Bumped version to 4.3. Added jpgraph stats developed by killerEye

1 files changed, 3113 insertions, 0 deletions

diff --git a/html/includes/js/modules/canvas-tools.src.js b/html/includes/js/modules/canvas-tools.src.js
new file mode 100644
index 0000000..3725c02
--- /dev/null
+++ b/html/includes/js/modules/canvas-tools.src.js
@@ -0,0 +1,3113 @@
+/**
+ * @license A class to parse color values
+ * @author Stoyan Stefanov <sstoo@gmail.com>
+ * @link   http://www.phpied.com/rgb-color-parser-in-javascript/
+ * Use it if you like it
+ *
+ */
+function RGBColor(color_string)
+{
+    this.ok = false;
+
+    // strip any leading #
+    if (color_string.charAt(0) == '#') { // remove # if any
+        color_string = color_string.substr(1,6);
+    }
+
+    color_string = color_string.replace(/ /g,'');
+    color_string = color_string.toLowerCase();
+
+    // before getting into regexps, try simple matches
+    // and overwrite the input
+    var simple_colors = {
+        aliceblue: 'f0f8ff',
+        antiquewhite: 'faebd7',
+        aqua: '00ffff',
+        aquamarine: '7fffd4',
+        azure: 'f0ffff',
+        beige: 'f5f5dc',
+        bisque: 'ffe4c4',
+        black: '000000',
+        blanchedalmond: 'ffebcd',
+        blue: '0000ff',
+        blueviolet: '8a2be2',
+        brown: 'a52a2a',
+        burlywood: 'deb887',
+        cadetblue: '5f9ea0',
+        chartreuse: '7fff00',
+        chocolate: 'd2691e',
+        coral: 'ff7f50',
+        cornflowerblue: '6495ed',
+        cornsilk: 'fff8dc',
+        crimson: 'dc143c',
+        cyan: '00ffff',
+        darkblue: '00008b',
+        darkcyan: '008b8b',
+        darkgoldenrod: 'b8860b',
+        darkgray: 'a9a9a9',
+        darkgreen: '006400',
+        darkkhaki: 'bdb76b',
+        darkmagenta: '8b008b',
+        darkolivegreen: '556b2f',
+        darkorange: 'ff8c00',
+        darkorchid: '9932cc',
+        darkred: '8b0000',
+        darksalmon: 'e9967a',
+        darkseagreen: '8fbc8f',
+        darkslateblue: '483d8b',
+        darkslategray: '2f4f4f',
+        darkturquoise: '00ced1',
+        darkviolet: '9400d3',
+        deeppink: 'ff1493',
+        deepskyblue: '00bfff',
+        dimgray: '696969',
+        dodgerblue: '1e90ff',
+        feldspar: 'd19275',
+        firebrick: 'b22222',
+        floralwhite: 'fffaf0',
+        forestgreen: '228b22',
+        fuchsia: 'ff00ff',
+        gainsboro: 'dcdcdc',
+        ghostwhite: 'f8f8ff',
+        gold: 'ffd700',
+        goldenrod: 'daa520',
+        gray: '808080',
+        green: '008000',
+        greenyellow: 'adff2f',
+        honeydew: 'f0fff0',
+        hotpink: 'ff69b4',
+        indianred : 'cd5c5c',
+        indigo : '4b0082',
+        ivory: 'fffff0',
+        khaki: 'f0e68c',
+        lavender: 'e6e6fa',
+        lavenderblush: 'fff0f5',
+        lawngreen: '7cfc00',
+        lemonchiffon: 'fffacd',
+        lightblue: 'add8e6',
+        lightcoral: 'f08080',
+        lightcyan: 'e0ffff',
+        lightgoldenrodyellow: 'fafad2',
+        lightgrey: 'd3d3d3',
+        lightgreen: '90ee90',
+        lightpink: 'ffb6c1',
+        lightsalmon: 'ffa07a',
+        lightseagreen: '20b2aa',
+        lightskyblue: '87cefa',
+        lightslateblue: '8470ff',
+        lightslategray: '778899',
+        lightsteelblue: 'b0c4de',
+        lightyellow: 'ffffe0',
+        lime: '00ff00',
+        limegreen: '32cd32',
+        linen: 'faf0e6',
+        magenta: 'ff00ff',
+        maroon: '800000',
+        mediumaquamarine: '66cdaa',
+        mediumblue: '0000cd',
+        mediumorchid: 'ba55d3',
+        mediumpurple: '9370d8',
+        mediumseagreen: '3cb371',
+        mediumslateblue: '7b68ee',
+        mediumspringgreen: '00fa9a',
+        mediumturquoise: '48d1cc',
+        mediumvioletred: 'c71585',
+        midnightblue: '191970',
+        mintcream: 'f5fffa',
+        mistyrose: 'ffe4e1',
+        moccasin: 'ffe4b5',
+        navajowhite: 'ffdead',
+        navy: '000080',
+        oldlace: 'fdf5e6',
+        olive: '808000',
+        olivedrab: '6b8e23',
+        orange: 'ffa500',
+        orangered: 'ff4500',
+        orchid: 'da70d6',
+        palegoldenrod: 'eee8aa',
+        palegreen: '98fb98',
+        paleturquoise: 'afeeee',
+        palevioletred: 'd87093',
+        papayawhip: 'ffefd5',
+        peachpuff: 'ffdab9',
+        peru: 'cd853f',
+        pink: 'ffc0cb',
+        plum: 'dda0dd',
+        powderblue: 'b0e0e6',
+        purple: '800080',
+        red: 'ff0000',
+        rosybrown: 'bc8f8f',
+        royalblue: '4169e1',
+        saddlebrown: '8b4513',
+        salmon: 'fa8072',
+        sandybrown: 'f4a460',
+        seagreen: '2e8b57',
+        seashell: 'fff5ee',
+        sienna: 'a0522d',
+        silver: 'c0c0c0',
+        skyblue: '87ceeb',
+        slateblue: '6a5acd',
+        slategray: '708090',
+        snow: 'fffafa',
+        springgreen: '00ff7f',
+        steelblue: '4682b4',
+        tan: 'd2b48c',
+        teal: '008080',
+        thistle: 'd8bfd8',
+        tomato: 'ff6347',
+        turquoise: '40e0d0',
+        violet: 'ee82ee',
+        violetred: 'd02090',
+        wheat: 'f5deb3',
+        white: 'ffffff',
+        whitesmoke: 'f5f5f5',
+        yellow: 'ffff00',
+        yellowgreen: '9acd32'
+    };
+    for (var key in simple_colors) {
+        if (color_string == key) {
+            color_string = simple_colors[key];
+        }
+    }
+    // emd of simple type-in colors
+
+    // array of color definition objects
+    var color_defs = [
+        {
+            re: /^rgb\((\d{1,3}),\s*(\d{1,3}),\s*(\d{1,3})\)$/,
+            example: ['rgb(123, 234, 45)', 'rgb(255,234,245)'],
+            process: function (bits){
+                return [
+                    parseInt(bits[1]),
+                    parseInt(bits[2]),
+                    parseInt(bits[3])
+                ];
+            }
+        },
+        {
+            re: /^(\w{2})(\w{2})(\w{2})$/,
+            example: ['#00ff00', '336699'],
+            process: function (bits){
+                return [
+                    parseInt(bits[1], 16),
+                    parseInt(bits[2], 16),
+                    parseInt(bits[3], 16)
+                ];
+            }
+        },
+        {
+            re: /^(\w{1})(\w{1})(\w{1})$/,
+            example: ['#fb0', 'f0f'],
+            process: function (bits){
+                return [
+                    parseInt(bits[1] + bits[1], 16),
+                    parseInt(bits[2] + bits[2], 16),
+                    parseInt(bits[3] + bits[3], 16)
+                ];
+            }
+        }
+    ];
+
+    // search through the definitions to find a match
+    for (var i = 0; i < color_defs.length; i++) {
+        var re = color_defs[i].re;
+        var processor = color_defs[i].process;
+        var bits = re.exec(color_string);
+        if (bits) {
+            channels = processor(bits);
+            this.r = channels[0];
+            this.g = channels[1];
+            this.b = channels[2];
+            this.ok = true;
+        }
+
+    }
+
+    // validate/cleanup values
+    this.r = (this.r < 0 || isNaN(this.r)) ? 0 : ((this.r > 255) ? 255 : this.r);
+    this.g = (this.g < 0 || isNaN(this.g)) ? 0 : ((this.g > 255) ? 255 : this.g);
+    this.b = (this.b < 0 || isNaN(this.b)) ? 0 : ((this.b > 255) ? 255 : this.b);
+
+    // some getters
+    this.toRGB = function () {
+        return 'rgb(' + this.r + ', ' + this.g + ', ' + this.b + ')';
+    }
+    this.toHex = function () {
+        var r = this.r.toString(16);
+        var g = this.g.toString(16);
+        var b = this.b.toString(16);
+        if (r.length == 1) r = '0' + r;
+        if (g.length == 1) g = '0' + g;
+        if (b.length == 1) b = '0' + b;
+        return '#' + r + g + b;
+    }
+
+    // help
+    this.getHelpXML = function () {
+
+        var examples = new Array();
+        // add regexps
+        for (var i = 0; i < color_defs.length; i++) {
+            var example = color_defs[i].example;
+            for (var j = 0; j < example.length; j++) {
+                examples[examples.length] = example[j];
+            }
+        }
+        // add type-in colors
+        for (var sc in simple_colors) {
+            examples[examples.length] = sc;
+        }
+
+        var xml = document.createElement('ul');
+        xml.setAttribute('id', 'rgbcolor-examples');
+        for (var i = 0; i < examples.length; i++) {
+            try {
+                var list_item = document.createElement('li');
+                var list_color = new RGBColor(examples[i]);
+                var example_div = document.createElement('div');
+                example_div.style.cssText =
+                        'margin: 3px; '
+                        + 'border: 1px solid black; '
+                        + 'background:' + list_color.toHex() + '; '
+                        + 'color:' + list_color.toHex()
+                ;
+                example_div.appendChild(document.createTextNode('test'));
+                var list_item_value = document.createTextNode(
+                    ' ' + examples[i] + ' -> ' + list_color.toRGB() + ' -> ' + list_color.toHex()
+                );
+                list_item.appendChild(example_div);
+                list_item.appendChild(list_item_value);
+                xml.appendChild(list_item);
+
+            } catch(e){}
+        }
+        return xml;
+
+    }
+
+}
+
+/**
+ * @license canvg.js - Javascript SVG parser and renderer on Canvas
+ * MIT Licensed 
+ * Gabe Lerner (gabelerner@gmail.com)
+ * http://code.google.com/p/canvg/
+ *
+ * Requires: rgbcolor.js - http://www.phpied.com/rgb-color-parser-in-javascript/
+ *
+ */
+if(!window.console) {
+	window.console = {};
+	window.console.log = function(str) {};
+	window.console.dir = function(str) {};
+}
+
+if(!Array.prototype.indexOf){
+	Array.prototype.indexOf = function(obj){
+		for(var i=0; i<this.length; i++){
+			if(this[i]==obj){
+				return i;
+			}
+		}
+		return -1;
+	}
+}
+
+(function(){
+	// canvg(target, s)
+	// empty parameters: replace all 'svg' elements on page with 'canvas' elements
+	// target: canvas element or the id of a canvas element
+	// s: svg string, url to svg file, or xml document
+	// opts: optional hash of options
+	//		 ignoreMouse: true => ignore mouse events
+	//		 ignoreAnimation: true => ignore animations
+	//		 ignoreDimensions: true => does not try to resize canvas
+	//		 ignoreClear: true => does not clear canvas
+	//		 offsetX: int => draws at a x offset
+	//		 offsetY: int => draws at a y offset
+	//		 scaleWidth: int => scales horizontally to width
+	//		 scaleHeight: int => scales vertically to height
+	//		 renderCallback: function => will call the function after the first render is completed
+	//		 forceRedraw: function => will call the function on every frame, if it returns true, will redraw
+	this.canvg = function (target, s, opts) {
+		// no parameters
+		if (target == null && s == null && opts == null) {
+			var svgTags = document.getElementsByTagName('svg');
+			for (var i=0; i<svgTags.length; i++) {
+				var svgTag = svgTags[i];
+				var c = document.createElement('canvas');
+				c.width = svgTag.clientWidth;
+				c.height = svgTag.clientHeight;
+				svgTag.parentNode.insertBefore(c, svgTag);
+				svgTag.parentNode.removeChild(svgTag);
+				var div = document.createElement('div');
+				div.appendChild(svgTag);
+				canvg(c, div.innerHTML);
+			}
+			return;
+		}	
+		opts = opts || {};
+	
+		if (typeof target == 'string') {
+			target = document.getElementById(target);
+		}
+		
+		// reuse class per canvas
+		var svg;
+		if (target.svg == null) {
+			svg = build();
+			target.svg = svg;
+		}
+		else {
+			svg = target.svg;
+			svg.stop();
+		}
+		svg.opts = opts;
+		
+		var ctx = target.getContext('2d');
+		if (typeof(s.documentElement) != 'undefined') {
+			// load from xml doc
+			svg.loadXmlDoc(ctx, s);
+		}
+		else if (s.substr(0,1) == '<') {
+			// load from xml string
+			svg.loadXml(ctx, s);
+		}
+		else {
+			// load from url
+			svg.load(ctx, s);
+		}
+	}
+
+	function build() {
+		var svg = { };
+		
+		svg.FRAMERATE = 30;
+		svg.MAX_VIRTUAL_PIXELS = 30000;
+		
+		// globals
+		svg.init = function(ctx) {
+			svg.Definitions = {};
+			svg.Styles = {};
+			svg.Animations = [];
+			svg.Images = [];
+			svg.ctx = ctx;
+			svg.ViewPort = new (function () {
+				this.viewPorts = [];
+				this.Clear = function() { this.viewPorts = []; }
+				this.SetCurrent = function(width, height) { this.viewPorts.push({ width: width, height: height }); }
+				this.RemoveCurrent = function() { this.viewPorts.pop(); }
+				this.Current = function() { return this.viewPorts[this.viewPorts.length - 1]; }
+				this.width = function() { return this.Current().width; }
+				this.height = function() { return this.Current().height; }
+				this.ComputeSize = function(d) {
+					if (d != null && typeof(d) == 'number') return d;
+					if (d == 'x') return this.width();
+					if (d == 'y') return this.height();
+					return Math.sqrt(Math.pow(this.width(), 2) + Math.pow(this.height(), 2)) / Math.sqrt(2);			
+				}
+			});
+		}
+		svg.init();
+		
+		// images loaded
+		svg.ImagesLoaded = function() { 
+			for (var i=0; i<svg.Images.length; i++) {
+				if (!svg.Images[i].loaded) return false;
+			}
+			return true;
+		}
+
+		// trim
+		svg.trim = function(s) { return s.replace(/^\s+|\s+$/g, ''); }
+		
+		// compress spaces
+		svg.compressSpaces = function(s) { return s.replace(/[\s\r\t\n]+/gm,' '); }
+		
+		// ajax
+		svg.ajax = function(url) {
+			var AJAX;
+			if(window.XMLHttpRequest){AJAX=new XMLHttpRequest();}
+			else{AJAX=new ActiveXObject('Microsoft.XMLHTTP');}
+			if(AJAX){
+			   AJAX.open('GET',url,false);
+			   AJAX.send(null);
+			   return AJAX.responseText;
+			}
+			return null;
+		} 
+		
+		// parse xml
+		svg.parseXml = function(xml) {
+			if (window.DOMParser)
+			{
+				var parser = new DOMParser();
+				return parser.parseFromString(xml, 'text/xml');
+			}
+			else 
+			{
+				xml = xml.replace(/<!DOCTYPE svg[^>]*>/, '');
+				var xmlDoc = new ActiveXObject('Microsoft.XMLDOM');
+				xmlDoc.async = 'false';
+				xmlDoc.loadXML(xml); 
+				return xmlDoc;
+			}		
+		}
+		
+		svg.Property = function(name, value) {
+			this.name = name;
+			this.value = value;
+			
+			this.hasValue = function() {
+				return (this.value != null && this.value !== '');
+			}
+							
+			// return the numerical value of the property
+			this.numValue = function() {
+				if (!this.hasValue()) return 0;
+				
+				var n = parseFloat(this.value);
+				if ((this.value + '').match(/%$/)) {
+					n = n / 100.0;
+				}
+				return n;
+			}
+			
+			this.valueOrDefault = function(def) {
+				if (this.hasValue()) return this.value;
+				return def;
+			}
+			
+			this.numValueOrDefault = function(def) {
+				if (this.hasValue()) return this.numValue();
+				return def;
+			}
+			
+			/* EXTENSIONS */
+			var that = this;
+			
+			// color extensions
+			this.Color = {
+				// augment the current color value with the opacity
+				addOpacity: function(opacity) {
+					var newValue = that.value;
+					if (opacity != null && opacity != '') {
+						var color = new RGBColor(that.value);
+						if (color.ok) {
+							newValue = 'rgba(' + color.r + ', ' + color.g + ', ' + color.b + ', ' + opacity + ')';
+						}
+					}
+					return new svg.Property(that.name, newValue);
+				}
+			}
+			
+			// definition extensions
+			this.Definition = {
+				// get the definition from the definitions table
+				getDefinition: function() {
+					var name = that.value.replace(/^(url\()?#([^\)]+)\)?$/, '$2');
+					return svg.Definitions[name];
+				},
+				
+				isUrl: function() {
+					return that.value.indexOf('url(') == 0
+				},
+				
+				getFillStyle: function(e) {
+					var def = this.getDefinition();
+					
+					// gradient
+					if (def != null && def.createGradient) {
+						return def.createGradient(svg.ctx, e);
+					}
+					
+					// pattern
+					if (def != null && def.createPattern) {
+						return def.createPattern(svg.ctx, e);
+					}
+					
+					return null;
+				}
+			}
+			
+			// length extensions
+			this.Length = {
+				DPI: function(viewPort) {
+					return 96.0; // TODO: compute?
+				},
+				
+				EM: function(viewPort) {
+					var em = 12;
+					
+					var fontSize = new svg.Property('fontSize', svg.Font.Parse(svg.ctx.font).fontSize);
+					if (fontSize.hasValue()) em = fontSize.Length.toPixels(viewPort);
+					
+					return em;
+				},
+			
+				// get the length as pixels
+				toPixels: function(viewPort) {
+					if (!that.hasValue()) return 0;
+					var s = that.value+'';
+					if (s.match(/em$/)) return that.numValue() * this.EM(viewPort);
+					if (s.match(/ex$/)) return that.numValue() * this.EM(viewPort) / 2.0;
+					if (s.match(/px$/)) return that.numValue();
+					if (s.match(/pt$/)) return that.numValue() * 1.25;
+					if (s.match(/pc$/)) return that.numValue() * 15;
+					if (s.match(/cm$/)) return that.numValue() * this.DPI(viewPort) / 2.54;
+					if (s.match(/mm$/)) return that.numValue() * this.DPI(viewPort) / 25.4;
+					if (s.match(/in$/)) return that.numValue() * this.DPI(viewPort);
+					if (s.match(/%$/)) return that.numValue() * svg.ViewPort.ComputeSize(viewPort);
+					return that.numValue();
+				}
+			}
+			
+			// time extensions
+			this.Time = {
+				// get the time as milliseconds
+				toMilliseconds: function() {
+					if (!that.hasValue()) return 0;
+					var s = that.value+'';
+					if (s.match(/s$/)) return that.numValue() * 1000;
+					if (s.match(/ms$/)) return that.numValue();
+					return that.numValue();
+				}
+			}
+			
+			// angle extensions
+			this.Angle = {
+				// get the angle as radians
+				toRadians: function() {
+					if (!that.hasValue()) return 0;
+					var s = that.value+'';
+					if (s.match(/deg$/)) return that.numValue() * (Math.PI / 180.0);
+					if (s.match(/grad$/)) return that.numValue() * (Math.PI / 200.0);
+					if (s.match(/rad$/)) return that.numValue();
+					return that.numValue() * (Math.PI / 180.0);
+				}
+			}
+		}
+		
+		// fonts
+		svg.Font = new (function() {
+			this.Styles = ['normal','italic','oblique','inherit'];
+			this.Variants = ['normal','small-caps','inherit'];
+			this.Weights = ['normal','bold','bolder','lighter','100','200','300','400','500','600','700','800','900','inherit'];
+			
+			this.CreateFont = function(fontStyle, fontVariant, fontWeight, fontSize, fontFamily, inherit) { 
+				var f = inherit != null ? this.Parse(inherit) : this.CreateFont('', '', '', '', '', svg.ctx.font);
+				return { 
+					fontFamily: fontFamily || f.fontFamily, 
+					fontSize: fontSize || f.fontSize, 
+					fontStyle: fontStyle || f.fontStyle, 
+					fontWeight: fontWeight || f.fontWeight, 
+					fontVariant: fontVariant || f.fontVariant,
+					toString: function () { return [this.fontStyle, this.fontVariant, this.fontWeight, this.fontSize, this.fontFamily].join(' ') } 
+				} 
+			}
+			
+			var that = this;
+			this.Parse = function(s) {
+				var f = {};
+				var d = svg.trim(svg.compressSpaces(s || '')).split(' ');
+				var set = { fontSize: false, fontStyle: false, fontWeight: false, fontVariant: false }
+				var ff = '';
+				for (var i=0; i<d.length; i++) {
+					if (!set.fontStyle && that.Styles.indexOf(d[i]) != -1) { if (d[i] != 'inherit') f.fontStyle = d[i]; set.fontStyle = true; }
+					else if (!set.fontVariant && that.Variants.indexOf(d[i]) != -1) { if (d[i] != 'inherit') f.fontVariant = d[i]; set.fontStyle = set.fontVariant = true;	}
+					else if (!set.fontWeight && that.Weights.indexOf(d[i]) != -1) {	if (d[i] != 'inherit') f.fontWeight = d[i]; set.fontStyle = set.fontVariant = set.fontWeight = true; }
+					else if (!set.fontSize) { if (d[i] != 'inherit') f.fontSize = d[i].split('/')[0]; set.fontStyle = set.fontVariant = set.fontWeight = set.fontSize = true; }
+					else { if (d[i] != 'inherit') ff += d[i]; }
+				} if (ff != '') f.fontFamily = ff;
+				return f;
+			}
+		});
+		
+		// points and paths
+		svg.ToNumberArray = function(s) {
+			var a = svg.trim(svg.compressSpaces((s || '').replace(/,/g, ' '))).split(' ');
+			for (var i=0; i<a.length; i++) {
+				a[i] = parseFloat(a[i]);
+			}
+			return a;
+		}		
+		svg.Point = function(x, y) {
+			this.x = x;
+			this.y = y;
+			
+			this.angleTo = function(p) {
+				return Math.atan2(p.y - this.y, p.x - this.x);
+			}
+			
+			this.applyTransform = function(v) {
+				var xp = this.x * v[0] + this.y * v[2] + v[4];
+				var yp = this.x * v[1] + this.y * v[3] + v[5];
+				this.x = xp;
+				this.y = yp;
+			}
+		}
+		svg.CreatePoint = function(s) {
+			var a = svg.ToNumberArray(s);
+			return new svg.Point(a[0], a[1]);
+		}
+		svg.CreatePath = function(s) {
+			var a = svg.ToNumberArray(s);
+			var path = [];
+			for (var i=0; i<a.length; i+=2) {
+				path.push(new svg.Point(a[i], a[i+1]));
+			}
+			return path;
+		}
+		
+		// bounding box
+		svg.BoundingBox = function(x1, y1, x2, y2) { // pass in initial points if you want
+			this.x1 = Number.NaN;
+			this.y1 = Number.NaN;
+			this.x2 = Number.NaN;
+			this.y2 = Number.NaN;
+			
+			this.x = function() { return this.x1; }
+			this.y = function() { return this.y1; }
+			this.width = function() { return this.x2 - this.x1; }
+			this.height = function() { return this.y2 - this.y1; }
+			
+			this.addPoint = function(x, y) {	
+				if (x != null) {
+					if (isNaN(this.x1) || isNaN(this.x2)) {
+						this.x1 = x;
+						this.x2 = x;
+					}
+					if (x < this.x1) this.x1 = x;
+					if (x > this.x2) this.x2 = x;
+				}
+			
+				if (y != null) {
+					if (isNaN(this.y1) || isNaN(this.y2)) {
+						this.y1 = y;
+						this.y2 = y;
+					}
+					if (y < this.y1) this.y1 = y;
+					if (y > this.y2) this.y2 = y;
+				}
+			}			
+			this.addX = function(x) { this.addPoint(x, null); }
+			this.addY = function(y) { this.addPoint(null, y); }
+			
+			this.addBoundingBox = function(bb) {
+				this.addPoint(bb.x1, bb.y1);
+				this.addPoint(bb.x2, bb.y2);
+			}
+			
+			this.addQuadraticCurve = function(p0x, p0y, p1x, p1y, p2x, p2y) {
+				var cp1x = p0x + 2/3 * (p1x - p0x); // CP1 = QP0 + 2/3 *(QP1-QP0)
+				var cp1y = p0y + 2/3 * (p1y - p0y); // CP1 = QP0 + 2/3 *(QP1-QP0)
+				var cp2x = cp1x + 1/3 * (p2x - p0x); // CP2 = CP1 + 1/3 *(QP2-QP0)
+				var cp2y = cp1y + 1/3 * (p2y - p0y); // CP2 = CP1 + 1/3 *(QP2-QP0)
+				this.addBezierCurve(p0x, p0y, cp1x, cp2x, cp1y,	cp2y, p2x, p2y);
+			}
+			
+			this.addBezierCurve = function(p0x, p0y, p1x, p1y, p2x, p2y, p3x, p3y) {
+				// from http://blog.hackers-cafe.net/2009/06/how-to-calculate-bezier-curves-bounding.html
+				var p0 = [p0x, p0y], p1 = [p1x, p1y], p2 = [p2x, p2y], p3 = [p3x, p3y];
+				this.addPoint(p0[0], p0[1]);
+				this.addPoint(p3[0], p3[1]);
+				
+				for (i=0; i<=1; i++) {
+					var f = function(t) { 
+						return Math.pow(1-t, 3) * p0[i]
+						+ 3 * Math.pow(1-t, 2) * t * p1[i]
+						+ 3 * (1-t) * Math.pow(t, 2) * p2[i]
+						+ Math.pow(t, 3) * p3[i];
+					}
+					
+					var b = 6 * p0[i] - 12 * p1[i] + 6 * p2[i];
+					var a = -3 * p0[i] + 9 * p1[i] - 9 * p2[i] + 3 * p3[i];
+					var c = 3 * p1[i] - 3 * p0[i];
+					
+					if (a == 0) {
+						if (b == 0) continue;
+						var t = -c / b;
+						if (0 < t && t < 1) {
+							if (i == 0) this.addX(f(t));
+							if (i == 1) this.addY(f(t));
+						}
+						continue;
+					}
+					
+					var b2ac = Math.pow(b, 2) - 4 * c * a;
+					if (b2ac < 0) continue;
+					var t1 = (-b + Math.sqrt(b2ac)) / (2 * a);
+					if (0 < t1 && t1 < 1) {
+						if (i == 0) this.addX(f(t1));
+						if (i == 1) this.addY(f(t1));
+					}
+					var t2 = (-b - Math.sqrt(b2ac)) / (2 * a);
+					if (0 < t2 && t2 < 1) {
+						if (i == 0) this.addX(f(t2));
+						if (i == 1) this.addY(f(t2));
+					}
+				}
+			}
+			
+			this.isPointInBox = function(x, y) {
+				return (this.x1 <= x && x <= this.x2 && this.y1 <= y && y <= this.y2);
+			}
+			
+			this.addPoint(x1, y1);
+			this.addPoint(x2, y2);
+		}
+		
+		// transforms
+		svg.Transform = function(v) {	
+			var that = this;
+			this.Type = {}
+		
+			// translate
+			this.Type.translate = function(s) {
+				this.p = svg.CreatePoint(s);			
+				this.apply = function(ctx) {
+					ctx.translate(this.p.x || 0.0, this.p.y || 0.0);
+				}
+				this.applyToPoint = function(p) {
+					p.applyTransform([1, 0, 0, 1, this.p.x || 0.0, this.p.y || 0.0]);
+				}
+			}
+			
+			// rotate
+			this.Type.rotate = function(s) {
+				var a = svg.ToNumberArray(s);
+				this.angle = new svg.Property('angle', a[0]);
+				this.cx = a[1] || 0;
+				this.cy = a[2] || 0;
+				this.apply = function(ctx) {
+					ctx.translate(this.cx, this.cy);
+					ctx.rotate(this.angle.Angle.toRadians());
+					ctx.translate(-this.cx, -this.cy);
+				}
+				this.applyToPoint = function(p) {
+					var a = this.angle.Angle.toRadians();
+					p.applyTransform([1, 0, 0, 1, this.p.x || 0.0, this.p.y || 0.0]);
+					p.applyTransform([Math.cos(a), Math.sin(a), -Math.sin(a), Math.cos(a), 0, 0]);
+					p.applyTransform([1, 0, 0, 1, -this.p.x || 0.0, -this.p.y || 0.0]);
+				}			
+			}
+			
+			this.Type.scale = function(s) {
+				this.p = svg.CreatePoint(s);
+				this.apply = function(ctx) {
+					ctx.scale(this.p.x || 1.0, this.p.y || this.p.x || 1.0);
+				}
+				this.applyToPoint = function(p) {
+					p.applyTransform([this.p.x || 0.0, 0, 0, this.p.y || 0.0, 0, 0]);
+				}				
+			}
+			
+			this.Type.matrix = function(s) {
+				this.m = svg.ToNumberArray(s);
+				this.apply = function(ctx) {
+					ctx.transform(this.m[0], this.m[1], this.m[2], this.m[3], this.m[4], this.m[5]);
+				}
+				this.applyToPoint = function(p) {
+					p.applyTransform(this.m);
+				}					
+			}
+			
+			this.Type.SkewBase = function(s) {
+				this.base = that.Type.matrix;
+				this.base(s);
+				this.angle = new svg.Property('angle', s);
+			}
+			this.Type.SkewBase.prototype = new this.Type.matrix;
+			
+			this.Type.skewX = function(s) {
+				this.base = that.Type.SkewBase;
+				this.base(s);
+				this.m = [1, 0, Math.tan(this.angle.Angle.toRadians()), 1, 0, 0];
+			}
+			this.Type.skewX.prototype = new this.Type.SkewBase;
+			
+			this.Type.skewY = function(s) {
+				this.base = that.Type.SkewBase;
+				this.base(s);
+				this.m = [1, Math.tan(this.angle.Angle.toRadians()), 0, 1, 0, 0];
+			}
+			this.Type.skewY.prototype = new this.Type.SkewBase;
+		
+			this.transforms = [];
+			
+			this.apply = function(ctx) {
+				for (var i=0; i<this.transforms.length; i++) {
+					this.transforms[i].apply(ctx);
+				}
+			}
+			
+			this.applyToPoint = function(p) {
+				for (var i=0; i<this.transforms.length; i++) {
+					this.transforms[i].applyToPoint(p);
+				}
+			}
+			
+			var data = svg.trim(svg.compressSpaces(v)).split(/\s(?=[a-z])/);
+			for (var i=0; i<data.length; i++) {
+				var type = data[i].split('(')[0];
+				var s = data[i].split('(')[1].replace(')','');
+				var transform = new this.Type[type](s);
+				this.transforms.push(transform);
+			}
+		}
+		
+		// aspect ratio
+		svg.AspectRatio = function(ctx, aspectRatio, width, desiredWidth, height, desiredHeight, minX, minY, refX, refY) {
+			// aspect ratio - http://www.w3.org/TR/SVG/coords.html#PreserveAspectRatioAttribute
+			aspectRatio = svg.compressSpaces(aspectRatio);
+			aspectRatio = aspectRatio.replace(/^defer\s/,''); // ignore defer
+			var align = aspectRatio.split(' ')[0] || 'xMidYMid';
+			var meetOrSlice = aspectRatio.split(' ')[1] || 'meet';					
+	
+			// calculate scale
+			var scaleX = width / desiredWidth;
+			var scaleY = height / desiredHeight;
+			var scaleMin = Math.min(scaleX, scaleY);
+			var scaleMax = Math.max(scaleX, scaleY);
+			if (meetOrSlice == 'meet') { desiredWidth *= scaleMin; desiredHeight *= scaleMin; }
+			if (meetOrSlice == 'slice') { desiredWidth *= scaleMax; desiredHeight *= scaleMax; }	
+			
+			refX = new svg.Property('refX', refX);
+			refY = new svg.Property('refY', refY);
+			if (refX.hasValue() && refY.hasValue()) {				
+				ctx.translate(-scaleMin * refX.Length.toPixels('x'), -scaleMin * refY.Length.toPixels('y'));
+			} 
+			else {					
+				// align
+				if (align.match(/^xMid/) && ((meetOrSlice == 'meet' && scaleMin == scaleY) || (meetOrSlice == 'slice' && scaleMax == scaleY))) ctx.translate(width / 2.0 - desiredWidth / 2.0, 0); 
+				if (align.match(/YMid$/) && ((meetOrSlice == 'meet' && scaleMin == scaleX) || (meetOrSlice == 'slice' && scaleMax == scaleX))) ctx.translate(0, height / 2.0 - desiredHeight / 2.0); 
+				if (align.match(/^xMax/) && ((meetOrSlice == 'meet' && scaleMin == scaleY) || (meetOrSlice == 'slice' && scaleMax == scaleY))) ctx.translate(width - desiredWidth, 0); 
+				if (align.match(/YMax$/) && ((meetOrSlice == 'meet' && scaleMin == scaleX) || (meetOrSlice == 'slice' && scaleMax == scaleX))) ctx.translate(0, height - desiredHeight); 
+			}
+			
+			// scale
+			if (align == 'none') ctx.scale(scaleX, scaleY);
+			else if (meetOrSlice == 'meet') ctx.scale(scaleMin, scaleMin); 
+			else if (meetOrSlice == 'slice') ctx.scale(scaleMax, scaleMax); 	
+			
+			// translate
+			ctx.translate(minX == null ? 0 : -minX, minY == null ? 0 : -minY);			
+		}
+		
+		// elements
+		svg.Element = {}
+		
+		svg.Element.ElementBase = function(node) {	
+			this.attributes = {};
+			this.styles = {};
+			this.children = [];
+			
+			// get or create attribute
+			this.attribute = function(name, createIfNotExists) {
+				var a = this.attributes[name];
+				if (a != null) return a;
+							
+				a = new svg.Property(name, '');
+				if (createIfNotExists == true) this.attributes[name] = a;
+				return a;
+			}
+			
+			// get or create style, crawls up node tree
+			this.style = function(name, createIfNotExists) {
+				var s = this.styles[name];
+				if (s != null) return s;
+				
+				var a = this.attribute(name);
+				if (a != null && a.hasValue()) {
+					return a;
+				}
+				
+				var p = this.parent;
+				if (p != null) {
+					var ps = p.style(name);
+					if (ps != null && ps.hasValue()) {
+						return ps;
+					}
+				}
+					
+				s = new svg.Property(name, '');
+				if (createIfNotExists == true) this.styles[name] = s;
+				return s;
+			}
+			
+			// base render
+			this.render = function(ctx) {
+				// don't render display=none
+				if (this.style('display').value == 'none') return;
+				
+				// don't render visibility=hidden
+				if (this.attribute('visibility').value == 'hidden') return;
+			
+				ctx.save();
+					this.setContext(ctx);
+						// mask
+						if (this.attribute('mask').hasValue()) {
+							var mask = this.attribute('mask').Definition.getDefinition();
+							if (mask != null) mask.apply(ctx, this);
+						}
+						else if (this.style('filter').hasValue()) {
+							var filter = this.style('filter').Definition.getDefinition();
+							if (filter != null) filter.apply(ctx, this);
+						}
+						else this.renderChildren(ctx);				
+					this.clearContext(ctx);
+				ctx.restore();
+			}
+			
+			// base set context
+			this.setContext = function(ctx) {
+				// OVERRIDE ME!
+			}
+			
+			// base clear context
+			this.clearContext = function(ctx) {
+				// OVERRIDE ME!
+			}			
+			
+			// base render children
+			this.renderChildren = function(ctx) {
+				for (var i=0; i<this.children.length; i++) {
+					this.children[i].render(ctx);
+				}
+			}
+			
+			this.addChild = function(childNode, create) {
+				var child = childNode;
+				if (create) child = svg.CreateElement(childNode);
+				child.parent = this;
+				this.children.push(child);			
+			}
+				
+			if (node != null && node.nodeType == 1) { //ELEMENT_NODE
+				// add children
+				for (var i=0; i<node.childNodes.length; i++) {
+					var childNode = node.childNodes[i];
+					if (childNode.nodeType == 1) this.addChild(childNode, true); //ELEMENT_NODE
+				}
+				
+				// add attributes
+				for (var i=0; i<node.attributes.length; i++) {
+					var attribute = node.attributes[i];
+					this.attributes[attribute.nodeName] = new svg.Property(attribute.nodeName, attribute.nodeValue);
+				}
+										
+				// add tag styles
+				var styles = svg.Styles[node.nodeName];
+				if (styles != null) {
+					for (var name in styles) {
+						this.styles[name] = styles[name];
+					}
+				}					
+				
+				// add class styles
+				if (this.attribute('class').hasValue()) {
+					var classes = svg.compressSpaces(this.attribute('class').value).split(' ');
+					for (var j=0; j<classes.length; j++) {
+						styles = svg.Styles['.'+classes[j]];
+						if (styles != null) {
+							for (var name in styles) {
+								this.styles[name] = styles[name];
+							}
+						}
+						styles = svg.Styles[node.nodeName+'.'+classes[j]];
+						if (styles != null) {
+							for (var name in styles) {
+								this.styles[name] = styles[name];
+							}
+						}
+					}
+				}
+				
+				// add inline styles
+				if (this.attribute('style').hasValue()) {
+					var styles = this.attribute('style').value.split(';');
+					for (var i=0; i<styles.length; i++) {
+						if (svg.trim(styles[i]) != '') {
+							var style = styles[i].split(':');
+							var name = svg.trim(style[0]);
+							var value = svg.trim(style[1]);
+							this.styles[name] = new svg.Property(name, value);
+						}
+					}
+				}	
+
+				// add id
+				if (this.attribute('id').hasValue()) {
+					if (svg.Definitions[this.attribute('id').value] == null) {
+						svg.Definitions[this.attribute('id').value] = this;
+					}
+				}
+			}
+		}
+		
+		svg.Element.RenderedElementBase = function(node) {
+			this.base = svg.Element.ElementBase;
+			this.base(node);
+			
+			this.setContext = function(ctx) {
+				// fill
+				if (this.style('fill').Definition.isUrl()) {
+					var fs = this.style('fill').Definition.getFillStyle(this);
+					if (fs != null) ctx.fillStyle = fs;
+				}
+				else if (this.style('fill').hasValue()) {
+					var fillStyle = this.style('fill');
+					if (this.style('fill-opacity').hasValue()) fillStyle = fillStyle.Color.addOpacity(this.style('fill-opacity').value);
+					ctx.fillStyle = (fillStyle.value == 'none' ? 'rgba(0,0,0,0)' : fillStyle.value);
+