prev, cur = null;
+        
+        var bottom = Math.min(Math.max(0, this.yaxis.min), this.yaxis.max);
+        var top, lastX = 0;
+
+        var areaOpen = false;
+        
+        for (var i = 0; i < data.length; ++i) {
+            prev = cur;
+            cur = data[i];
+
+            if (areaOpen && prev != null && cur == null) {
+                // close area
+                this.context.lineTo(this.translateHoz(lastX), this.translateVert(bottom));
+                this.context.fill();
+                areaOpen = false;
+                continue;
+            }
+
+            if (prev == null || cur == null)
+                continue;
+                
+            var x1 = prev[0], y1 = prev[1],
+                x2 = cur[0], y2 = cur[1];
+
+            // clip x values
+            
+            // clip with xmin
+            if (x1 <= x2 && x1 < this.xaxis.min) {
+                if (x2 < this.xaxis.min)
+                    continue;
+                y1 = (this.xaxis.min - x1) / (x2 - x1) * (y2 - y1) + y1;
+                x1 = this.xaxis.min;
+            }
+            else if (x2 <= x1 && x2 < this.xaxis.min) {
+                if (x1 < this.xaxis.min)
+                    continue;
+                y2 = (this.xaxis.min - x1) / (x2 - x1) * (y2 - y1) + y1;
+                x2 = this.xaxis.min;
+            }
+
+            // clip with xmax
+            if (x1 >= x2 && x1 > this.xaxis.max) {
+                if (x2 > this.xaxis.max)
+                    continue;
+                y1 = (this.xaxis.max - x1) / (x2 - x1) * (y2 - y1) + y1;
+                x1 = this.xaxis.max;
+            }
+            else if (x2 >= x1 && x2 > this.xaxis.max) {
+                if (x1 > this.xaxis.max)
+                    continue;
+                y2 = (this.xaxis.max - x1) / (x2 - x1) * (y2 - y1) + y1;
+                x2 = this.xaxis.max;
+            }
+
+            if (!areaOpen) {
+                // open area
+                this.context.beginPath();
+                this.context.moveTo(this.translateHoz(x1), this.translateVert(bottom));
+                areaOpen = true;
+            }
+            
+            // now first check the case where both is outside
+            if (y1 >= this.yaxis.max && y2 >= this.yaxis.max) {
+                this.context.lineTo(this.translateHoz(x1), this.translateVert(this.yaxis.max));
+                this.context.lineTo(this.translateHoz(x2), this.translateVert(this.yaxis.max));
+                continue;
+            }
+            else if (y1 <= this.yaxis.min && y2 <= this.yaxis.min) {
+                this.context.lineTo(this.translateHoz(x1), this.translateVert(this.yaxis.min));
+                this.context.lineTo(this.translateHoz(x2), this.translateVert(this.yaxis.min));
+                continue;
+            }
+            
+            var x1old = x1, x2old = x2;
+
+            // clip with ymin
+            if (y1 <= y2 && y1 < this.yaxis.min && y2 >= this.yaxis.min) {
+                x1 = (this.yaxis.min - y1) / (y2 - y1) * (x2 - x1) + x1;
+                y1 = this.yaxis.min;
+            }
+            else if (y2 <= y1 && y2 < this.yaxis.min && y1 >= this.yaxis.min) {
+                x2 = (this.yaxis.min - y1) / (y2 - y1) * (x2 - x1) + x1;
+                y2 = this.yaxis.min;
+            }
+
+            // clip with ymax
+            if (y1 >= y2 && y1 > this.yaxis.max && y2 <= this.yaxis.max) {
+                x1 = (this.yaxis.max - y1) / (y2 - y1) * (x2 - x1) + x1;
+                y1 = this.yaxis.max;
+            }
+            else if (y2 >= y1 && y2 > this.yaxis.max && y1 <= this.yaxis.max) {
+                x2 = (this.yaxis.max - y1) / (y2 - y1) * (x2 - x1) + x1;
+                y2 = this.yaxis.max;
+            }
+
+
+            // if the x value was changed we got a rectangle
+            // to fill
+            if (x1 != x1old) {
+                if (y1 <= this.yaxis.min)
+                    top = this.yaxis.min;
+                else
+                    top = this.yaxis.max;
+                
+                this.context.lineTo(this.translateHoz(x1old), this.translateVert(top));
+                this.context.lineTo(this.translateHoz(x1), this.translateVert(top));
+            }
+            
+            // fill the triangles
+            this.context.lineTo(this.translateHoz(x1), this.translateVert(y1));
+            this.context.lineTo(this.translateHoz(x2), this.translateVert(y2));
+
+            // fill the other rectangle if it's there
+            if (x2 != x2old) {
+                if (y2 <= this.yaxis.min)
+                    top = this.yaxis.min;
+                else
+                    top = this.yaxis.max;
+                
+                this.context.lineTo(this.translateHoz(x2old), this.translateVert(top));
+                this.context.lineTo(this.translateHoz(x2), this.translateVert(top));
+            }
+
+            lastX = Math.max(x2, x2old);
+        }
+
+        if (areaOpen) {
+            this.context.lineTo(this.translateHoz(lastX), this.translateVert(bottom));
+            this.context.fill();
+        }
+    },		
+	/**
+	 * function: drawGraphLines
+	 * 
+	 * parameters:
+	 * {Object} graphData
+	 * 
+	 * description:
+	 * Main function that daws the line graph. This function is called 
+	 * if <options> lines property is set to show or no other type of 
+	 * graph is specified. This function depends on <plotLineArea> and 
+	 * <plotLine> functions.
+	 */
+	drawGraphLines: function(graphData) {
+        this.context.save();
+        this.context.translate(this.chartOffset.left, this.chartOffset.top);
+        this.context.lineJoin = "round";
+
+        var lw = graphData.lines.lineWidth;
+        var sw = graphData.shadowSize;
+        // FIXME: consider another form of shadow when filling is turned on
+        if (sw > 0) {
+            // draw shadow in two steps
+            this.context.lineWidth = sw / 2;
+            this.context.strokeStyle = "rgba(0,0,0,0.1)";
+            this.plotLine(graphData.data, lw/2 + sw/2 + this.context.lineWidth/2);
+
+            this.context.lineWidth = sw / 2;
+            this.context.strokeStyle = "rgba(0,0,0,0.2)";
+            this.plotLine(graphData.data, lw/2 + this.context.lineWidth/2);
+        }
+
+        this.context.lineWidth = lw;
+        this.context.strokeStyle = graphData.color;
+        if (graphData.lines.fill) {
+            this.context.fillStyle = graphData.lines.fillColor != null ? graphData.lines.fillColor : this.parseColor(graphData.color).scale(null, null, null, 0.4).toString();
+            this.plotLineArea(graphData.data, 0);
+        }
+
+        this.plotLine(graphData.data, 0);
+        this.context.restore();
+    },
+	/**
+	 * function: plotPoints
+	 * 
+	 * parameters:
+	 * {Object} data
+	 * {Object} radius
+	 * {Object} fill
+	 * 
+	 * description:
+	 * Helper function that draws the point graph according to the data provided. Size of each 
+	 * point is provided by radius variable and fill specifies if points 
+	 * are filled
+	 */
+	plotPoints: function(data, radius, fill) {
+        for (var i = 0; i < data.length; ++i) {
+            if (data[i] == null)
+                continue;
+            
+            var x = data[i][0], y = data[i][1];
+            if (x < this.xaxis.min || x > this.xaxis.max || y < this.yaxis.min || y > this.yaxis.max)
+                continue;
+            
+            this.context.beginPath();
+            this.context.arc(this.translateHoz(x), this.translateVert(y), radius, 0, 2 * Math.PI, true);
+            if (fill)
+                this.context.fill();
+            this.context.stroke();
+        }
+    },
+	/**
+	 * function: plotPointShadows
+	 * 
+	 * parameters:
+	 * {Object} data
+	 * {Object} offset
+	 * {Object} radius
+	 * 
+	 * description: 
+	 * Helper function that draws the shadows for the points.
+	 */
+    plotPointShadows: function(data, offset, radius) {
+        for (var i = 0; i < data.length; ++i) {
+            if (data[i] == null)
+                continue;
+            
+            var x = data[i][0], y = data[i][1];
+            if (x < this.xaxis.min || x > this.xaxis.max || y < this.yaxis.min || y > this.yaxis.max)
+                continue;
+            this.context.beginPath();
+            this.context.arc(this.translateHoz(x), this.translateVert(y) + offset, radius, 0, Math.PI, false);
+            this.context.stroke();
+        }
+    },
+	/**
+	 * function: drawGraphPoints
+	 * 
+	 * paramters:
+	 * {Object} graphData
+	 * 
+	 * description:
+	 * Draws the point graph onto the canvas. This function depends on helper 
+	 * functions <plotPointShadows> and <plotPoints>
+	 */
+    drawGraphPoints: function(graphData) {
+       	this.context.save();
+        this.context.translate(this.chartOffset.left, this.chartOffset.top);
+
+        var lw = graphData.lines.lineWidth;
+        var sw = graphData.shadowSize;
+        if (sw > 0) {
+            // draw shadow in two steps
+            this.context.lineWidth = sw / 2;
+            this.context.strokeStyle = "rgba(0,0,0,0.1)";
+            this.plotPointShadows(graphData.data, sw/2 + this.context.lineWidth/2, graphData.points.radius);
+
+            this.context.lineWidth = sw / 2;
+            this.context.strokeStyle = "rgba(0,0,0,0.2)";
+            this.plotPointShadows(graphData.data, this.context.lineWidth/2, graphData.points.radius);
+        }
+
+        this.context.lineWidth = graphData.points.lineWidth;
+        this.context.strokeStyle = graphData.color;
+        this.context.fillStyle = graphData.points.fillColor != null ? graphData.points.fillColor : graphData.color;
+        this.plotPoints(graphData.data, graphData.points.radius, graphData.points.fill);
+        this.context.restore();
+    },
+	/**
+	 * function: preparePieData
+	 * 
+	 * parameters:
+	 * {Object} graphData
+	 * 
+	 * Description: 
+	 * Helper function that manipulates the given data stream so that it can 
+	 * be plotted as a Pie Chart
+	 */
+	preparePieData: function(graphData)
+	{
+		for(i = 0; i < graphData.length; i++)
+		{
+			var data = 0;
+			for(j = 0; j < graphData[i].data.length; j++){
+				data += parseInt(graphData[i].data[j][1]);
+			}
+			graphData[i].data = data;
+		}
+	},
+	/**
+	 * function: drawPieShadow
+	 * 
+	 * {Object} anchorX
+	 * {Object} anchorY
+	 * {Object} radius
+	 * 
+	 * description:
+	 * Helper function that draws a shadow for the Pie Chart. This just draws 
+	 * a circle with offset that simulates shadow. We do not give each piece 
+	 * of the pie an individual shadow.
+	 */
+	drawPieShadow: function(anchorX, anchorY, radius)
+	{
+		this.context.beginPath();
+		this.context.moveTo(anchorX, anchorY);
+		this.context.fillStyle = 'rgba(0,0,0,' + 0.1 + ')';
+		startAngle = 0;
+		endAngle = (Math.PI/180)*360;	
+		this.context.arc(anchorX + 2, anchorY +2, radius + (this.options.shadowSize/2), startAngle, endAngle, false);
+		this.context.fill();
+		this.context.closePath();
+	},
+	/**
+	 * function: drawPieGraph
+	 * 
+	 * parameters:
+	 * {Object} graphData
+	 * 
+	 * description: 
+	 * Draws the actual pie chart. This function depends on helper function 
+	 * <drawPieShadow> to draw the actual shadow
+	 */
+	drawPieGraph: function(graphData)
+	{
+		var sumData = 0;
+		var radius = 0;
+		var centerX = this.chartWidth/2;
+		var centerY = this.chartHeight/2;
+		var startAngle = 0;
+		var endAngle = 0;
+		var fontSize = this.options.pies.fontSize;
+		var labelWidth = this.options.pies.labelWidth;
+
+		//determine Pie Radius
+		if(!this.options.pies.autoScale)
+			radius = this.options.pies.radius;
+		else
+			radius = (this.chartHeight * 0.85)/2;
+
+		var labelRadius = radius * 1.05;
+
+		for(i = 0; i < graphData.length; i++)
+			sumData += graphData[i].data;
+
+		// used to adjust labels so that everything adds up to 100%
+		totalPct = 0;
+		
+		//lets draw the shadow first.. we don't need an individual shadow to every pie rather we just
+		//draw a circle underneath to simulate the shadow...
+		this.drawPieShadow(centerX, centerY, radius, 0, 0); 
+		
+		//lets draw the actual pie chart now.
+		graphData.each(function(gd, j){
+			var pct = gd.data / sumData;
+			startAngle = endAngle;
+			endAngle += pct * (2 * Math.PI);
+			var sliceMiddle = (endAngle - startAngle) / 2 + startAngle;
+			var labelX = centerX + Math.cos(sliceMiddle) * labelRadius;
+			var labelY = centerY + Math.sin(sliceMiddle) * labelRadius;
+			var anchorX = centerX;
+			var anchorY = centerY;
+			var textAlign = null;
+			var verticalAlign = null;
+			var left = 0;
+			var top = 0;
+			
+			//draw pie:
+			//drawing pie	
+			this.context.beginPath();
+			this.context.moveTo(anchorX, anchorY);				
+			this.context.arc(anchorX, anchorY, radius, startAngle, endAngle, false);
+			this.context.closePath();
+			this.context.fillStyle = this.parseColor(gd.color).scale(null, null, null, this.options.pies.fillOpacity).toString();
+
+			if(this.options.pies.fill)	{ this.context.fill(); }
+
+			// drawing labels
+			if (sliceMiddle <= 0.25 * (2 * Math.PI)) 
+			{
+				// text on top and align left
+				textAlign = "left";
+				verticalAlign = "top";
+				left = labelX;
+				top = labelY + fontSize;
+			}
+			else if (sliceMiddle > 0.25 * (2 * Math.PI) && sliceMiddle <= 0.5 * (2 * Math.PI)) 
+			{
+				// text on bottom and align left
+				textAlign = "left";
+				verticalAlign = "bottom";
+				left = labelX - labelWidth;
+				top = labelY;
+			}
+			else if (sliceMiddle > 0.5 * (2 * Math.PI) && sliceMiddle <= 0.75 * (2 * Math.PI)) 
+			{
+				// text on bottom and align right
+				textAlign = "right";
+				verticalAlign = "bottom";
+				left = labelX - labelWidth;
+				top = labelY - fontSize;
+			}
+			else 
+			{
+				// text on top and align right
+				textAlign = "right";
+				verticalAlign = "bottom";
+				left = labelX;
+				top = labelY - fontSize;
+			}
+
+			left = left + "px";
+			top = top + "px";
+			var textVal = Math.round(pct * 100);
+
+			if (j == graphData.length - 1) {
+				if (textVal + totalPct < 100) {
+					textVal = textVal + 1;
+				} else if (textVal + totalPct > 100) {
+					textVal = textVal - 1;
+				};
+			}
+
+			var html = "<div style=\"position: absolute;zindex:11; width:" + labelWidth + "px;fontSize:" + fontSize + "px;overflow:hidden;top:"+ top + ";left:"+ left + ";textAlign:" + textAlign + ";verticalAlign:" + verticalAlign +"\">" +  textVal + "%</div>";
+			//$(html).appendTo(target);
+			this.domObj.insert(html);
+
+			totalPct = totalPct + textVal;			
+		}.bind(this));
+		
+	},
+	/**
+	 * function: drawBarGraph
+	 * 
+	 * parameters:
+	 * {Object} graphData
+	 * {Object} barDataRange
+	 * 
+	 * description: 
+	 * Goes through each series in graphdata and passes it onto <drawBarGraphs> function
+	 */
+	drawBarGraph: function(graphData, barDataRange)
+	{
+		graphData.each(function(gd, i){
+			this.drawGraphBars(gd, i, graphData.size(), barDataRange);
+		}.bind(this));
+	},
+	/**
+	 * function: drawGraphBar
+	 * 
+	 * parameters:
+	 * {Object} graphData
+	 * 
+	 * description:
+	 * This function is called when an individual series in GraphData is bar graph and plots it
+	 */
+	drawGraphBar: function(graphData)
+	{
+		this.drawGraphBars(graphData, 0, this.graphData.length, this.barDataRange);			
+	},	
+	/**
+	 * function: plotBars
+	 * 
+	 * parameters:
+	 * {Object} graphData
+	 * {Object} data
+	 * {Object} barWidth
+	 * {Object} offset
+	 * {Object} fill
+	 * {Object} counter
+	 * {Object} total
+	 * {Object} barDataRange
+	 * 
+	 * description: 
+	 * Helper function that draws the bar graph based on data.
+	 */
+	plotBars: function(graphData, data, barWidth, offset, fill,counter, total, barDataRange) {
+		var shift = 0;
+		
+		if(total % 2 == 0)
+		{
+			shift = (1 + ((counter  - total /2 ) - 1)) * barWidth;
+		}
+		else
+		{
+			var interval = 0.5;			
+			if(counter == (total/2 - interval )) {
+				shift = - barWidth * interval;
+			}
+			else {
+				shift = (interval + (counter  - Math.round(total/2))) * barWidth;
+			}
+		}
+
+		var rangeData = [];
+		data.each(function(d){
+			if(!d) return;
+			
+			var x = d[0], y = d[1];
+			var drawLeft = true, drawTop = true, drawRight = true;
+			var left = x + shift, right = x + barWidth + shift, bottom = 0, top = y;
+			var rangeDataPoint = {};
+			rangeDataPoint.left = left;
+			rangeDataPoint.right = right;
+			rangeDataPoint.value = top;
+			rangeData.push(rangeDataPoint);
+
+			if (right < this.xaxis.min || left > this.xaxis.max || top < this.yaxis.min || bottom > this.yaxis.max)
+				return;
+
+			// clip
+			if (left < this.xaxis.min) {
+				left = this.xaxis.min;
+				drawLeft = false;
+			}
+
+			if (right > this.xaxis.max) {
+				right = this.xaxis.max;
+				drawRight = false;
+			}
+
+			if (bottom < this.yaxis.min)
+				bottom = this.yaxis.min;
+
+			if (top > this.yaxis.max) {
+				top = this.yaxis.max;
+				drawTop = false;
+			}
+			
+			if(graphData.bars.showShadow && graphData.shadowSize > 0)
+				this.plotShadowOutline(graphData, this.context.strokeStyle, left, bottom, top, right, drawLeft, drawRight, drawTop);
+				
+			// fill the bar
+			if (fill) {
+				this.context.beginPath();
+				this.context.moveTo(this.translateHoz(left), this.translateVert(bottom) + offset);
+				this.context.lineTo(this.translateHoz(left), this.translateVert(top) + offset);
+				this.context.lineTo(this.translateHoz(right), this.translateVert(top) + offset);
+				this.context.lineTo(this.translateHoz(right), this.translateVert(bottom) + offset);
+				this.context.fill();
+			}
+
+			// draw outline
+			if (drawLeft || drawRight || drawTop) {
+				this.context.beginPath();
+				this.context.moveTo(this.translateHoz(left), this.translateVert(bottom) + offset);
+				if (drawLeft)
+					this.context.lineTo(this.translateHoz(left), this.translateVert(top) + offset);
+				else
+					this.context.moveTo(this.translateHoz(left), this.translateVert(top) + offset);
+
+				if (drawTop)
+					this.context.lineTo(this.translateHoz(right), this.translateVert(top) + offset);
+				else
+					this.context.moveTo(this.translateHoz(right), this.translateVert(top) + offset);
+				if (drawRight)
+					this.context.lineTo(this.translateHoz(right), this.translateVert(bottom) + offset);
+				else
+					this.context.moveTo(this.translateHoz(right), this.translateVert(bottom) + offset);
+				this.context.stroke();
+			}
+		}.bind(this));
+		
+		barDataRange.push(rangeData);
+	},
+	/**
+	 * function: plotShadowOutline
+	 * 
+	 * parameters:
+	 * {Object} graphData
+	 * {Object} orgStrokeStyle
+	 * {Object} left
+	 * {Object} bottom
+	 * {Object} top
+	 * {Object} right
+	 * {Object} drawLeft
+	 * {Object} drawRight
+	 * {Object} drawTop
+	 * 
+	 * description:
+	 * Helper function that draws a outline simulating shadow for bar chart
+	 */
+	plotShadowOutline: function(graphData, orgStrokeStyle, left, bottom, top, right, drawLeft, drawRight, drawTop)
+	{
+		var orgOpac = 0.3;
+		
+		for(var n = 1; n <= this.options.shadowSize/2; n++)
+		{
+			var opac = orgOpac * n;
+			this.context.beginPath();
+			this.context.strokeStyle = "rgba(0,0,0," + opac + ")";
+
+			this.context.moveTo(this.translateHoz(left) + n, this.translateVert(bottom));
+
+			if(drawLeft)
+				this.context.lineTo(this.translateHoz(left) + n, this.translateVert(top) - n);
+			else
+				this.context.moveTo(this.translateHoz(left) + n, this.translateVert(top) - n);
+
+			if(drawTop)	
+				this.context.lineTo(this.translateHoz(right) + n, this.translateVert(top) - n);
+			else
+				this.context.moveTo(this.translateHoz(right) + n, this.translateVert(top) - n);
+
+			if(drawRight)
+				this.context.lineTo(this.translateHoz(right) + n, this.translateVert(bottom));
+			else
+				this.context.lineTo(this.translateHoz(right) + n, this.translateVert(bottom));
+
+			this.context.stroke();
+			this.context.closePath();
+		}
+
+		this.context.strokeStyle = orgStrokeStyle;
+	},
+	/**
+	 * function: drawGraphBars
+	 * 
+	 * parameters:
+	 * {Object} graphData 
+	 * {Object} counter
+	 * {Object} total
+	 * {Object} barDataRange
+	 * 
+	 * description:
+	 * Draws the actual bar graphs. Calls <plotBars> to draw the individual bar
+	 */
+	drawGraphBars: function(graphData, counter, total, barDataRange){
+		this.context.save();
+		this.context.translate(this.chartOffset.left, this.chartOffset.top);
+		this.context.lineJoin = "round";
+
+		var bw = graphData.bars.barWidth;
+		var lw = Math.min(graphData.bars.lineWidth, bw);
+
+
+		this.context.lineWidth = lw;
+		this.context.strokeStyle = graphData.color;
+		if (graphData.bars.fill) {
+			this.context.fillStyle = graphData.bars.fillColor != null ? graphData.bars.fillColor : this.parseColor(graphData.color).scale(null, null, null, this.options.bars.fillOpacity).toString();
+		}
+		this.plotBars(graphData, graphData.data, bw, 0, graphData.bars.fill, counter, total, barDataRange);
+		this.context.restore();
+	},
+	/**
+	 * function: insertLegend
+	 * 
+	 * description:
+	 * inserts legend onto the graph. *legend: {show: true}* must be set in <options> 
+	 * for for this to work.
+	 */
+	insertLegend: function() {
+		this.domObj.select(".legend").invoke('remove');
+
+		if (!this.options.legend.show)
+			return;
+		
+		var fragments = [];
+		var rowStarted = false;
+		this.graphData.each(function(gd, index){
+			if(!gd.label) {
+				return;
+			}
+			if(index % this.options.legend.noColumns == 0) {
+				if(rowStarted) {
+					fragments.push('</tr>');
+				}
+				fragments.push('<tr>');
+				rowStarted = true;
+			}
+			var label = gd.label;
+			if(this.options.legend.labelFormatter != null) {
+				label = this.options.legend.labelFormatter(label);
+			}
+			
+			fragments.push(
+				'<td class="legendColorBox"><div style="border:1px solid ' + this.options.legend.labelBoxBorderColor + ';padding:1px"><div style="width:14px;height:10px;background-color:' + gd.color + ';overflow:hidden"></div></div></td>' +
+				'<td class="legendLabel">' + label + '</td>');
+			
+		}.bind(this));
+
+		if (rowStarted)
+			fragments.push('</tr>');
+		
+		if(fragments.length > 0){
+			var table = '<table style="font-size:smaller;color:' + this.options.grid.color + '">' + fragments.join("") + '</table>';
+			if($(this.options.legend.container) != null){
+				$(this.options.legend.container).insert(table);
+			}else{
+				var pos = '';
+				var p = this.options.legend.position, m = this.options.legend.margin;
+				
+				if(p.charAt(0) == 'n') pos += 'top:' + (m + this.chartOffset.top) + 'px;';
+				else if(p.charAt(0) == 's') pos += 'bottom:' + (m + this.chartOffset.bottom) + 'px;';					
+				if(p.charAt(1) == 'e') pos += 'right:' + (m + this.chartOffset.right) + 'px;';
+				else if(p.charAt(1) == 'w') pos += 'left:' + (m + this.chartOffset.bottom) + 'px;';
+				var div = this.domObj.insert('<div class="ProtoChart-legend" style="border: 1px solid '+this.options.legend.borderColor+'; position:absolute;z-index:2;' + pos +'">' + table + '</div>').getElementsBySelector('div.ProtoChart-legend').first();
+				
+				if(this.options.legend.backgroundOpacity != 0.0){
+					var c = this.options.legend.backgroundColor;
+					if(c == null){
+						var tmp = (this.options.grid.backgroundColor != null) ? this.options.grid.backgroundColor : this.extractColor(div);
+						c = this.parseColor(tmp).adjust(null, null, null, 1).toString();
+					}
+					this.domObj.insert('<div class="ProtoChart-legend-bg" style="position:absolute;width:' + div.getWidth() + 'px;height:' + div.getHeight() + 'px;' + pos +'background-color:' + c + ';"> </div>').select('div.ProtoChart-legend-bg').first().setStyle({
+						'opacity': this.options.legend.backgroundOpacity
+					});						
+				}
+			}
+		}
+	},
+	/**
+	 * Function: onMouseMove
+	 * 
+	 * parameters:
+	 * event: {Object} ev
+	 * 
+	 * Description:
+	 * Called whenever the mouse is moved on the graph. This takes care of the mousetracking.
+	 * This event also fires <ProtoChart:mousemove> event, which gets current position of the 
+	 * mouse as a parameters. 
+	 */
+	onMouseMove: function(ev) {
+		var e = ev || window.event;
+		if (e.pageX == null && e.clientX != null) {
+			var de = document.documentElement, b = $(document.body);
+			this.lastMousePos.pageX = e.clientX + (de && de.scrollLeft || b.scrollLeft || 0);
+			this.lastMousePos.pageY = e.clientY + (de && de.scrollTop || b.scrollTop || 0);
+		}
+		else {
+			this.lastMousePos.pageX = e.pageX;
+			this.lastMousePos.pageY = e.pageY;
+		}
+		
+		var offset = this.overlay.cumulativeOffset();
+		var pos = {
+			x: this.xaxis.min + (e.pageX - offset.left - this.chartOffset.left) / this.hozScale,
+			y: this.yaxis.max - (e.pageY - offset.top - this.chartOffset.top) / this.vertScale
+		};
+		
+		if(this.options.mouse.track && this.selectionInterval == null) {
+			this.hit(ev, pos);
+		}
+		this.domObj.fire("ProtoChart:mousemove", [ pos ]);
+	},
+	/**
+	 * Function: onMouseDown
+	 * 
+	 * Parameters:
+	 * Event - {Object} e
+	 * 
+	 * Description:
+	 * Called whenever the mouse is clicked.
+	 */
+	onMouseDown: function(e) {
+		if (e.which != 1)  // only accept left-click
+			return;
+		
+		document.body.focus();
+
+		if (document.onselectstart !== undefined && this.workarounds.onselectstart == null) {
+			this.workarounds.onselectstart = document.onselectstart;
+			document.onselectstart = function () { return false; };
+		}
+		if (document.ondrag !== undefined && this.workarounds.ondrag == null) {
+			this.workarounds.ondrag = document.ondrag;
+			document.ondrag = function () { return false; };
+		}
+		
+		this.setSelectionPos(this.selection.first, e);
+			
+		if (this.selectionInterval != null)
+			clearInterval(this.selectionInterval);
+		this.lastMousePos.pageX = null;
+		this.selectionInterval = setInterval(this.updateSelectionOnMouseMove.bind(this), 200);
+
+		this.overlay.observe("mouseup", this.onSelectionMouseUp.bind(this));
+	},
+	/**
+	 * Function: onClick
+	 * parameters:
+	 * Event - {Object} e
+	 * Description: 
+	 * Handles the "click" event on the chart. This function fires <ProtoChart:plotclick> event. If
+	 * <options.allowDataClick> is enabled then it also fires <ProtoChart:dataclick> event which gives
+	 * you access to exact data point where user clicked.
+	 */
+	onClick: function(e) {
+		if (this.ignoreClick) {
+			this.ignoreClick = false;
+			return;
+		}
+		var offset = this.overlay.cumulativeOffset(); 
+		var pos ={
+			x: this.xaxis.min + (e.pageX - offset.left - this.chartOffset.left) / this.hozScale,
+			y: this.yaxis.max - (e.pageY - offset.top - this.chartOffset.top) / this.vertScale
+		};
+		this.domObj.fire("ProtoChart:plotclick", [ pos ]);
+
+		if(this.options.allowDataClick)
+		{
+			var dataPoint = {};
+			if(this.options.points.show)
+			{
+				dataPoint = this.getDataClickPoint(pos, this.options);
+				this.domObj.fire("ProtoChart:dataclick", [dataPoint]);
+			}
+			else if(this.options.lines.show && this.options.points.show)
+			{
+				dataPoint = this.getDataClickPoint(pos, this.options);
+				this.domObj.fire("ProtoChart:dataclick", [dataPoint]);
+			}
+			else if(this.options.bars.show)
+			{
+				if(this.barDataRange.length > 0)
+				{
+					dataPoint = this.getDataClickPoint(pos, this.options, this.barDataRange);
+					this.domObj.fire("ProtoChart:dataclick", [dataPoint]);
+				}
+			}
+		}
+	},
+	/**
+	 * Internal function used by onClick method.
+	 */
+	getDataClickPoint: function(pos, options, barDataRange)
+	{
+		pos.x = parseInt(pos.x);
+		pos.y = parseInt(pos.y);
+		var yClick = pos.y.toFixed(0);
+		var dataVal = {};
+
+		dataVal.position = pos;
+		dataVal.value = '';
+
+		if(options.points.show)
+		{
+			this.graphData.each(function(gd){
+				var temp = gd.data;
+				var xClick = parseInt(pos.x.toFixed(0));
+				if(xClick < 0) { xClick = 0; }
+				if(temp[xClick] && yClick >= temp[xClick][1] - (this.options.points.radius * 10) && yClick <= temp[xClick][1] + (this.options.points.radius * 10)) {
+					dataVal.value = temp[xClick][1];
+					throw $break;
+				}
+				
+			}.bind(this));
+		}
+		else if(options.bars.show)
+		{
+			xClick = pos.x;
+			this.barDataRange.each(function(barData){
+				barData.each(function(data){
+					var temp = data;
+					if(xClick > temp.left && xClick < temp.right) {
+						dataVal.value = temp.value;
+						throw $break;
+					}
+				}.bind(this));
+			}.bind(this));
+
+		}
+
+		return dataVal;
+	},
+	/**
+	 * Function: triggerSelectedEvent
+	 * 
+	 * Description:
+	 * Internal function called when a selection on the graph is made. This function
+	 * fires <ProtoChart:selected> event which has a parameter representing the selection
+	 * {
+	 * 	x1: {int}, y1: {int},
+	 * 	x2: {int}, y2: {int}
+	 * }
+	 */
+	triggerSelectedEvent: function() {
+		var x1, x2, y1, y2;
+		if (this.selection.first.x <= this.selection.second.x) {
+			x1 = this.selection.first.x;
+			x2 = this.selection.second.x;
+		}
+		else {
+			x1 = this.selection.second.x;
+			x2 = this.selection.first.x;
+		}
+
+		if (this.selection.first.y >= this.selection.second.y) {
+			y1 = this.selection.first.y;
+			y2 = this.selection.second.y;
+		}
+		else {
+			y1 = this.selection.second.y;
+			y2 = this.selection.first.y;
+		}
+		
+		x1 = this.xaxis.min + x1 / this.hozScale;
+		x2 = this.xaxis.min + x2 / this.hozScale;
+
+		y1 = this.yaxis.max - y1 / this.vertScale;
+		y2 = this.yaxis.max - y2 / this.vertScale;
+
+		this.domObj.fire("ProtoChart:selected", [ { x1: x1, y1: y1, x2: x2, y2: y2 } ]);
+	},
+	/**
+	 * Internal function
+	 */
+	onSelectionMouseUp: function(e) {
+		if (document.onselectstart !== undefined)
+			document.onselectstart = this.workarounds.onselectstart;
+		if (document.ondrag !== undefined)
+			document.ondrag = this.workarounds.ondrag;
+		
+		if (this.selectionInterval != null) {
+			clearInterval(this.selectionInterval);
+			this.selectionInterval = null;
+		}
+
+		this.setSelectionPos(this.selection.second, e);
+		this.clearSelection();
+		if (!this.selectionIsSane() || e.which != 1)
+			return false;
+		
+		this.drawSelection();
+		this.triggerSelectedEvent();
+		this.ignoreClick = true;
+
+		return false;
+	},
+	setSelectionPos: function(pos, e) {
+		var offset = $(this.overlay).cumulativeOffset();
+		if (this.options.selection.mode == "y") {
+			if (pos == this.selection.first)
+				pos.x = 0;
+			else
+				pos.x = this.chartWidth;
+		}
+		else {
+			pos.x = e.pageX - offset.left - this.chartOffset.left;
+			pos.x = Math.min(Math.max(0, pos.x), this.chartWidth);
+		}
+
+		if (this.options.selection.mode == "x") {
+			if (pos == this.selection.first)
+				pos.y = 0;
+			else
+				pos.y = this.chartHeight;
+		}
+		else {
+			pos.y = e.pageY - offset.top - this.chartOffset.top;
+			pos.y = Math.min(Math.max(0, pos.y), this.chartHeight);
+		}
+	},
+	updateSelectionOnMouseMove: function() {
+		if (this.lastMousePos.pageX == null)
+			return;
+		
+		this.setSelectionPos(this.selection.second, this.lastMousePos);
+		this.clearSelection();
+		if (this.selectionIsSane())
+			this.drawSelection();
+	},
+	clearSelection: function() {
+		if (this.prevSelection == null)
+			return;
+
+		var x = Math.min(this.prevSelection.first.x, this.prevSelection.second.x),
+			y = Math.min(this.prevSelection.first.y, this.prevSelection.second.y),
+			w = Math.abs(this.prevSelection.second.x - this.prevSelection.first.x),
+			h = Math.abs(this.prevSelection.second.y - this.prevSelection.first.y);
+		
+		this.overlayContext.clearRect(x + this.chartOffset.left - this.overlayContext.lineWidth,
+					   		y + this.chartOffset.top - this.overlayContext.lineWidth,
+					   		w + this.overlayContext.lineWidth*2,
+					   		h + this.overlayContext.lineWidth*2);
+		
+		this.prevSelection = null;
+	},
+	/**
+	 * Function: setSelection
+	 * 
+	 * Parameters:
+	 * Area - {Object} area represented as a range like: {x1: 3, y1: 3, x2: 4, y2: 8}
+	 * 
+	 * Description: 
+	 * Sets the current graph selection to the provided range. Calls <drawSelection> and 
+	 * <triggerSelectedEvent> functions internally.
+	 */
+	setSelection: function(area) {
+		this.clearSelection();
+		
+		if (this.options.selection.mode == "x") {
+			this.selection.first.y = 0;
+			this.selection.second.y = this.chartHeight;
+		}
+		else {
+			this.selection.first.y = (this.yaxis.max - area.y1) * this.vertScale;
+			this.selection.second.y = (this.yaxis.max - area.y2) * this.vertScale;
+		}
+		if (this.options.selection.mode == "y") {
+			this.selection.first.x = 0;
+			this.selection.second.x = this.chartWidth;
+		}
+		else {
+			this.selection.first.x = (area.x1 - this.xaxis.min) * this.hozScale;
+			this.selection.second.x = (area.x2 - this.xaxis.min) * this.hozScale;
+		}
+
+		this.drawSelection();
+		this.triggerSelectedEvent();
+	},
+	/**
+	 * Function: drawSelection
+	 * Description: Internal function called to draw the selection made on the graph. 
+	 */
+	drawSelection: function() {
+		if (this.prevSelection != null &&
+			this.selection.first.x == this.prevSelection.first.x &&
+			this.selection.first.y == this.prevSelection.first.y && 
+			this.selection.second.x == this.prevSelection.second.x &&
+			this.selection.second.y == this.prevSelection.second.y)
+		{
+			return;	
+		}
+		
+		this.overlayContext.strokeStyle = this.parseColor(this.options.selection.color).scale(null, null, null, 0.8).toString();
+		this.overlayContext.lineWidth = 1;
+		this.context.lineJoin = "round";
+		this.overlayContext.fillStyle = this.parseColor(this.options.selection.color).scale(null, null, null, 0.4).toString();
+
+		this.prevSelection = { first:  { x: this.selection.first.x,
+									y: this.selection.first.y },
+						  second: { x: this.selection.second.x,
+									y: this.selection.second.y } };
+
+		var x = Math.min(this.selection.first.x, this.selection.second.x),
+			y = Math.min(this.selection.first.y, this.selection.second.y),
+			w = Math.abs(this.selection.second.x - this.selection.first.x),
+			h = Math.abs(this.selection.second.y - this.selection.first.y);
+		
+		this.overlayContext.fillRect(x + this.chartOffset.left, y + this.chartOffset.top, w, h);
+		this.overlayContext.strokeRect(x + this.chartOffset.left, y + this.chartOffset.top, w, h);
+	},
+	/**
+	 * Internal function
+	 */
+	selectionIsSane: function() {
+		var minSize = 5;
+		return Math.abs(this.selection.second.x - this.selection.first.x) >= minSize &&
+			Math.abs(this.selection.second.y - this.selection.first.y) >= minSize;
+	},
+	/**
+	 * Internal function that formats the track. This is the format the text is shown when mouse
+	 * tracking is enabled.
+	 */
+	defaultTrackFormatter: function(val)
+	{
+		return '['+val.x+', '+val.y+']';
+	},
+	/**
+	 * Function: clearHit
+	 */
+	clearHit: function(){
+		if(this.prevHit){
+			this.overlayContext.clearRect(
+				this.translateHoz(this.prevHit.x) + this.chartOffset.left - this.options.mouse.radius*2,
+				this.translateVert(this.prevHit.y) + this.chartOffset.top - this.options.mouse.radius*2,
+				this.options.mouse.radius*3 + this.options.points.lineWidth*3, 
+				this.options.mouse.radius*3 + this.options.points.lineWidth*3
+			);
+			this.prevHit = null;
+		}		
+	},	
+	/**
+	 * Function: hit
+	 * 
+	 * Parameters: 
+	 * 	event - {Object} event object
+	 * 	mouse - {Object} mouse object that is used to keep track of mouse movement
+	 * 
+	 * Description:
+	 * 	If hit occurs this function will fire a ProtoChart:hit event.
+	 */
+	hit: function(event, mouse){	
+		/**
+		 * Nearest data element.
+		 */
+		var n = {
+			dist:Number.MAX_VALUE,
+			x:null,
+			y:null,
+			mouse:null
+		};
+		
+		
+		for(var i = 0, data, xsens, ysens; i < this.graphData.length; i++){
+			if(!this.graphData[i].mouse.track) continue;
+			data = this.graphData[i].data;				
+			xsens = (this.hozScale*this.graphData[i].mouse.sensibility);
+			ysens = (this.vertScale*this.graphData[i].mouse.sensibility);
+			for(var j = 0, xabs, yabs; j < data.length; j++){
+				xabs = this.hozScale*Math.abs(data[j][0] - mouse.x);
+				yabs = this.vertScale*Math.abs(data[j][1] - mouse.y);
+				
+				if(xabs < xsens && yabs < ysens && (xabs+yabs) < n.dist){
+					n.dist = (xabs+yabs);
+					n.x = data[j][0];
+					n.y = data[j][1];
+					n.mouse = this.graphData[i].mouse;
+				}
+			}
+		}
+		
+		if(n.mouse && n.mouse.track && !this.prevHit || (this.prevHit && n.x != this.prevHit.x && n.y != this.prevHit.y)){
+			var el = this.domObj.select('.'+this.options.mouse.clsName).first();
+			if(!el){
+				var pos = '', p = this.options.mouse.position, m = this.options.mouse.margin;					
+				if(p.charAt(0) == 'n') pos += 'top:' + (m + this.chartOffset.top) + 'px;';
+				else if(p.charAt(0) == 's') pos += 'bottom:' + (m + this.chartOffset.bottom) + 'px;';					
+				if(p.charAt(1) == 'e') pos += 'right:' + (m + this.chartOffset.right) + 'px;';
+				else if(p.charAt(1) == 'w') pos += 'left:' + (m + this.chartOffset.bottom) + 'px;';
+				
+				this.domObj.insert('<div class="'+this.options.mouse.clsName+'" style="display:none;position:absolute;'+pos+'"></div>');
+				return;
+			}
+			if(n.x !== null && n.y !== null){
+				el.setStyle({display:'block'});					
+				
+				this.clearHit();
+				if(n.mouse.lineColor != null){
+					this.overlayContext.save();
+					this.overlayContext.translate(this.chartOffset.left, this.chartOffset.top);
+					this.overlayContext.lineWidth = this.options.points.lineWidth;
+					this.overlayContext.strokeStyle = n.mouse.lineColor;
+					this.overlayContext.fillStyle = '#ffffff';
+					this.overlayContext.beginPath();
+					
+					
+					this.overlayContext.arc(this.translateHoz(n.x), this.translateVert(n.y), this.options.mouse.radius, 0, 2 * Math.PI, true);
+					this.overlayContext.fill();
+					this.overlayContext.stroke();
+					this.overlayContext.restore();
+				} 
+				this.prevHit = n;
+								
+				var decimals = n.mouse.trackDecimals;
+				if(decimals == null || decimals < 0) decimals = 0;
+				if(!this.options.mouse.fixedPosition)
+				{
+					el.setStyle({
+						left: (this.translateHoz(n.x) + this.options.mouse.radius + 10) + "px",
+						top: (this.translateVert(n.y) + this.options.mouse.radius + 10) + "px"
+					});
+				}
+				el.innerHTML = n.mouse.trackFormatter({x: n.x.toFixed(decimals), y: n.y.toFixed(decimals)});
+				this.domObj.fire( 'ProtoChart:hit', [n] )					
+			}else if(this.options.prevHit){
+				el.setStyle({display:'none'});
+				this.clearHit();
+			}
+		}
+	},	
+	/**
+	 * Internal function
+	 */
+	floorInBase: function(n, base) {
+        return base * Math.floor(n / base);
+    },	
+	/**
+	 * Function: extractColor
+	 * 
+	 * Parameters:
+	 * 		element - HTML element or ID of an HTML element
+	 * 
+	 * Returns: 
+	 * 		color in string format
+	 */
+	extractColor: function(element)
+	{
+		var color;
+		do
+		{
+			color = $(element).getStyle('background-color').toLowerCase();
+			if(color  != '' && color != 'transparent')
+			{
+				break;
+			}
+			element = element.up(0); //or else just get the parent ....
+		} while(element.nodeName.toLowerCase() != 'body');
+		
+		//safari fix
+		if(color == 'rgba(0, 0, 0, 0)') 
+			return 'transparent';
+		return color;
+	},
+	/**
+	 * Function: parseColor
+	 * 
+	 * Parameters: 
+	 * 		str - color string in different formats
+	 * 
+	 * Returns:
+	 * 		a Proto.Color Object - use toString() function to retreive the color in rgba/rgb format
+	 */
+	parseColor: function(str)
+	{
+		var result;
+	
+		/**
+		 * rgb(num,num,num)
+		 */
+		if((result = /rgb\(\s*([0-9]{1,3})\s*,\s*([0-9]{1,3})\s*,\s*([0-9]{1,3})\s*\)/.exec(str)))
+			return new Proto.Color(parseInt(result[1]), parseInt(result[2]), parseInt(result[3]));
+	
+		/**
+		 * rgba(num,num,num,num)
+		 */
+		if((result = /rgba\(\s*([0-9]{1,3})\s*,\s*([0-9]{1,3})\s*,\s*([0-9]{1,3})\s*,\s*([0-9]+(?:\.[0-9]+)?)\s*\)/.exec(str)))
+			return new Proto.Color(parseInt(result[1]), parseInt(result[2]), parseInt(result[3]), parseFloat(result[4]));
+			
+		/**
+		 * rgb(num%,num%,num%)
+		 */
+		if((result = /rgb\(\s*([0-9]+(?:\.[0-9]+)?)\%\s*,\s*([0-9]+(?:\.[0-9]+)?)\%\s*,\s*([0-9]+(?:\.[0-9]+)?)\%\s*\)/.exec(str)))
+			return new Proto.Color(parseFloat(result[1])*2.55, parseFloat(result[2])*2.55, parseFloat(result[3])*2.55);
+	
+		/**
+		 * rgba(num%,num%,num%,num)
+		 */
+		if((result = /rgba\(\s*([0-9]+(?:\.[0-9]+)?)\%\s*,\s*([0-9]+(?:\.[0-9]+)?)\%\s*,\s*([0-9]+(?:\.[0-9]+)?)\%\s*,\s*([0-9]+(?:\.[0-9]+)?)\s*\)/.exec(str)))
+			return new Proto.Color(parseFloat(result[1])*2.55, parseFloat(result[2])*2.55, parseFloat(result[3])*2.55, parseFloat(result[4]));
+			
+		/**
+		 * #a0b1c2
+		 */
+		if((result = /#([a-fA-F0-9]{2})([a-fA-F0-9]{2})([a-fA-F0-9]{2})/.exec(str)))
+			return new Proto.Color(parseInt(result[1],16), parseInt(result[2],16), parseInt(result[3],16));
+	
+		/**
+		 * #fff
+		 */
+		if((result = /#([a-fA-F0-9])([a-fA-F0-9])([a-fA-F0-9])/.exec(str)))
+			return new Proto.Color(parseInt(result[1]+result[1],16), parseInt(result[2]+result[2],16), parseInt(result[3]+result[3],16));
+
+		/**
+		 * Otherwise, check if user wants transparent .. or we just return a standard color;
+		 */
+		var name = str.strip().toLowerCase();
+		if(name == 'transparent'){
+			return new Proto.Color(255, 255, 255, 0);
+		}
+
+		return new Proto.Color(100,100,100, 1);
+					
+	}		
+});
+
+if(!Proto) var Proto = {};
+
+/**
+ * Class: Proto.Color
+ * 
+ * Helper class that manipulates colors using RGBA values. 
+ * 
+ */
+
+Proto.Color = Class.create({
+	initialize: function(r, g, b, a) {
+		this.rgba = ['r', 'g', 'b', 'a'];
+		var x = 4;
+		while(-1<--x) {
+			this[this.rgba[x]] = arguments[x] || ((x==3) ? 1.0 : 0);
+		}
+	},
+	toString: function()  {
+		if(this.a >= 1.0) {
+			return "rgb(" + [this.r, this.g, this.b].join(",") +")";
+		}
+		else {
+			return "rgba("+[this.r, this.g, this.b, this.a].join(",")+")";
+		}
+	},
+	scale: function(rf, gf, bf, af) {
+		x = 4;
+		while(-1<--x) {
+			if(arguments[x] != null) {
+				this[this.rgba[x]] *= arguments[x];
+			}
+		}
+		return this.normalize();
+	},
+	adjust: function(rd, gd, bd, ad) {
+        x = 4; //rgba.length
+        while (-1<--x) {
+            if (arguments[x] != null)
+                this[this.rgba[x]] += arguments[x];
+        }
+        return this.normalize();		
+	},
+	clone: function() {
+        return new Proto.Color(this.r, this.b, this.g, this.a);
+    },
+	limit: function(val,minVal,maxVal) {
+        return Math.max(Math.min(val, maxVal), minVal);
+    },
+    normalize: function() {
+        this.r = this.limit(parseInt(this.r), 0, 255);
+        this.g = this.limit(parseInt(this.g), 0, 255);
+        this.b = this.limit(parseInt(this.b), 0, 255);
+        this.a = this.limit(this.a, 0, 1);
+        return this;
+    }
+});
\ No newline at end of file
diff --git a/usr/local/www/protochart/excanvas-compressed.js b/usr/local/www/protochart/excanvas-compressed.js
new file mode 100644
index 0000000..9d71658
--- /dev/null
+++ b/usr/local/www/protochart/excanvas-compressed.js
@@ -0,0 +1,19 @@
+if(!window.CanvasRenderingContext2D){(function(){var I=Math,i=I.round,L=I.sin,M=I.cos,m=10,A=m/2,Q={init:function(a){var b=a||document;if(/MSIE/.test(navigator.userAgent)&&!window.opera){var c=this;b.attachEvent("onreadystatechange",function(){c.r(b)})}},r:function(a){if(a.readyState=="complete"){if(!a.namespaces["s"]){a.namespaces.add("g_vml_","urn:schemas-microsoft-com:vml")}var b=a.createStyleSheet();b.cssText="canvas{display:inline-block;overflow:hidden;text-align:left;width:300px;height:150px}g_vml_\\:*{behavior:url(#default#VML)}";
+var c=a.getElementsByTagName("canvas");for(var d=0;d<c.length;d++){if(!c[d].getContext){this.initElement(c[d])}}}},q:function(a){var b=a.outerHTML,c=a.ownerDocument.createElement(b);if(b.slice(-2)!="/>"){var d="/"+a.tagName,e;while((e=a.nextSibling)&&e.tagName!=d){e.removeNode()}if(e){e.removeNode()}}a.parentNode.replaceChild(c,a);return c},initElement:function(a){a=this.q(a);a.getContext=function(){if(this.l){return this.l}return this.l=new K(this)};a.attachEvent("onpropertychange",V);a.attachEvent("onresize",
+W);var b=a.attributes;if(b.width&&b.width.specified){a.style.width=b.width.nodeValue+"px"}else{a.width=a.clientWidth}if(b.height&&b.height.specified){a.style.height=b.height.nodeValue+"px"}else{a.height=a.clientHeight}return a}};function V(a){var b=a.srcElement;switch(a.propertyName){case "width":b.style.width=b.attributes.width.nodeValue+"px";b.getContext().clearRect();break;case "height":b.style.height=b.attributes.height.nodeValue+"px";b.getContext().clearRect();break}}function W(a){var b=a.srcElement;
+if(b.firstChild){b.firstChild.style.width=b.clientWidth+"px";b.firstChild.style.height=b.clientHeight+"px"}}Q.init();var R=[];for(var E=0;E<16;E++){for(var F=0;F<16;F++){R[E*16+F]=E.toString(16)+F.toString(16)}}function J(){return[[1,0,0],[0,1,0],[0,0,1]]}function G(a,b){var c=J();for(var d=0;d<3;d++){for(var e=0;e<3;e++){var g=0;for(var h=0;h<3;h++){g+=a[d][h]*b[h][e]}c[d][e]=g}}return c}function N(a,b){b.fillStyle=a.fillStyle;b.lineCap=a.lineCap;b.lineJoin=a.lineJoin;b.lineWidth=a.lineWidth;b.miterLimit=
+a.miterLimit;b.shadowBlur=a.shadowBlur;b.shadowColor=a.shadowColor;b.shadowOffsetX=a.shadowOffsetX;b.shadowOffsetY=a.shadowOffsetY;b.strokeStyle=a.strokeStyle;b.d=a.d;b.e=a.e}function O(a){var b,c=1;a=String(a);if(a.substring(0,3)=="rgb"){var d=a.indexOf("(",3),e=a.indexOf(")",d+1),g=a.substring(d+1,e).split(",");b="#";for(var h=0;h<3;h++){b+=R[Number(g[h])]}if(g.length==4&&a.substr(3,1)=="a"){c=g[3]}}else{b=a}return[b,c]}function S(a){switch(a){case "butt":return"flat";case "round":return"round";
+case "square":default:return"square"}}function K(a){this.a=J();this.m=[];this.k=[];this.c=[];this.strokeStyle="#000";this.fillStyle="#000";this.lineWidth=1;this.lineJoin="miter";this.lineCap="butt";this.miterLimit=m*1;this.globalAlpha=1;this.canvas=a;var b=a.ownerDocument.createElement("div");b.style.width=a.clientWidth+"px";b.style.height=a.clientHeight+"px";b.style.overflow="hidden";b.style.position="absolute";a.appendChild(b);this.j=b;this.d=1;this.e=1}var j=K.prototype;j.clearRect=function(){this.j.innerHTML=
+"";this.c=[]};j.beginPath=function(){this.c=[]};j.moveTo=function(a,b){this.c.push({type:"moveTo",x:a,y:b});this.f=a;this.g=b};j.lineTo=function(a,b){this.c.push({type:"lineTo",x:a,y:b});this.f=a;this.g=b};j.bezierCurveTo=function(a,b,c,d,e,g){this.c.push({type:"bezierCurveTo",cp1x:a,cp1y:b,cp2x:c,cp2y:d,x:e,y:g});this.f=e;this.g=g};j.quadraticCurveTo=function(a,b,c,d){var e=this.f+0.6666666666666666*(a-this.f),g=this.g+0.6666666666666666*(b-this.g),h=e+(c-this.f)/3,l=g+(d-this.g)/3;this.bezierCurveTo(e,
+g,h,l,c,d)};j.arc=function(a,b,c,d,e,g){c*=m;var h=g?"at":"wa",l=a+M(d)*c-A,n=b+L(d)*c-A,o=a+M(e)*c-A,f=b+L(e)*c-A;if(l==o&&!g){l+=0.125}this.c.push({type:h,x:a,y:b,radius:c,xStart:l,yStart:n,xEnd:o,yEnd:f})};j.rect=function(a,b,c,d){this.moveTo(a,b);this.lineTo(a+c,b);this.lineTo(a+c,b+d);this.lineTo(a,b+d);this.closePath()};j.strokeRect=function(a,b,c,d){this.beginPath();this.moveTo(a,b);this.lineTo(a+c,b);this.lineTo(a+c,b+d);this.lineTo(a,b+d);this.closePath();this.stroke()};j.fillRect=function(a,
+b,c,d){this.beginPath();this.moveTo(a,b);this.lineTo(a+c,b);this.lineTo(a+c,b+d);this.lineTo(a,b+d);this.closePath();this.fill()};j.createLinearGradient=function(a,b,c,d){var e=new H("gradient");return e};j.createRadialGradient=function(a,b,c,d,e,g){var h=new H("gradientradial");h.n=c;h.o=g;h.i.x=a;h.i.y=b;return h};j.drawImage=function(a,b){var c,d,e,g,h,l,n,o,f=a.runtimeStyle.width,k=a.runtimeStyle.height;a.runtimeStyle.width="auto";a.runtimeStyle.height="auto";var q=a.width,r=a.height;a.runtimeStyle.width=
+f;a.runtimeStyle.height=k;if(arguments.length==3){c=arguments[1];d=arguments[2];h=(l=0);n=(e=q);o=(g=r)}else if(arguments.length==5){c=arguments[1];d=arguments[2];e=arguments[3];g=arguments[4];h=(l=0);n=q;o=r}else if(arguments.length==9){h=arguments[1];l=arguments[2];n=arguments[3];o=arguments[4];c=arguments[5];d=arguments[6];e=arguments[7];g=arguments[8]}else{throw"Invalid number of arguments";}var s=this.b(c,d),t=[],v=10,w=10;t.push(" <g_vml_:group",' coordsize="',m*v,",",m*w,'"',' coordorigin="0,0"',
+' style="width:',v,";height:",w,";position:absolute;");if(this.a[0][0]!=1||this.a[0][1]){var x=[];x.push("M11='",this.a[0][0],"',","M12='",this.a[1][0],"',","M21='",this.a[0][1],"',","M22='",this.a[1][1],"',","Dx='",i(s.x/m),"',","Dy='",i(s.y/m),"'");var p=s,y=this.b(c+e,d),z=this.b(c,d+g),B=this.b(c+e,d+g);p.x=Math.max(p.x,y.x,z.x,B.x);p.y=Math.max(p.y,y.y,z.y,B.y);t.push("padding:0 ",i(p.x/m),"px ",i(p.y/m),"px 0;filter:progid:DXImageTransform.Microsoft.Matrix(",x.join(""),", sizingmethod='clip');")}else{t.push("top:",
+i(s.y/m),"px;left:",i(s.x/m),"px;")}t.push(' ">','<g_vml_:image src="',a.src,'"',' style="width:',m*e,";"," height:",m*g,';"',' cropleft="',h/q,'"',' croptop="',l/r,'"',' cropright="',(q-h-n)/q,'"',' cropbottom="',(r-l-o)/r,'"'," />","</g_vml_:group>");this.j.insertAdjacentHTML("BeforeEnd",t.join(""))};j.stroke=function(a){var b=[],c=O(a?this.fillStyle:this.strokeStyle),d=c[0],e=c[1]*this.globalAlpha,g=10,h=10;b.push("<g_vml_:shape",' fillcolor="',d,'"',' filled="',Boolean(a),'"',' style="position:absolute;width:',
+g,";height:",h,';"',' coordorigin="0 0" coordsize="',m*g," ",m*h,'"',' stroked="',!a,'"',' strokeweight="',this.lineWidth,'"',' strokecolor="',d,'"',' path="');var l={x:null,y:null},n={x:null,y:null};for(var o=0;o<this.c.length;o++){var f=this.c[o];if(f.type=="moveTo"){b.push(" m ");var k=this.b(f.x,f.y);b.push(i(k.x),",",i(k.y))}else if(f.type=="lineTo"){b.push(" l ");var k=this.b(f.x,f.y);b.push(i(k.x),",",i(k.y))}else if(f.type=="close"){b.push(" x ")}else if(f.type=="bezierCurveTo"){b.push(" c ");
+var k=this.b(f.x,f.y),q=this.b(f.cp1x,f.cp1y),r=this.b(f.cp2x,f.cp2y);b.push(i(q.x),",",i(q.y),",",i(r.x),",",i(r.y),",",i(k.x),",",i(k.y))}else if(f.type=="at"||f.type=="wa"){b.push(" ",f.type," ");var k=this.b(f.x,f.y),s=this.b(f.xStart,f.yStart),t=this.b(f.xEnd,f.yEnd);b.push(i(k.x-this.d*f.radius),",",i(k.y-this.e*f.radius)," ",i(k.x+this.d*f.radius),",",i(k.y+this.e*f.radius)," ",i(s.x),",",i(s.y)," ",i(t.x),",",i(t.y))}if(k){if(l.x==null||k.x<l.x){l.x=k.x}if(n.x==null||k.x>n.x){n.x=k.x}if(l.y==
+null||k.y<l.y){l.y=k.y}if(n.y==null||k.y>n.y){n.y=k.y}}}b.push(' ">');if(typeof this.fillStyle=="object"){var v={x:"50%",y:"50%"},w=n.x-l.x,x=n.y-l.y,p=w>x?w:x;v.x=i(this.fillStyle.i.x/w*100+50)+"%";v.y=i(this.fillStyle.i.y/x*100+50)+"%";var y=[];if(this.fillStyle.p=="gradientradial"){var z=this.fillStyle.n/p*100,B=this.fillStyle.o/p*100-z}else{var z=0,B=100}var C={offset:null,color:null},D={offset:null,color:null};this.fillStyle.h.sort(function(T,U){return T.offset-U.offset});for(var o=0;o<this.fillStyle.h.length;o++){var u=
+this.fillStyle.h[o];y.push(u.offset*B+z,"% ",u.color,",");if(u.offset>C.offset||C.offset==null){C.offset=u.offset;C.color=u.color}if(u.offset<D.offset||D.offset==null){D.offset=u.offset;D.color=u.color}}y.pop();b.push("<g_vml_:fill",' color="',D.color,'"',' color2="',C.color,'"',' type="',this.fillStyle.p,'"',' focusposition="',v.x,", ",v.y,'"',' colors="',y.join(""),'"',' opacity="',e,'" />')}else if(a){b.push('<g_vml_:fill color="',d,'" opacity="',e,'" />')}else{b.push("<g_vml_:stroke",' opacity="',
+e,'"',' joinstyle="',this.lineJoin,'"',' miterlimit="',this.miterLimit,'"',' endcap="',S(this.lineCap),'"',' weight="',this.lineWidth,'px"',' color="',d,'" />')}b.push("</g_vml_:shape>");this.j.insertAdjacentHTML("beforeEnd",b.join(""));this.c=[]};j.fill=function(){this.stroke(true)};j.closePath=function(){this.c.push({type:"close"})};j.b=function(a,b){return{x:m*(a*this.a[0][0]+b*this.a[1][0]+this.a[2][0])-A,y:m*(a*this.a[0][1]+b*this.a[1][1]+this.a[2][1])-A}};j.save=function(){var a={};N(this,a);
+this.k.push(a);this.m.push(this.a);this.a=G(J(),this.a)};j.restore=function(){N(this.k.pop(),this);this.a=this.m.pop()};j.translate=function(a,b){var c=[[1,0,0],[0,1,0],[a,b,1]];this.a=G(c,this.a)};j.rotate=function(a){var b=M(a),c=L(a),d=[[b,c,0],[-c,b,0],[0,0,1]];this.a=G(d,this.a)};j.scale=function(a,b){this.d*=a;this.e*=b;var c=[[a,0,0],[0,b,0],[0,0,1]];this.a=G(c,this.a)};j.clip=function(){};j.arcTo=function(){};j.createPattern=function(){return new P};function H(a){this.p=a;this.n=0;this.o=
+0;this.h=[];this.i={x:0,y:0}}H.prototype.addColorStop=function(a,b){b=O(b);this.h.push({offset:1-a,color:b})};function P(){}G_vmlCanvasManager=Q;CanvasRenderingContext2D=K;CanvasGradient=H;CanvasPattern=P})()};
diff --git a/usr/local/www/protochart/excanvas.js b/usr/local/www/protochart/excanvas.js
new file mode 100644
index 0000000..7914cb9
--- /dev/null
+++ b/usr/local/www/protochart/excanvas.js
@@ -0,0 +1,785 @@
+// Copyright 2006 Google Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//   http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+
+// Known Issues:
+//
+// * Patterns are not implemented.
+// * Radial gradient are not implemented. The VML version of these look very
+//   different from the canvas one.
+// * Clipping paths are not implemented.
+// * Coordsize. The width and height attribute have higher priority than the
+//   width and height style values which isn't correct.
+// * Painting mode isn't implemented.
+// * Canvas width/height should is using content-box by default. IE in
+//   Quirks mode will draw the canvas using border-box. Either change your
+//   doctype to HTML5
+//   (http://www.whatwg.org/specs/web-apps/current-work/#the-doctype)
+//   or use Box Sizing Behavior from WebFX
+//   (http://webfx.eae.net/dhtml/boxsizing/boxsizing.html)
+// * Optimize. There is always room for speed improvements.
+
+// only add this code if we do not already have a canvas implementation
+if (!window.CanvasRenderingContext2D) {
+
+(function () {
+
+  // alias some functions to make (compiled) code shorter
+  var m = Math;
+  var mr = m.round;
+  var ms = m.sin;
+  var mc = m.cos;
+
+  // this is used for sub pixel precision
+  var Z = 10;
+  var Z2 = Z / 2;
+
+  var G_vmlCanvasManager_ = {
+    init: function (opt_doc) {
+      var doc = opt_doc || document;
+      if (/MSIE/.test(navigator.userAgent) && !window.opera) {
+        var self = this;
+        doc.attachEvent("onreadystatechange", function () {
+          self.init_(doc);
+        });
+      }
+    },
+
+    init_: function (doc) {
+      if (doc.readyState == "complete") {
+        // create xmlns
+        if (!doc.namespaces["g_vml_"]) {
+          doc.namespaces.add("g_vml_", "urn:schemas-microsoft-com:vml");
+        }
+
+        // setup default css
+        var ss = doc.createStyleSheet();
+        ss.cssText = "canvas{display:inline-block;overflow:hidden;" +
+            // default size is 300x150 in Gecko and Opera
+            "text-align:left;width:300px;height:150px}" +
+            "g_vml_\\:*{behavior:url(#default#VML)}";
+
+        // find all canvas elements
+        var els = doc.getElementsByTagName("canvas");
+        for (var i = 0; i < els.length; i++) {
+          if (!els[i].getContext) {
+            this.initElement(els[i]);
+          }
+        }
+      }
+    },
+
+    fixElement_: function (el) {
+      // in IE before version 5.5 we would need to add HTML: to the tag name
+      // but we do not care about IE before version 6
+      var outerHTML = el.outerHTML;
+
+      var newEl = el.ownerDocument.createElement(outerHTML);
+      // if the tag is still open IE has created the children as siblings and
+      // it has also created a tag with the name "/FOO"
+      if (outerHTML.slice(-2) != "/>") {
+        var tagName = "/" + el.tagName;
+        var ns;
+        // remove content
+        while ((ns = el.nextSibling) && ns.tagName != tagName) {
+          ns.removeNode();
+        }
+        // remove the incorrect closing tag
+        if (ns) {
+          ns.removeNode();
+        }
+      }
+      el.parentNode.replaceChild(newEl, el);
+      return newEl;
+    },
+
+    /**
+     * Public initializes a canvas element so that it can be used as canvas
+     * element from now on. This is called automatically before the page is
+     * loaded but if you are creating elements using createElement you need to
+     * make sure this is called on the element.
+     * @param {HTMLElement} el The canvas element to initialize.
+     * @return {HTMLElement} the element that was created.
+     */
+    initElement: function (el) {
+      el = this.fixElement_(el);
+      el.getContext = function () {
+        if (this.context_) {
+          return this.context_;
+        }
+        return this.context_ = new CanvasRenderingContext2D_(this);
+      };
+
+      // do not use inline function because that will leak memory
+      el.attachEvent('onpropertychange', onPropertyChange);
+      el.attachEvent('onresize', onResize);
+
+      var attrs = el.attributes;
+      if (attrs.width && attrs.width.specified) {
+        // TODO: use runtimeStyle and coordsize
+        // el.getContext().setWidth_(attrs.width.nodeValue);
+        el.style.width = attrs.width.nodeValue + "px";
+      } else {
+        el.width = el.clientWidth;
+      }
+      if (attrs.height && attrs.height.specified) {
+        // TODO: use runtimeStyle and coordsize
+        // el.getContext().setHeight_(attrs.height.nodeValue);
+        el.style.height = attrs.height.nodeValue + "px";
+      } else {
+        el.height = el.clientHeight;
+      }
+      //el.getContext().setCoordsize_()
+      return el;
+    }
+  };
+
+  function onPropertyChange(e) {
+    var el = e.srcElement;
+
+    switch (e.propertyName) {
+      case 'width':
+        el.style.width = el.attributes.width.nodeValue + "px";
+        el.getContext().clearRect();
+        break;
+      case 'height':
+        el.style.height = el.attributes.height.nodeValue + "px";
+        el.getContext().clearRect();
+        break;
+    }
+  }
+
+  function onResize(e) {
+    var el = e.srcElement;
+    if (el.firstChild) {
+      el.firstChild.style.width =  el.clientWidth + 'px';
+      el.firstChild.style.height = el.clientHeight + 'px';
+    }
+  }
+
+  G_vmlCanvasManager_.init();
+
+  // precompute "00" to "FF"
+  var dec2hex = [];
+  for (var i = 0; i < 16; i++) {
+    for (var j = 0; j < 16; j++) {
+      dec2hex[i * 16 + j] = i.toString(16) + j.toString(16);
+    }
+  }
+
+  function createMatrixIdentity() {
+    return [
+      [1, 0, 0],
+      [0, 1, 0],
+      [0, 0, 1]
+    ];
+  }
+
+  function matrixMultiply(m1, m2) {
+    var result = createMatrixIdentity();
+
+    for (var x = 0; x < 3; x++) {
+      for (var y = 0; y < 3; y++) {
+        var sum = 0;
+
+        for (var z = 0; z < 3; z++) {
+          sum += m1[x][z] * m2[z][y];
+        }
+
+        result[x][y] = sum;
+      }
+    }
+    return result;
+  }
+
+  function copyState(o1, o2) {
+    o2.fillStyle     = o1.fillStyle;
+    o2.lineCap       = o1.lineCap;
+    o2.lineJoin      = o1.lineJoin;
+    o2.lineWidth     = o1.lineWidth;
+    o2.miterLimit    = o1.miterLimit;
+    o2.shadowBlur    = o1.shadowBlur;
+    o2.shadowColor   = o1.shadowColor;
+    o2.shadowOffsetX = o1.shadowOffsetX;
+    o2.shadowOffsetY = o1.shadowOffsetY;
+    o2.strokeStyle   = o1.strokeStyle;
+    o2.arcScaleX_    = o1.arcScaleX_;
+    o2.arcScaleY_    = o1.arcScaleY_;
+  }
+
+  function processStyle(styleString) {
+    var str, alpha = 1;
+
+    styleString = String(styleString);
+    if (styleString.substring(0, 3) == "rgb") {
+      var start = styleString.indexOf("(", 3);
+      var end = styleString.indexOf(")", start + 1);
+      var guts = styleString.substring(start + 1, end).split(",");
+
+      str = "#";
+      for (var i = 0; i < 3; i++) {
+        str += dec2hex[Number(guts[i])];
+      }
+
+      if ((guts.length == 4) && (styleString.substr(3, 1) == "a")) {
+        alpha = guts[3];
+      }
+    } else {
+      str = styleString;
+    }
+
+    return [str, alpha];
+  }
+
+  function processLineCap(lineCap) {
+    switch (lineCap) {
+      case "butt":
+        return "flat";
+      case "round":
+        return "round";
+      case "square":
+      default:
+        return "square";
+    }
+  }
+
+  /**
+   * This class implements CanvasRenderingContext2D interface as described by
+   * the WHATWG.
+   * @param {HTMLElement} surfaceElement The element that the 2D context should
+   * be associated with
+   */
+   function CanvasRenderingContext2D_(surfaceElement) {
+    this.m_ = createMatrixIdentity();
+
+    this.mStack_ = [];
+    this.aStack_ = [];
+    this.currentPath_ = [];
+
+    // Canvas context properties
+    this.strokeStyle = "#000";
+    this.fillStyle = "#000";
+
+    this.lineWidth = 1;
+    this.lineJoin = "miter";
+    this.lineCap = "butt";
+    this.miterLimit = Z * 1;
+    this.globalAlpha = 1;
+    this.canvas = surfaceElement;
+
+    var el = surfaceElement.ownerDocument.createElement('div');
+    el.style.width =  surfaceElement.clientWidth + 'px';
+    el.style.height = surfaceElement.clientHeight + 'px';
+    el.style.overflow = 'hidden';
+    el.style.position = 'absolute';
+    surfaceElement.appendChild(el);
+
+    this.element_ = el;
+    this.arcScaleX_ = 1;
+    this.arcScaleY_ = 1;
+  }
+
+  var contextPrototype = CanvasRenderingContext2D_.prototype;
+  contextPrototype.clearRect = function() {
+    this.element_.innerHTML = "";
+    this.currentPath_ = [];
+  };
+
+  contextPrototype.beginPath = function() {
+    // TODO: Branch current matrix so that save/restore has no effect
+    //       as per safari docs.
+
+    this.currentPath_ = [];
+  };
+
+  contextPrototype.moveTo = function(aX, aY) {
+    this.currentPath_.push({type: "moveTo", x: aX, y: aY});
+    this.currentX_ = aX;
+    this.currentY_ = aY;
+  };
+
+  contextPrototype.lineTo = function(aX, aY) {
+    this.currentPath_.push({type: "lineTo", x: aX, y: aY});
+    this.currentX_ = aX;
+    this.currentY_ = aY;
+  };
+
+  contextPrototype.bezierCurveTo = function(aCP1x, aCP1y,
+                                            aCP2x, aCP2y,
+                                            aX, aY) {
+    this.currentPath_.push({type: "bezierCurveTo",
+                           cp1x: aCP1x,
+                           cp1y: aCP1y,
+                           cp2x: aCP2x,
+                           cp2y: aCP2y,
+                           x: aX,
+                           y: aY});
+    this.currentX_ = aX;
+    this.currentY_ = aY;
+  };
+
+  contextPrototype.quadraticCurveTo = function(aCPx, aCPy, aX, aY) {
+    // the following is lifted almost directly from
+    // http://developer.mozilla.org/en/docs/Canvas_tutorial:Drawing_shapes
+    var cp1x = this.currentX_ + 2.0 / 3.0 * (aCPx - this.currentX_);
+    var cp1y = this.currentY_ + 2.0 / 3.0 * (aCPy - this.currentY_);
+    var cp2x = cp1x + (aX - this.currentX_) / 3.0;
+    var cp2y = cp1y + (aY - this.currentY_) / 3.0;
+    this.bezierCurveTo(cp1x, cp1y, cp2x, cp2y, aX, aY);
+  };
+
+  contextPrototype.arc = function(aX, aY, aRadius,
+                                  aStartAngle, aEndAngle, aClockwise) {
+    aRadius *= Z;
+    var arcType = aClockwise ? "at" : "wa";
+
+    var xStart = aX + (mc(aStartAngle) * aRadius) - Z2;
+    var yStart = aY + (ms(aStartAngle) * aRadius) - Z2;
+
+    var xEnd = aX + (mc(aEndAngle) * aRadius) - Z2;
+    var yEnd = aY + (ms(aEndAngle) * aRadius) - Z2;
+
+    // IE won't render arches drawn counter clockwise if xStart == xEnd.
+    if (xStart == xEnd && !aClockwise) {
+      xStart += 0.125; // Offset xStart by 1/80 of a pixel. Use something
+                       // that can be represented in binary
+    }
+
+    this.currentPath_.push({type: arcType,
+                           x: aX,
+                           y: aY,
+                           radius: aRadius,
+                           xStart: xStart,
+                           yStart: yStart,
+                           xEnd: xEnd,
+                           yEnd: yEnd});
+
+  };
+
+  contextPrototype.rect = function(aX, aY, aWidth, aHeight) {
+    this.moveTo(aX, aY);
+    this.lineTo(aX + aWidth, aY);
+    this.lineTo(aX + aWidth, aY + aHeight);
+    this.lineTo(aX, aY + aHeight);
+    this.closePath();
+  };
+
+  contextPrototype.strokeRect = function(aX, aY, aWidth, aHeight) {
+    // Will destroy any existing path (same as FF behaviour)
+    this.beginPath();
+    this.moveTo(aX, aY);
+    this.lineTo(aX + aWidth, aY);
+    this.lineTo(aX + aWidth, aY + aHeight);
+    this.lineTo(aX, aY + aHeight);
+    this.closePath();
+    this.stroke();
+  };
+
+  contextPrototype.fillRect = function(aX, aY, aWidth, aHeight) {
+    // Will destroy any existing path (same as FF behaviour)
+    this.beginPath();
+    this.moveTo(aX, aY);
+    this.lineTo(aX + aWidth, aY);
+    this.lineTo(aX + aWidth, aY + aHeight);
+    this.lineTo(aX, aY + aHeight);
+    this.closePath();
+    this.fill();
+  };
+
+  contextPrototype.createLinearGradient = function(aX0, aY0, aX1, aY1) {
+    var gradient = new CanvasGradient_("gradient");
+    return gradient;
+  };
+
+  contextPrototype.createRadialGradient = function(aX0, aY0,
+                                                   aR0, aX1,
+                                                   aY1, aR1) {
+    var gradient = new CanvasGradient_("gradientradial");
+    gradient.radius1_ = aR0;
+    gradient.radius2_ = aR1;
+    gradient.focus_.x = aX0;
+    gradient.focus_.y = aY0;
+    return gradient;
+  };
+
+  contextPrototype.drawImage = function (image, var_args) {
+    var dx, dy, dw, dh, sx, sy, sw, sh;
+
+    // to find the original width we overide the width and height
+    var oldRuntimeWidth = image.runtimeStyle.width;
+    var oldRuntimeHeight = image.runtimeStyle.height;
+    image.runtimeStyle.width = 'auto';
+    image.runtimeStyle.height = 'auto';
+
+    // get the original size
+    var w = image.width;
+    var h = image.height;
+
+    // and remove overides
+    image.runtimeStyle.width = oldRuntimeWidth;
+    image.runtimeStyle.height = oldRuntimeHeight;
+
+    if (arguments.length == 3) {
+      dx = arguments[1];
+      dy = arguments[2];
+      sx = sy = 0;
+      sw = dw = w;
+      sh = dh = h;
+    } else if (arguments.length == 5) {
+      dx = arguments[1];
+      dy = arguments[2];
+      dw = arguments[3];
+      dh = arguments[4];
+      sx = sy = 0;
+      sw = w;
+      sh = h;
+    } else if (arguments.length == 9) {
+      sx = arguments[1];
+      sy = arguments[2];
+      sw = arguments[3];
+      sh = arguments[4];
+      dx = arguments[5];
+      dy = arguments[6];
+      dw = arguments[7];
+      dh = arguments[8];
+    } else {
+      throw "Invalid number of arguments";
+    }
+
+    var d = this.getCoords_(dx, dy);
+
+    var w2 = sw / 2;
+    var h2 = sh / 2;
+
+    var vmlStr = [];
+
+    var W = 10;
+    var H = 10;
+
+    // For some reason that I've now forgotten, using divs didn't work
+    vmlStr.push(' <g_vml_:group',
+                ' coordsize="', Z * W, ',', Z * H, '"',
+                ' coordorigin="0,0"' ,
+                ' style="width:', W, ';height:', H, ';position:absolute;');
+
+    // If filters are necessary (rotation exists), create them
+    // filters are bog-slow, so only create them if abbsolutely necessary
+    // The following check doesn't account for skews (which don't exist
+    // in the canvas spec (yet) anyway.
+
+    if (this.m_[0][0] != 1 || this.m_[0][1]) {
+      var filter = [];
+
+      // Note the 12/21 reversal
+      filter.push("M11='", this.m_[0][0], "',",
+                  "M12='", this.m_[1][0], "',",
+                  "M21='", this.m_[0][1], "',",
+                  "M22='", this.m_[1][1], "',",
+                  "Dx='", mr(d.x / Z), "',",
+                  "Dy='", mr(d.y / Z), "'");
+
+      // Bounding box calculation (need to minimize displayed area so that
+      // filters don't waste time on unused pixels.
+      var max = d;
+      var c2 = this.getCoords_(dx + dw, dy);
+      var c3 = this.getCoords_(dx, dy + dh);
+      var c4 = this.getCoords_(dx + dw, dy + dh);
+
+      max.x = Math.max(max.x, c2.x, c3.x, c4.x);
+      max.y = Math.max(max.y, c2.y, c3.y, c4.y);
+
+      vmlStr.push("padding:0 ", mr(max.x / Z), "px ", mr(max.y / Z),
+                  "px 0;filter:progid:DXImageTransform.Microsoft.Matrix(",
+                  filter.join(""), ", sizingmethod='clip');");
+    } else {
+      vmlStr.push("top:", mr(d.y / Z), "px;left:", mr(d.x / Z), "px;");
+    }
+
+    vmlStr.push(' ">' ,
+                '<g_vml_:image src="', image.src, '"',
+                ' style="width:', Z * dw, ';',
+                ' height:', Z * dh, ';"',
+                ' cropleft="', sx / w, '"',
+                ' croptop="', sy / h, '"',
+                ' cropright="', (w - sx - sw) / w, '"',
+                ' cropbottom="', (h - sy - sh) / h, '"',
+                ' />',
+                '</g_vml_:group>');
+
+    this.element_.insertAdjacentHTML("BeforeEnd",
+                                    vmlStr.join(""));
+  };
+
+  contextPrototype.stroke = function(aFill) {
+    var lineStr = [];
+    var lineOpen = false;
+    var a = processStyle(aFill ? this.fillStyle : this.strokeStyle);
+    var color = a[0];
+    var opacity = a[1] * this.globalAlpha;
+
+    var W = 10;
+    var H = 10;
+
+    lineStr.push('<g_vml_:shape',
+                 ' fillcolor="', color, '"',
+                 ' filled="', Boolean(aFill), '"',
+                 ' style="position:absolute;width:', W, ';height:', H, ';"',
+                 ' coordorigin="0 0" coordsize="', Z * W, ' ', Z * H, '"',
+                 ' stroked="', !aFill, '"',
+                 ' strokeweight="', this.lineWidth, '"',
+                 ' strokecolor="', color, '"',
+                 ' path="');
+
+    var newSeq = false;
+    var min = {x: null, y: null};
+    var max = {x: null, y: null};
+
+    for (var i = 0; i < this.currentPath_.length; i++) {
+      var p = this.currentPath_[i];
+
+      if (p.type == "moveTo") {
+        lineStr.push(" m ");
+        var c = this.getCoords_(p.x, p.y);
+        lineStr.push(mr(c.x), ",", mr(c.y));
+      } else if (p.type == "lineTo") {
+        lineStr.push(" l ");
+        var c = this.getCoords_(p.x, p.y);
+        lineStr.push(mr(c.x), ",", mr(c.y));
+      } else if (p.type == "close") {
+        lineStr.push(" x ");
+      } else if (p.type == "bezierCurveTo") {
+        lineStr.push(" c ");
+        var c = this.getCoords_(p.x, p.y);
+        var c1 = this.getCoords_(p.cp1x, p.cp1y);
+        var c2 = this.getCoords_(p.cp2x, p.cp2y);
+        lineStr.push(mr(c1.x), ",", mr(c1.y), ",",
+                     mr(c2.x), ",", mr(c2.y), ",",
+                     mr(c.x), ",", mr(c.y));
+      } else if (p.type == "at" || p.type == "wa") {
+        lineStr.push(" ", p.type, " ");
+        var c  = this.getCoords_(p.x, p.y);
+        var cStart = this.getCoords_(p.xStart, p.yStart);
+        var cEnd = this.getCoords_(p.xEnd, p.yEnd);
+
+        lineStr.push(mr(c.x - this.arcScaleX_ * p.radius), ",",
+                     mr(c.y - this.arcScaleY_ * p.radius), " ",
+                     mr(c.x + this.arcScaleX_ * p.radius), ",",
+                     mr(c.y + this.arcScaleY_ * p.radius), " ",
+                     mr(cStart.x), ",", mr(cStart.y), " ",
+                     mr(cEnd.x), ",", mr(cEnd.y));
+      }
+
+
+      // TODO: Following is broken for curves due to
+      //       move to proper paths.
+
+      // Figure out dimensions so we can do gradient fills
+      // properly
+      if(c) {
+        if (min.x == null || c.x < min.x) {
+          min.x = c.x;
+        }
+        if (max.x == null || c.x > max.x) {
+          max.x = c.x;
+        }
+        if (min.y == null || c.y < min.y) {
+          min.y = c.y;
+        }
+        if (max.y == null || c.y > max.y) {
+          max.y = c.y;
+        }
+      }
+    }
+    lineStr.push(' ">');
+
+    if (typeof this.fillStyle == "object") {
+      var focus = {x: "50%", y: "50%"};
+      var width = (max.x - min.x);
+      var height = (max.y - min.y);
+      var dimension = (width > height) ? width : height;
+
+      focus.x = mr((this.fillStyle.focus_.x / width) * 100 + 50) + "%";
+      focus.y = mr((this.fillStyle.focus_.y / height) * 100 + 50) + "%";
+
+      var colors = [];
+
+      // inside radius (%)
+      if (this.fillStyle.type_ == "gradientradial") {
+        var inside = (this.fillStyle.radius1_ / dimension * 100);
+
+        // percentage that outside radius exceeds inside radius
+        var expansion = (this.fillStyle.radius2_ / dimension * 100) - inside;
+      } else {
+        var inside = 0;
+        var expansion = 100;
+      }
+
+      var insidecolor = {offset: null, color: null};
+      var outsidecolor = {offset: null, color: null};
+
+      // We need to sort 'colors' by percentage, from 0 > 100 otherwise ie
+      // won't interpret it correctly
+      this.fillStyle.colors_.sort(function (cs1, cs2) {
+        return cs1.offset - cs2.offset;
+      });
+
+      for (var i = 0; i < this.fillStyle.colors_.length; i++) {
+        var fs = this.fillStyle.colors_[i];
+
+        colors.push( (fs.offset * expansion) + inside, "% ", fs.color, ",");
+
+        if (fs.offset > insidecolor.offset || insidecolor.offset == null) {
+          insidecolor.offset = fs.offset;
+          insidecolor.color = fs.color;
+        }
+
+        if (fs.offset < outsidecolor.offset || outsidecolor.offset == null) {
+          outsidecolor.offset = fs.offset;
+          outsidecolor.color = fs.color;
+        }
+      }
+      colors.pop();
+
+      lineStr.push('<g_vml_:fill',
+                   ' color="', outsidecolor.color, '"',
+                   ' color2="', insidecolor.color, '"',
+                   ' type="', this.fillStyle.type_, '"',
+                   ' focusposition="', focus.x, ', ', focus.y, '"',
+                   ' colors="', colors.join(""), '"',
+                   ' opacity="', opacity, '" />');
+    } else if (aFill) {
+      lineStr.push('<g_vml_:fill color="', color, '" opacity="', opacity, '" />');
+    } else {
+      lineStr.push(
+        '<g_vml_:stroke',
+        ' opacity="', opacity,'"',
+        ' joinstyle="', this.lineJoin, '"',
+        ' miterlimit="', this.miterLimit, '"',
+        ' endcap="', processLineCap(this.lineCap) ,'"',
+        ' weight="', this.lineWidth, 'px"',
+        ' color="', color,'" />'
+      );
+    }
+
+    lineStr.push("</g_vml_:shape>");
+
+    this.element_.insertAdjacentHTML("beforeEnd", lineStr.join(""));
+
+    //this.currentPath_ = [];
+  };
+
+  contextPrototype.fill = function() {
+    this.stroke(true);
+  };
+
+  contextPrototype.closePath = function() {
+    this.currentPath_.push({type: "close"});
+  };
+
+  /**
+   * @private
+   */
+  contextPrototype.getCoords_ = function(aX, aY) {
+    return {
+      x: Z * (aX * this.m_[0][0] + aY * this.m_[1][0] + this.m_[2][0]) - Z2,
+      y: Z * (aX * this.m_[0][1] + aY * this.m_[1][1] + this.m_[2][1]) - Z2
+    }
+  };
+
+  contextPrototype.save = function() {
+    var o = {};
+    copyState(this, o);
+    this.aStack_.push(o);
+    this.mStack_.push(this.m_);
+    this.m_ = matrixMultiply(createMatrixIdentity(), this.m_);
+  };
+
+  contextPrototype.restore = function() {
+    copyState(this.aStack_.pop(), this);
+    this.m_ = this.mStack_.pop();
+  };
+
+  contextPrototype.translate = function(aX, aY) {
+    var m1 = [
+      [1,  0,  0],
+      [0,  1,  0],
+      [aX, aY, 1]
+    ];
+
+    this.m_ = matrixMultiply(m1, this.m_);
+  };
+
+  contextPrototype.rotate = function(aRot) {
+    var c = mc(aRot);
+    var s = ms(aRot);
+
+    var m1 = [
+      [c,  s, 0],
+      [-s, c, 0],
+      [0,  0, 1]
+    ];
+
+    this.m_ = matrixMultiply(m1, this.m_);
+  };
+
+  contextPrototype.scale = function(aX, aY) {
+    this.arcScaleX_ *= aX;
+    this.arcScaleY_ *= aY;
+    var m1 = [
+      [aX, 0,  0],
+      [0,  aY, 0],
+      [0,  0,  1]
+    ];
+
+    this.m_ = matrixMultiply(m1, this.m_);
+  };
+
+  /******** STUBS ********/
+  contextPrototype.clip = function() {
+    // TODO: Implement
+  };
+
+  contextPrototype.arcTo = function() {
+    // TODO: Implement
+  };
+
+  contextPrototype.createPattern = function() {
+    return new CanvasPattern_;
+  };
+
+  // Gradient / Pattern Stubs
+  function CanvasGradient_(aType) {
+    this.type_ = aType;
+    this.radius1_ = 0;
+    this.radius2_ = 0;
+    this.colors_ = [];
+    this.focus_ = {x: 0, y: 0};
+  }
+
+  CanvasGradient_.prototype.addColorStop = function(aOffset, aColor) {
+    aColor = processStyle(aColor);
+    this.colors_.push({offset: 1-aOffset, color: aColor});
+  };
+
+  function CanvasPattern_() {}
+
+  // set up externs
+  G_vmlCanvasManager = G_vmlCanvasManager_;
+  CanvasRenderingContext2D = CanvasRenderingContext2D_;
+  CanvasGradient = CanvasGradient_;
+  CanvasPattern = CanvasPattern_;
+
+})();
+
+} // if