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From snoopd...@apache.org
Subject [29/83] [abbrv] [partial] updated to latest Angular-based admin portal
Date Wed, 05 Feb 2014 17:21:21 GMT
http://git-wip-us.apache.org/repos/asf/incubator-usergrid/blob/508ef2f7/portal/js/libs/Highcharts-2.3.5/js/modules/canvas-tools.src.js
----------------------------------------------------------------------
diff --git a/portal/js/libs/Highcharts-2.3.5/js/modules/canvas-tools.src.js b/portal/js/libs/Highcharts-2.3.5/js/modules/canvas-tools.src.js
new file mode 100644
index 0000000..8e8954d
--- /dev/null
+++ b/portal/js/libs/Highcharts-2.3.5/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);
+				}
+									
+				// stroke
+				if (this.style('stroke').Definition.isUrl()) {
+					var fs = this.style('stroke').Definition.getFillStyle(this);
+					if (fs != null) ctx.strokeStyle = fs;
+				}
+				else if (this.style('stroke').hasValue()) {
+					var strokeStyle = this.style('stroke');
+					if (this.style('stroke-opacity').hasValue()) strokeStyle = strokeStyle.Color.addOpacity(this.style('stroke-opacity').value);
+					ctx.strokeStyle = (strokeStyle.value == 'none' ? 'rgba(0,0,0,0)' : strokeStyle.value);
+				}
+				if (this.style('stroke-width').hasValue()) ctx.lineWidth = this.style('stroke-width').Length.toPixels();
+				if (this.style('stroke-linecap').hasValue()) ctx.lineCap = this.style('stroke-linecap').value;
+				if (this.style('stroke-linejoin').hasValue()) ctx.lineJoin = this.style('stroke-linejoin').value;
+				if (this.style('stroke-miterlimit').hasValue()) ctx.miterLimit = this.style('stroke-miterlimit').value;
+
+				// font
+				if (typeof(ctx.font) != 'undefined') {
+					ctx.font = svg.Font.CreateFont( 
+						this.style('font-style').value, 
+						this.style('font-variant').value, 
+						this.style('font-weight').value, 
+						this.style('font-size').hasValue() ? this.style('font-size').Length.toPixels() + 'px' : '', 
+						this.style('font-family').value).toString();
+				}
+				
+				// transform
+				if (this.attribute('transform').hasValue()) { 
+					var transform = new svg.Transform(this.attribute('transform').value);
+					transform.apply(ctx);
+				}
+				
+				// clip
+				if (this.attribute('clip-path').hasValue()) {
+					var clip = this.attribute('clip-path').Definition.getDefinition();
+					if (clip != null) clip.apply(ctx);
+				}
+				
+				// opacity
+				if (this.style('opacity').hasValue()) {
+					ctx.globalAlpha = this.style('opacity').numValue();
+				}
+			}		
+		}
+		svg.Element.RenderedElementBase.prototype = new svg.Element.ElementBase;
+		
+		svg.Element.PathElementBase = function(node) {
+			this.base = svg.Element.RenderedElementBase;
+			this.base(node);
+			
+			this.path = function(ctx) {
+				if (ctx != null) ctx.beginPath();
+				return new svg.BoundingBox();
+			}
+			
+			this.renderChildren = function(ctx) {
+				this.path(ctx);
+				svg.Mouse.checkPath(this, ctx);
+				if (ctx.fillStyle != '') ctx.fill();
+				if (ctx.strokeStyle != '') ctx.stroke();
+				
+				var markers = this.getMarkers();
+				if (markers != null) {
+					if (this.style('marker-start').Definition.isUrl()) {
+						var marker = this.style('marker-start').Definition.getDefinition();
+						marker.render(ctx, markers[0][0], markers[0][1]);
+					}
+					if (this.style('marker-mid').Definition.isUrl()) {
+						var marker = this.style('marker-mid').Definition.getDefinition();
+						for (var i=1;i<markers.length-1;i++) {
+							marker.render(ctx, markers[i][0], markers[i][1]);
+						}
+					}
+					if (this.style('marker-end').Definition.isUrl()) {
+						var marker = this.style('marker-end').Definition.getDefinition();
+						marker.render(ctx, markers[markers.length-1][0], markers[markers.length-1][1]);
+					}
+				}					
+			}
+			
+			this.getBoundingBox = function() {
+				return this.path();
+			}
+			
+			this.getMarkers = function() {
+				return null;
+			}
+		}
+		svg.Element.PathElementBase.prototype = new svg.Element.RenderedElementBase;
+		
+		// svg element
+		svg.Element.svg = function(node) {
+			this.base = svg.Element.RenderedElementBase;
+			this.base(node);
+			
+			this.baseClearContext = this.clearContext;
+			this.clearContext = function(ctx) {
+				this.baseClearContext(ctx);
+				svg.ViewPort.RemoveCurrent();
+			}
+			
+			this.baseSetContext = this.setContext;
+			this.setContext = function(ctx) {
+				// initial values
+				ctx.strokeStyle = 'rgba(0,0,0,0)';
+				ctx.lineCap = 'butt';
+				ctx.lineJoin = 'miter';
+				ctx.miterLimit = 4;			
+			
+				this.baseSetContext(ctx);
+				
+				// create new view port
+				if (this.attribute('x').hasValue() && this.attribute('y').hasValue()) {
+					ctx.translate(this.attribute('x').Length.toPixels('x'), this.attribute('y').Length.toPixels('y'));
+				}
+				
+				var width = svg.ViewPort.width();
+				var height = svg.ViewPort.height();
+				if (typeof(this.root) == 'undefined' && this.attribute('width').hasValue() && this.attribute('height').hasValue()) {
+					width = this.attribute('width').Length.toPixels('x');
+					height = this.attribute('height').Length.toPixels('y');
+					
+					var x = 0;
+					var y = 0;
+					if (this.attribute('refX').hasValue() && this.attribute('refY').hasValue()) {
+						x = -this.attribute('refX').Length.toPixels('x');
+						y = -this.attribute('refY').Length.toPixels('y');
+					}
+					
+					ctx.beginPath();
+					ctx.moveTo(x, y);
+					ctx.lineTo(width, y);
+					ctx.lineTo(width, height);
+					ctx.lineTo(x, height);
+					ctx.closePath();
+					ctx.clip();
+				}
+				svg.ViewPort.SetCurrent(width, height);	
+						
+				// viewbox
+				if (this.attribute('viewBox').hasValue()) {				
+					var viewBox = svg.ToNumberArray(this.attribute('viewBox').value);
+					var minX = viewBox[0];
+					var minY = viewBox[1];
+					width = viewBox[2];
+					height = viewBox[3];
+					
+					svg.AspectRatio(ctx,
+									this.attribute('preserveAspectRatio').value, 
+									svg.ViewPort.width(), 
+									width,
+									svg.ViewPort.height(),
+									height,
+									minX,
+									minY,
+									this.attribute('refX').value,
+									this.attribute('refY').value);
+										
+					svg.ViewPort.RemoveCurrent();	
+					svg.ViewPort.SetCurrent(viewBox[2], viewBox[3]);						
+				}				
+			}
+		}
+		svg.Element.svg.prototype = new svg.Element.RenderedElementBase;
+
+		// rect element
+		svg.Element.rect = function(node) {
+			this.base = svg.Element.PathElementBase;
+			this.base(node);
+			
+			this.path = function(ctx) {
+				var x = this.attribute('x').Length.toPixels('x');
+				var y = this.attribute('y').Length.toPixels('y');
+				var width = this.attribute('width').Length.toPixels('x');
+				var height = this.attribute('height').Length.toPixels('y');
+				var rx = this.attribute('rx').Length.toPixels('x');
+				var ry = this.attribute('ry').Length.toPixels('y');
+				if (this.attribute('rx').hasValue() && !this.attribute('ry').hasValue()) ry = rx;
+				if (this.attribute('ry').hasValue() && !this.attribute('rx').hasValue()) rx = ry;
+				
+				if (ctx != null) {
+					ctx.beginPath();
+					ctx.moveTo(x + rx, y);
+					ctx.lineTo(x + width - rx, y);
+					ctx.quadraticCurveTo(x + width, y, x + width, y + ry)
+					ctx.lineTo(x + width, y + height - ry);
+					ctx.quadraticCurveTo(x + width, y + height, x + width - rx, y + height)
+					ctx.lineTo(x + rx, y + height);
+					ctx.quadraticCurveTo(x, y + height, x, y + height - ry)
+					ctx.lineTo(x, y + ry);
+					ctx.quadraticCurveTo(x, y, x + rx, y)
+					ctx.closePath();
+				}
+				
+				return new svg.BoundingBox(x, y, x + width, y + height);
+			}
+		}
+		svg.Element.rect.prototype = new svg.Element.PathElementBase;
+		
+		// circle element
+		svg.Element.circle = function(node) {
+			this.base = svg.Element.PathElementBase;
+			this.base(node);
+			
+			this.path = function(ctx) {
+				var cx = this.attribute('cx').Length.toPixels('x');
+				var cy = this.attribute('cy').Length.toPixels('y');
+				var r = this.attribute('r').Length.toPixels();
+			
+				if (ctx != null) {
+					ctx.beginPath();
+					ctx.arc(cx, cy, r, 0, Math.PI * 2, true); 
+					ctx.closePath();
+				}
+				
+				return new svg.BoundingBox(cx - r, cy - r, cx + r, cy + r);
+			}
+		}
+		svg.Element.circle.prototype = new svg.Element.PathElementBase;	
+
+		// ellipse element
+		svg.Element.ellipse = function(node) {
+			this.base = svg.Element.PathElementBase;
+			this.base(node);
+			
+			this.path = function(ctx) {
+				var KAPPA = 4 * ((Math.sqrt(2) - 1) / 3);
+				var rx = this.attribute('rx').Length.toPixels('x');
+				var ry = this.attribute('ry').Length.toPixels('y');
+				var cx = this.attribute('cx').Length.toPixels('x');
+				var cy = this.attribute('cy').Length.toPixels('y');
+				
+				if (ctx != null) {
+					ctx.beginPath();
+					ctx.moveTo(cx, cy - ry);
+					ctx.bezierCurveTo(cx + (KAPPA * rx), cy - ry,  cx + rx, cy - (KAPPA * ry), cx + rx, cy);
+					ctx.bezierCurveTo(cx + rx, cy + (KAPPA * ry), cx + (KAPPA * rx), cy + ry, cx, cy + ry);
+					ctx.bezierCurveTo(cx - (KAPPA * rx), cy + ry, cx - rx, cy + (KAPPA * ry), cx - rx, cy);
+					ctx.bezierCurveTo(cx - rx, cy - (KAPPA * ry), cx - (KAPPA * rx), cy - ry, cx, cy - ry);
+					ctx.closePath();
+				}
+				
+				return new svg.BoundingBox(cx - rx, cy - ry, cx + rx, cy + ry);
+			}
+		}
+		svg.Element.ellipse.prototype = new svg.Element.PathElementBase;			
+		
+		// line element
+		svg.Element.line = function(node) {
+			this.base = svg.Element.PathElementBase;
+			this.base(node);
+			
+			this.getPoints = function() {
+				return [
+					new svg.Point(this.attribute('x1').Length.toPixels('x'), this.attribute('y1').Length.toPixels('y')),
+					new svg.Point(this.attribute('x2').Length.toPixels('x'), this.attribute('y2').Length.toPixels('y'))];
+			}
+								
+			this.path = function(ctx) {
+				var points = this.getPoints();
+				
+				if (ctx != null) {
+					ctx.beginPath();
+					ctx.moveTo(points[0].x, points[0].y);
+					ctx.lineTo(points[1].x, points[1].y);
+				}
+				
+				return new svg.BoundingBox(points[0].x, points[0].y, points[1].x, points[1].y);
+			}
+			
+			this.getMarkers = function() {
+				var points = this.getPoints();	
+				var a = points[0].angleTo(points[1]);
+				return [[points[0], a], [points[1], a]];
+			}
+		}
+		svg.Element.line.prototype = new svg.Element.PathElementBase;		
+				
+		// polyline element
+		svg.Element.polyline = function(node) {
+			this.base = svg.Element.PathElementBase;
+			this.base(node);
+			
+			this.points = svg.CreatePath(this.attribute('points').value);
+			this.path = function(ctx) {
+				var bb = new svg.BoundingBox(this.points[0].x, this.points[0].y);
+				if (ctx != null) {
+					ctx.beginPath();
+					ctx.moveTo(this.points[0].x, this.points[0].y);
+				}
+				for (var i=1; i<this.points.length; i++) {
+					bb.addPoint(this.points[i].x, this.points[i].y);
+					if (ctx != null) ctx.lineTo(this.points[i].x, this.points[i].y);
+				}
+				return bb;
+			}
+			
+			this.getMarkers = function() {
+				var markers = [];
+				for (var i=0; i<this.points.length - 1; i++) {
+					markers.push([this.points[i], this.points[i].angleTo(this.points[i+1])]);
+				}
+				markers.push([this.points[this.points.length-1], markers[markers.length-1][1]]);
+				return markers;
+			}			
+		}
+		svg.Element.polyline.prototype = new svg.Element.PathElementBase;				
+				
+		// polygon element
+		svg.Element.polygon = function(node) {
+			this.base = svg.Element.polyline;
+			this.base(node);
+			
+			this.basePath = this.path;
+			this.path = function(ctx) {
+				var bb = this.basePath(ctx);
+				if (ctx != null) {
+					ctx.lineTo(this.points[0].x, this.points[0].y);
+					ctx.closePath();
+				}
+				return bb;
+			}
+		}
+		svg.Element.polygon.prototype = new svg.Element.polyline;
+
+		// path element
+		svg.Element.path = function(node) {
+			this.base = svg.Element.PathElementBase;
+			this.base(node);
+					
+			var d = this.attribute('d').value;
+			// TODO: convert to real lexer based on http://www.w3.org/TR/SVG11/paths.html#PathDataBNF
+			d = d.replace(/,/gm,' '); // get rid of all commas
+			d = d.replace(/([MmZzLlHhVvCcSsQqTtAa])([MmZzLlHhVvCcSsQqTtAa])/gm,'$1 $2'); // separate commands from commands
+			d = d.replace(/([MmZzLlHhVvCcSsQqTtAa])([MmZzLlHhVvCcSsQqTtAa])/gm,'$1 $2'); // separate commands from commands
+			d = d.replace(/([MmZzLlHhVvCcSsQqTtAa])([^\s])/gm,'$1 $2'); // separate commands from points
+			d = d.replace(/([^\s])([MmZzLlHhVvCcSsQqTtAa])/gm,'$1 $2'); // separate commands from points
+			d = d.replace(/([0-9])([+\-])/gm,'$1 $2'); // separate digits when no comma
+			d = d.replace(/(\.[0-9]*)(\.)/gm,'$1 $2'); // separate digits when no comma
+			d = d.replace(/([Aa](\s+[0-9]+){3})\s+([01])\s*([01])/gm,'$1 $3 $4 '); // shorthand elliptical arc path syntax
+			d = svg.compressSpaces(d); // compress multiple spaces
+			d = svg.trim(d);
+			this.PathParser = new (function(d) {
+				this.tokens = d.split(' ');
+				
+				this.reset = function() {
+					this.i = -1;
+					this.command = '';
+					this.previousCommand = '';
+					this.start = new svg.Point(0, 0);
+					this.control = new svg.Point(0, 0);
+					this.current = new svg.Point(0, 0);
+					this.points = [];
+					this.angles = [];
+				}
+								
+				this.isEnd = function() {
+					return this.i >= this.tokens.length - 1;
+				}
+				
+				this.isCommandOrEnd = function() {
+					if (this.isEnd()) return true;
+					return this.tokens[this.i + 1].match(/^[A-Za-z]$/) != null;
+				}
+				
+				this.isRelativeCommand = function() {
+					return this.command == this.command.toLowerCase();
+				}
+							
+				this.getToken = function() {
+					this.i = this.i + 1;
+					return this.tokens[this.i];
+				}
+				
+				this.getScalar = function() {
+					return parseFloat(this.getToken());
+				}
+				
+				this.nextCommand = function() {
+					this.previousCommand = this.command;
+					this.command = this.getToken();
+				}				
+				
+				this.getPoint = function() {
+					var p = new svg.Point(this.getScalar(), this.getScalar());
+					return this.makeAbsolute(p);
+				}
+				
+				this.getAsControlPoint = function() {
+					var p = this.getPoint();
+					this.control = p;
+					return p;
+				}
+				
+				this.getAsCurrentPoint = function() {
+					var p = this.getPoint();
+					this.current = p;
+					return p;	
+				}
+				
+				this.getReflectedControlPoint = function() {
+					if (this.previousCommand.toLowerCase() != 'c' && this.previousCommand.toLowerCase() != 's') {
+						return this.current;
+					}
+					
+					// reflect point
+					var p = new svg.Point(2 * this.current.x - this.control.x, 2 * this.current.y - this.control.y);					
+					return p;
+				}
+				
+				this.makeAbsolute = function(p) {
+					if (this.isRelativeCommand()) {
+						p.x = this.current.x + p.x;
+						p.y = this.current.y + p.y;
+					}
+					return p;
+				}
+				
+				this.addMarker = function(p, from, priorTo) {
+					// if the last angle isn't filled in because we didn't have this point yet ...
+					if (priorTo != null && this.angles.length > 0 && this.angles[this.angles.length-1] == null) {
+						this.angles[this.angles.length-1] = this.points[this.points.length-1].angleTo(priorTo);
+					}
+					this.addMarkerAngle(p, from == null ? null : from.angleTo(p));
+				}
+				
+				this.addMarkerAngle = function(p, a) {
+					this.points.push(p);
+					this.angles.push(a);
+				}				
+				
+				this.getMarkerPoints = function() { return this.points; }
+				this.getMarkerAngles = function() {
+					for (var i=0; i<this.angles.length; i++) {
+						if (this.angles[i] == null) {
+							for (var j=i+1; j<this.angles.length; j++) {
+								if (this.angles[j] != null) {
+									this.angles[i] = this.angles[j];
+									break;
+								}
+							}
+						}
+					}
+					return this.angles;
+				}
+			})(d);
+
+			this.path = function(ctx) {
+				var pp = this.PathParser;
+				pp.reset();
+
+				var bb = new svg.BoundingBox();
+				if (ctx != null) ctx.beginPath();
+				while (!pp.isEnd()) {
+					pp.nextCommand();
+					switch (pp.command.toUpperCase()) {
+					case 'M':
+						var p = pp.getAsCurrentPoint();
+						pp.addMarker(p);
+						bb.addPoint(p.x, p.y);
+						if (ctx != null) ctx.moveTo(p.x, p.y);
+						pp.start = pp.current;
+						while (!pp.isCommandOrEnd()) {
+							var p = pp.getAsCurrentPoint();
+							pp.addMarker(p, pp.start);
+							bb.addPoint(p.x, p.y);
+							if (ctx != null) ctx.lineTo(p.x, p.y);
+						}
+						break;
+					case 'L':
+						while (!pp.isCommandOrEnd()) {
+							var c = pp.current;
+							var p = pp.getAsCurrentPoint();
+							pp.addMarker(p, c);
+							bb.addPoint(p.x, p.y);
+							if (ctx != null) ctx.lineTo(p.x, p.y);
+						}
+						break;
+					case 'H':
+						while (!pp.isCommandOrEnd()) {
+							var newP = new svg.Point((pp.isRelativeCommand() ? pp.current.x : 0) + pp.getScalar(), pp.current.y);
+							pp.addMarker(newP, pp.current);
+							pp.current = newP;
+							bb.addPoint(pp.current.x, pp.current.y);
+							if (ctx != null) ctx.lineTo(pp.current.x, pp.current.y);
+						}
+						break;
+					case 'V':
+						while (!pp.isCommandOrEnd()) {
+							var newP = new svg.Point(pp.current.x, (pp.isRelativeCommand() ? pp.current.y : 0) + pp.getScalar());
+							pp.addMarker(newP, pp.current);
+							pp.current = newP;
+							bb.addPoint(pp.current.x, pp.current.y);
+							if (ctx != null) ctx.lineTo(pp.current.x, pp.current.y);
+						}
+						break;
+					case 'C':
+						while (!pp.isCommandOrEnd()) {
+							var curr = pp.current;
+							var p1 = pp.getPoint();
+							var cntrl = pp.getAsControlPoint();
+							var cp = pp.getAsCurrentPoint();
+							pp.addMarker(cp, cntrl, p1);
+							bb.addBezierCurve(curr.x, curr.y, p1.x, p1.y, cntrl.x, cntrl.y, cp.x, cp.y);
+							if (ctx != null) ctx.bezierCurveTo(p1.x, p1.y, cntrl.x, cntrl.y, cp.x, cp.y);
+						}
+						break;
+					case 'S':
+						while (!pp.isCommandOrEnd()) {
+							var curr = pp.current;
+							var p1 = pp.getReflectedControlPoint();
+							var cntrl = pp.getAsControlPoint();
+							var cp = pp.getAsCurrentPoint();
+							pp.addMarker(cp, cntrl, p1);
+							bb.addBezierCurve(curr.x, curr.y, p1.x, p1.y, cntrl.x, cntrl.y, cp.x, cp.y);
+							if (ctx != null) ctx.bezierCurveTo(p1.x, p1.y, cntrl.x, cntrl.y, cp.x, cp.y);
+						}
+						break;
+					case 'Q':
+						while (!pp.isCommandOrEnd()) {
+							var curr = pp.current;
+							var cntrl = pp.getAsControlPoint();
+							var cp = pp.getAsCurrentPoint();
+							pp.addMarker(cp, cntrl, cntrl);
+							bb.addQuadraticCurve(curr.x, curr.y, cntrl.x, cntrl.y, cp.x, cp.y);
+							if (ctx != null) ctx.quadraticCurveTo(cntrl.x, cntrl.y, cp.x, cp.y);
+						}
+						break;
+					case 'T':
+						while (!pp.isCommandOrEnd()) {
+							var curr = pp.current;
+							var cntrl = pp.getReflectedControlPoint();
+							pp.control = cntrl;
+							var cp = pp.getAsCurrentPoint();
+							pp.addMarker(cp, cntrl, cntrl);
+							bb.addQuadraticCurve(curr.x, curr.y, cntrl.x, cntrl.y, cp.x, cp.y);
+							if (ctx != null) ctx.quadraticCurveTo(cntrl.x, cntrl.y, cp.x, cp.y);
+						}
+						break;
+					case 'A':
+						while (!pp.isCommandOrEnd()) {
+						    var curr = pp.current;
+							var rx = pp.getScalar();
+							var ry = pp.getScalar();
+							var xAxisRotation = pp.getScalar() * (Math.PI / 180.0);
+							var largeArcFlag = pp.getScalar();
+							var sweepFlag = pp.getScalar();
+							var cp = pp.getAsCurrentPoint();
+
+							// Conversion from endpoint to center parameterization
+							// http://www.w3.org/TR/SVG11/implnote.html#ArcImplementationNotes
+							// x1', y1'
+							var currp = new svg.Point(
+								Math.cos(xAxisRotation) * (curr.x - cp.x) / 2.0 + Math.sin(xAxisRotation) * (curr.y - cp.y) / 2.0,
+								-Math.sin(xAxisRotation) * (curr.x - cp.x) / 2.0 + Math.cos(xAxisRotation) * (curr.y - cp.y) / 2.0
+							);
+							// adjust radii
+							var l = Math.pow(currp.x,2)/Math.pow(rx,2)+Math.pow(currp.y,2)/Math.pow(ry,2);
+							if (l > 1) {
+								rx *= Math.sqrt(l);
+								ry *= Math.sqrt(l);
+							}
+							// cx', cy'
+							var s = (largeArcFlag == sweepFlag ? -1 : 1) * Math.sqrt(
+								((Math.pow(rx,2)*Math.pow(ry,2))-(Math.pow(rx,2)*Math.pow(currp.y,2))-(Math.pow(ry,2)*Math.pow(currp.x,2))) /
+								(Math.pow(rx,2)*Math.pow(currp.y,2)+Math.pow(ry,2)*Math.pow(currp.x,2))
+							);
+							if (isNaN(s)) s = 0;
+							var cpp = new svg.Point(s * rx * currp.y / ry, s * -ry * currp.x / rx);
+							// cx, cy
+							var centp = new svg.Point(
+								(curr.x + cp.x) / 2.0 + Math.cos(xAxisRotation) * cpp.x - Math.sin(xAxisRotation) * cpp.y,
+								(curr.y + cp.y) / 2.0 + Math.sin(xAxisRotation) * cpp.x + Math.cos(xAxisRotation) * cpp.y
+							);
+							// vector magnitude
+							var m = function(v) { return Math.sqrt(Math.pow(v[0],2) + Math.pow(v[1],2)); }
+							// ratio between two vectors
+							var r = function(u, v) { return (u[0]*v[0]+u[1]*v[1]) / (m(u)*m(v)) }
+							// angle between two vectors
+							var a = function(u, v) { return (u[0]*v[1] < u[1]*v[0] ? -1 : 1) * Math.acos(r(u,v)); }
+							// initial angle
+							var a1 = a([1,0], [(currp.x-cpp.x)/rx,(currp.y-cpp.y)/ry]);
+							// angle delta
+							var u = [(currp.x-cpp.x)/rx,(currp.y-cpp.y)/ry];
+							var v = [(-currp.x-cpp.x)/rx,(-currp.y-cpp.y)/ry];
+							var ad = a(u, v);
+							if (r(u,v) <= -1) ad = Math.PI;
+							if (r(u,v) >= 1) ad = 0;
+
+							if (sweepFlag == 0 && ad > 0) ad = ad - 2 * Math.PI;
+							if (sweepFlag == 1 && ad < 0) ad = ad + 2 * Math.PI;
+
+							// for markers
+							var halfWay = new svg.Point(
+								centp.x - rx * Math.cos((a1 + ad) / 2),
+								centp.y - ry * Math.sin((a1 + ad) / 2)
+							);
+							pp.addMarkerAngle(halfWay, (a1 + ad) / 2 + (sweepFlag == 0 ? 1 : -1) * Math.PI / 2);
+							pp.addMarkerAngle(cp, ad + (sweepFlag == 0 ? 1 : -1) * Math.PI / 2);
+
+							bb.addPoint(cp.x, cp.y); // TODO: this is too naive, make it better
+							if (ctx != null) {
+								var r = rx > ry ? rx : ry;
+								var sx = rx > ry ? 1 : rx / ry;
+								var sy = rx > ry ? ry / rx : 1;
+
+								ctx.translate(centp.x, centp.y);
+								ctx.rotate(xAxisRotation);
+								ctx.scale(sx, sy);
+								ctx.arc(0, 0, r, a1, a1 + ad, 1 - sweepFlag);
+								ctx.scale(1/sx, 1/sy);
+								ctx.rotate(-xAxisRotation);
+								ctx.translate(-centp.x, -centp.y);
+							}
+						}
+						break;
+					case 'Z':
+						if (ctx != null) ctx.closePath();
+						pp.current = pp.start;
+					}
+				}
+
+				return bb;
+			}
+
+			this.getMarkers = function() {
+				var points = this.PathParser.getMarkerPoints();
+				var angles = this.PathParser.getMarkerAngles();
+				
+				var markers = [];
+				for (var i=0; i<points.length; i++) {
+					markers.push([points[i], angles[i]]);
+				}
+				return markers;
+			}
+		}
+		svg.Element.path.prototype = new svg.Element.PathElementBase;
+		
+		// pattern element
+		svg.Element.pattern = function(node) {
+			this.base = svg.Element.ElementBase;
+			this.base(node);
+			
+			this.createPattern = function(ctx, element) {
+				// render me using a temporary svg element
+				var tempSvg = new svg.Element.svg();
+				tempSvg.attributes['viewBox'] = new svg.Property('viewBox', this.attribute('viewBox').value);
+				tempSvg.attributes['x'] = new svg.Property('x', this.attribute('x').value);
+				tempSvg.attributes['y'] = new svg.Property('y', this.attribute('y').value);
+				tempSvg.attributes['width'] = new svg.Property('width', this.attribute('width').value);
+				tempSvg.attributes['height'] = new svg.Property('height', this.attribute('height').value);
+				tempSvg.children = this.children;
+				
+				var c = document.createElement('canvas');
+				c.width = this.attribute('width').Length.toPixels('x');
+				c.height = this.attribute('height').Length.toPixels('y');
+				tempSvg.render(c.getContext('2d'));		
+				return ctx.createPattern(c, 'repeat');
+			}
+		}
+		svg.Element.pattern.prototype = new svg.Element.ElementBase;
+		
+		// marker element
+		svg.Element.marker = function(node) {
+			this.base = svg.Element.ElementBase;
+			this.base(node);
+			
+			this.baseRender = this.render;
+			this.render = function(ctx, point, angle) {
+				ctx.translate(point.x, point.y);
+				if (this.attribute('orient').valueOrDefault('auto') == 'auto') ctx.rotate(angle);
+				if (this.attribute('markerUnits').valueOrDefault('strokeWidth') == 'strokeWidth') ctx.scale(ctx.lineWidth, ctx.lineWidth);
+				ctx.save();
+							
+				// render me using a temporary svg element
+				var tempSvg = new svg.Element.svg();
+				tempSvg.attributes['viewBox'] = new svg.Property('viewBox', this.attribute('viewBox').value);
+				tempSvg.attributes['refX'] = new svg.Property('refX', this.attribute('refX').value);
+				tempSvg.attributes['refY'] = new svg.Property('refY', this.attribute('refY').value);
+				tempSvg.attributes['width'] = new svg.Property('width', this.attribute('markerWidth').value);
+				tempSvg.attributes['height'] = new svg.Property('height', this.attribute('markerHeight').value);
+				tempSvg.attributes['fill'] = new svg.Property('fill', this.attribute('fill').valueOrDefault('black'));
+				tempSvg.attributes['stroke'] = new svg.Property('stroke', this.attribute('stroke').valueOrDefault('none'));
+				tempSvg.children = this.children;
+				tempSvg.render(ctx);
+				
+				ctx.restore();
+				if (this.attribute('markerUnits').valueOrDefault('strokeWidth') == 'strokeWidth') ctx.scale(1/ctx.lineWidth, 1/ctx.lineWidth);
+				if (this.attribute('orient').valueOrDefault('auto') == 'auto') ctx.rotate(-angle);
+				ctx.translate(-point.x, -point.y);
+			}
+		}
+		svg.Element.marker.prototype = new svg.Element.ElementBase;
+		
+		// definitions element
+		svg.Element.defs = function(node) {
+			this.base = svg.Element.ElementBase;
+			this.base(node);	
+			
+			this.render = function(ctx) {
+				// NOOP
+			}
+		}
+		svg.Element.defs.prototype = new svg.Element.ElementBase;
+		
+		// base for gradients
+		svg.Element.GradientBase = function(node) {
+			this.base = svg.Element.ElementBase;
+			this.base(node);
+			
+			this.gradientUnits = this.attribute('gradientUnits').valueOrDefault('objectBoundingBox');
+			
+			this.stops = [];			
+			for (var i=0; i<this.children.length; i++) {
+				var child = this.children[i];
+				this.stops.push(child);
+			}	
+			
+			this.getGradient = function() {
+				// OVERRIDE ME!
+			}			
+
+			this.createGradient = function(ctx, element) {
+				var stopsContainer = this;
+				if (this.attribute('xlink:href').hasValue()) {
+					stopsContainer = this.attribute('xlink:href').Definition.getDefinition();
+				}
+			
+				var g = this.getGradient(ctx, element);
+				for (var i=0; i<stopsContainer.stops.length; i++) {
+					g.addColorStop(stopsContainer.stops[i].offset, stopsContainer.stops[i].color);
+				}
+				
+				if (this.attribute('gradientTransform').hasValue()) {
+					// render as transformed pattern on temporary canvas
+					var rootView = svg.ViewPort.viewPorts[0];
+					
+					var rect = new svg.Element.rect();
+					rect.attributes['x'] = new svg.Property('x', -svg.MAX_VIRTUAL_PIXELS/3.0);
+					rect.attributes['y'] = new svg.Property('y', -svg.MAX_VIRTUAL_PIXELS/3.0);
+					rect.attributes['width'] = new svg.Property('width', svg.MAX_VIRTUAL_PIXELS);
+					rect.attributes['height'] = new svg.Property('height', svg.MAX_VIRTUAL_PIXELS);
+					
+					var group = new svg.Element.g();
+					group.attributes['transform'] = new svg.Property('transform', this.attribute('gradientTransform').value);
+					group.children = [ rect ];
+					
+					var tempSvg = new svg.Element.svg();
+					tempSvg.attributes['x'] = new svg.Property('x', 0);
+					tempSvg.attributes['y'] = new svg.Property('y', 0);
+					tempSvg.attributes['width'] = new svg.Property('width', rootView.width);
+					tempSvg.attributes['height'] = new svg.Property('height', rootView.height);
+					tempSvg.children = [ group ];
+					
+					var c = document.createElement('canvas');
+					c.width = rootView.width;
+					c.height = rootView.height;
+					var tempCtx = c.getContext('2d');
+					tempCtx.fillStyle = g;
+					tempSvg.render(tempCtx);		
+					return tempCtx.createPattern(c, 'no-repeat');
+				}
+				
+				return g;				
+			}
+		}
+		svg.Element.GradientBase.prototype = new svg.Element.ElementBase;
+		
+		// linear gradient element
+		svg.Element.linearGradient = function(node) {
+			this.base = svg.Element.GradientBase;
+			this.base(node);
+			
+			this.getGradient = function(ctx, element) {
+				var bb = element.getBoundingBox();
+				
+				var x1 = (this.gradientUnits == 'objectBoundingBox' 
+					? bb.x() + bb.width() * this.attribute('x1').numValue() 
+					: this.attribute('x1').Length.toPixels('x'));
+				var y1 = (this.gradientUnits == 'objectBoundingBox' 
+					? bb.y() + bb.height() * this.attribute('y1').numValue()
+					: this.attribute('y1').Length.toPixels('y'));
+				var x2 = (this.gradientUnits == 'objectBoundingBox' 
+					? bb.x() + bb.width() * this.attribute('x2').numValue()
+					: this.attribute('x2').Length.toPixels('x'));
+				var y2 = (this.gradientUnits == 'objectBoundingBox' 
+					? bb.y() + bb.height() * this.attribute('y2').numValue()
+					: this.attribute('y2').Length.toPixels('y'));
+
+				return ctx.createLinearGradient(x1, y1, x2, y2);
+			}
+		}
+		svg.Element.linearGradient.prototype = new svg.Element.GradientBase;
+		
+		// radial gradient element
+		svg.Element.radialGradient = function(node) {
+			this.base = svg.Element.GradientBase;
+			this.base(node);
+			
+			this.getGradient = function(ctx, element) {
+				var bb = element.getBoundingBox();
+				
+				var cx = (this.gradientUnits == 'objectBoundingBox' 
+					? bb.x() + bb.width() * this.attribute('cx').numValue() 
+					: this.attribute('cx').Length.toPixels('x'));
+				var cy = (this.gradientUnits == 'objectBoundingBox' 
+					? bb.y() + bb.height() * this.attribute('cy').numValue() 
+					: this.attribute('cy').Length.toPixels('y'));
+				
+				var fx = cx;
+				var fy = cy;
+				if (this.attribute('fx').hasValue()) {
+					fx = (this.gradientUnits == 'objectBoundingBox' 
+					? bb.x() + bb.width() * this.attribute('fx').numValue() 
+					: this.attribute('fx').Length.toPixels('x'));
+				}
+				if (this.attribute('fy').hasValue()) {
+					fy = (this.gradientUnits == 'objectBoundingBox' 
+					? bb.y() + bb.height() * this.attribute('fy').numValue() 
+					: this.attribute('fy').Length.toPixels('y'));
+				}
+				
+				var r = (this.gradientUnits == 'objectBoundingBox' 
+					? (bb.width() + bb.height()) / 2.0 * this.attribute('r').numValue()
+					: this.attribute('r').Length.toPixels());
+				
+				return ctx.createRadialGradient(fx, fy, 0, cx, cy, r);
+			}
+		}
+		svg.Element.radialGradient.prototype = new svg.Element.GradientBase;
+		
+		// gradient stop element
+		svg.Element.stop = function(node) {
+			this.base = svg.Element.ElementBase;
+			this.base(node);
+			
+			this.offset = this.attribute('offset').numValue();
+			
+			var stopColor = this.style('stop-color');
+			if (this.style('stop-opacity').hasValue()) stopColor = stopColor.Color.addOpacity(this.style('stop-opacity').value);
+			this.color = stopColor.value;
+		}
+		svg.Element.stop.prototype = new svg.Element.ElementBase;
+		
+		// animation base element
+		svg.Element.AnimateBase = function(node) {
+			this.base = svg.Element.ElementBase;
+			this.base(node);
+			
+			svg.Animations.push(this);
+			
+			this.duration = 0.0;
+			this.begin = this.attribute('begin').Time.toMilliseconds();
+			this.maxDuration = this.begin + this.attribute('dur').Time.toMilliseconds();
+			
+			this.getProperty = function() {
+				var attributeType = this.attribute('attributeType').value;
+				var attributeName = this.attribute('attributeName').value;
+				
+				if (attributeType == 'CSS') {
+					return this.parent.style(attributeName, true);
+				}
+				return this.parent.attribute(attributeName, true);			
+			};
+			
+			this.initialValue = null;
+			this.removed = false;			
+
+			this.calcValue = function() {
+				// OVERRIDE ME!
+				return '';
+			}
+			
+			this.update = function(delta) {	
+				// set initial value
+				if (this.initialValue == null) {
+					this.initialValue = this.getProperty().value;
+				}
+			
+				// if we're past the end time
+				if (this.duration > this.maxDuration) {
+					// loop for indefinitely repeating animations
+					if (this.attribute('repeatCount').value == 'indefinite') {
+						this.duration = 0.0
+					}
+					else if (this.attribute('fill').valueOrDefault('remove') == 'remove' && !this.removed) {
+						this.removed = true;
+						this.getProperty().value = this.initialValue;
+						return true;
+					}
+					else {
+						return false; // no updates made
+					}
+				}			
+				this.duration = this.duration + delta;
+			
+				// if we're past the begin time
+				var updated = false;
+				if (this.begin < this.duration) {
+					var newValue = this.calcValue(); // tween
+					
+					if (this.attribute('type').hasValue()) {
+						// for transform, etc.
+						var type = this.attribute('type').value;
+						newValue = type + '(' + newValue + ')';
+					}
+					
+					this.getProperty().value = newValue;
+					updated = true;
+				}
+				
+				return updated;
+			}
+			
+			// fraction of duration we've covered
+			this.progress = function() {
+				return ((this.duration - this.begin) / (this.maxDuration - this.begin));
+			}			
+		}
+		svg.Element.AnimateBase.prototype = new svg.Element.ElementBase;
+		
+		// animate element
+		svg.Element.animate = function(node) {
+			this.base = svg.Element.AnimateBase;
+			this.base(node);
+			
+			this.calcValue = function() {
+				var from = this.attribute('from').numValue();
+				var to = this.attribute('to').numValue();
+				
+				// tween value linearly
+				return from + (to - from) * this.progress(); 
+			};
+		}
+		svg.Element.animate.prototype = new svg.Element.AnimateBase;
+			
+		// animate color element
+		svg.Element.animateColor = function(node) {
+			this.base = svg.Element.AnimateBase;
+			this.base(node);
+
+			this.calcValue = function() {
+				var from = new RGBColor(this.attribute('from').value);
+				var to = new RGBColor(this.attribute('to').value);
+				
+				if (from.ok && to.ok) {
+					// tween color linearly
+					var r = from.r + (to.r - from.r) * this.progress();
+					var g = from.g + (to.g - from.g) * this.progress();
+					var b = from.b + (to.b - from.b) * this.progress();
+					return 'rgb('+parseInt(r,10)+','+parseInt(g,10)+','+parseInt(b,10)+')';
+				}
+				return this.attribute('from').value;
+			};
+		}
+		svg.Element.animateColor.prototype = new svg.Element.AnimateBase;
+		
+		// animate transform element
+		svg.Element.animateTransform = function(node) {
+			this.base = svg.Element.animate;
+			this.base(node);
+		}
+		svg.Element.animateTransform.prototype = new svg.Element.animate;
+		
+		// font element
+		svg.Element.font = function(node) {
+			this.base = svg.Element.ElementBase;
+			this.base(node);
+
+			this.horizAdvX = this.attribute('horiz-adv-x').numValue();			
+			
+			this.isRTL = false;
+			this.isArabic = false;
+			this.fontFace = null;
+			this.missingGlyph = null;
+			this.glyphs = [];			
+			for (var i=0; i<this.children.length; i++) {
+				var child = this.children[i];
+				if (child.type == 'font-face') {
+					this.fontFace = child;
+					if (child.style('font-family').hasValue()) {
+						svg.Definitions[child.style('font-family').value] = this;
+					}
+				}
+				else if (child.type == 'missing-glyph') this.missingGlyph = child;
+				else if (child.type == 'glyph') {
+					if (child.arabicForm != '') {
+						this.isRTL = true;
+						this.isArabic = true;
+						if (typeof(this.glyphs[child.unicode]) == 'undefined') this.glyphs[child.unicode] = [];
+						this.glyphs[child.unicode][child.arabicForm] = child;
+					}
+					else {
+						this.glyphs[child.unicode] = child;
+					}
+				}
+			}	
+		}
+		svg.Element.font.prototype = new svg.Element.ElementBase;
+		
+		// font-face element
+		svg.Element.fontface = function(node) {
+			this.base = svg.Element.ElementBase;
+			this.base(node);	
+			
+			this.ascent = this.attribute('ascent').value;
+			this.descent = this.attribute('descent').value;
+			this.unitsPerEm = this.attribute('units-per-em').numValue();				
+		}
+		svg.Element.fontface.prototype = new svg.Element.ElementBase;
+		
+		// missing-glyph element
+		svg.Element.missingglyph = function(node) {
+			this.base = svg.Element.path;
+			this.base(node);	
+			
+			this.horizAdvX = 0;
+		}
+		svg.Element.missingglyph.prototype = new svg.Element.path;
+		
+		// glyph element
+		svg.Element.glyph = function(node) {
+			this.base = svg.Element.path;
+			this.base(node);	
+			
+			this.horizAdvX = this.attribute('horiz-adv-x').numValue();
+			this.unicode = this.attribute('unicode').value;
+			this.arabicForm = this.attribute('arabic-form').value;
+		}
+		svg.Element.glyph.prototype = new svg.Element.path;
+		
+		// text element
+		svg.Element.text = function(node) {
+			this.base = svg.Element.RenderedElementBase;
+			this.base(node);
+			
+			if (node != null) {
+				// add children
+				this.children = [];
+				for (var i=0; i<node.childNodes.length; i++) {
+					var childNode = node.childNodes[i];
+					if (childNode.nodeType == 1) { // capture tspan and tref nodes
+						this.addChild(childNode, true);
+					}
+					else if (childNode.nodeType == 3) { // capture text
+						this.addChild(new svg.Element.tspan(childNode), false);
+					}
+				}
+			}
+			
+			this.baseSetContext = this.setContext;
+			this.setContext = function(ctx) {
+				this.baseSetContext(ctx);
+				if (this.style('dominant-baseline').hasValue()) ctx.textBaseline = this.style('dominant-baseline').value;
+				if (this.style('alignment-baseline').hasValue()) ctx.textBaseline = this.style('alignment-baseline').value;
+			}
+			
+			this.renderChildren = function(ctx) {
+				var textAnchor = this.style('text-anchor').valueOrDefault('start');
+				var x = this.attribute('x').Length.toPixels('x');
+				var y = this.attribute('y').Length.toPixels('y');
+				for (var i=0; i<this.children.length; i++) {
+					var child = this.children[i];
+				
+					if (child.attribute('x').hasValue()) {
+						child.x = child.attribute('x').Length.toPixels('x');
+					}
+					else {
+						if (child.attribute('dx').hasValue()) x += child.attribute('dx').Length.toPixels('x');
+						child.x = x;
+					}
+					
+					var childLength = child.measureText(ctx);
+					if (textAnchor != 'start' && (i==0 || child.attribute('x').hasValue())) { // new group?
+						// loop through rest of children
+						var groupLength = childLength;
+						for (var j=i+1; j<this.children.length; j++) {
+							var childInGroup = this.children[j];
+							if (childInGroup.attribute('x').hasValue()) break; // new group
+							groupLength += childInGroup.measureText(ctx);
+						}
+						child.x -= (textAnchor == 'end' ? groupLength : groupLength / 2.0);
+					}
+					x = child.x + childLength;
+					
+					if (child.attribute('y').hasValue()) {
+						child.y = child.attribute('y').Length.toPixels('y');
+					}
+					else {
+						if (child.attribute('dy').hasValue()) y += child.attribute('dy').Length.toPixels('y');
+						child.y = y;
+					}	
+					y = child.y;
+					
+					child.render(ctx);
+				}
+			}
+		}
+		svg.Element.text.prototype = new svg.Element.RenderedElementBase;
+		
+		// text base
+		svg.Element.TextElementBase = function(node) {
+			this.base = svg.Element.RenderedElementBase;
+			this.base(node);
+			
+			this.getGlyph = function(font, text, i) {
+				var c = text[i];
+				var glyph = null;
+				if (font.isArabic) {
+					var arabicForm = 'isolated';
+					if ((i==0 || text[i-1]==' ') && i<text.length-2 && text[i+1]!=' ') arabicForm = 'terminal'; 
+					if (i>0 && text[i-1]!=' ' && i<text.length-2 && text[i+1]!=' ') arabicForm = 'medial';
+					if (i>0 && text[i-1]!=' ' && (i == text.length-1 || text[i+1]==' ')) arabicForm = 'initial';
+					if (typeof(font.glyphs[c]) != 'undefined') {
+						glyph = font.glyphs[c][arabicForm];
+						if (glyph == null && font.glyphs[c].type == 'glyph') glyph = font.glyphs[c];
+					}
+				}
+				else {
+					glyph = font.glyphs[c];
+				}
+				if (glyph == null) glyph = font.missingGlyph;
+				return glyph;
+			}
+			
+			this.renderChildren = function(ctx) {
+				var customFont = this.parent.style('font-family').Definition.getDefinition();
+				if (customFont != null) {
+					var fontSize = this.parent.style('font-size').numValueOrDefault(svg.Font.Parse(svg.ctx.font).fontSize);
+					var fontStyle = this.parent.style('font-style').valueOrDefault(svg.Font.Parse(svg.ctx.font).fontStyle);
+					var text = this.getText();
+					if (customFont.isRTL) text = text.split("").reverse().join("");
+					
+					var dx = svg.ToNumberArray(this.parent.attribute('dx').value);
+					for (var i=0; i<text.length; i++) {
+						var glyph = this.getGlyph(customFont, text, i);
+						var scale = fontSize / customFont.fontFace.unitsPerEm;
+						ctx.translate(this.x, this.y);
+						ctx.scale(scale, -scale);
+						var lw = ctx.lineWidth;
+						ctx.lineWidth = ctx.lineWidth * customFont.fontFace.unitsPerEm / fontSize;
+						if (fontStyle == 'italic') ctx.transform(1, 0, .4, 1, 0, 0);
+						glyph.render(ctx);
+						if (fontStyle == 'italic') ctx.transform(1, 0, -.4, 1, 0, 0);
+						ctx.lineWidth = lw;
+						ctx.scale(1/scale, -1/scale);
+						ctx.translate(-this.x, -this.y);	
+						
+						this.x += fontSize * (glyph.horizAdvX || customFont.horizAdvX) / customFont.fontFace.unitsPerEm;
+						if (typeof(dx[i]) != 'undefined' && !isNaN(dx[i])) {
+							this.x += dx[i];
+						}
+					}
+					return;
+				}
+			
+				if (ctx.strokeStyle != '') ctx.strokeText(svg.compressSpaces(this.getText()), this.x, this.y);
+				if (ctx.fillStyle != '') ctx.fillText(svg.compressSpaces(this.getText()), this.x, this.y);
+			}
+			
+			this.getText = function() {
+				// OVERRIDE ME
+			}
+			
+			this.measureText = function(ctx) {
+				var customFont = this.parent.style('font-family').Definition.getDefinition();
+				if (customFont != null) {
+					var fontSize = this.parent.style('font-size').numValueOrDefault(svg.Font.Parse(svg.ctx.font).fontSize);
+					var measure = 0;
+					var text = this.getText();
+					if (customFont.isRTL) text = text.split("").reverse().join("");
+					var dx = svg.ToNumberArray(this.parent.attribute('dx').value);
+					for (var i=0; i<text.length; i++) {
+						var glyph = this.getGlyph(customFont, text, i);
+						measure += (glyph.horizAdvX || customFont.horizAdvX) * fontSize / customFont.fontFace.unitsPerEm;
+						if (typeof(dx[i]) != 'undefined' && !isNaN(dx[i])) {
+							measure += dx[i];
+						}
+					}
+					return measure;
+				}
+			
+				var textToMeasure = svg.compressSpaces(this.getText());
+				if (!ctx.measureText) return textToMeasure.length * 10;
+				
+				ctx.save();
+				this.setContext(ctx);
+				var width = ctx.measureText(textToMeasure).width;
+				ctx.restore();
+				return width;
+			}
+		}
+		svg.Element.TextElementBase.prototype = new svg.Element.RenderedElementBase;
+		
+		// tspan 
+		svg.Element.tspan = function(node) {
+			this.base = svg.Element.TextElementBase;
+			this.base(node);
+			
+			this.text = node.nodeType == 3 ? node.nodeValue : // text
+						node.childNodes.length > 0 ? node.childNodes[0].nodeValue : // element
+						node.text;
+			this.getText = function() {
+				return this.text;
+			}
+		}
+		svg.Element.tspan.prototype = new svg.Element.TextElementBase;
+		
+		// tref
+		svg.Element.tref = function(node) {
+			this.base = svg.Element.TextElementBase;
+			this.base(node);
+			
+			this.getText = function() {
+				var element = this.attribute('xlink:href').Definition.getDefinition();
+				if (element != null) return element.children[0].getText();
+			}
+		}
+		svg.Element.tref.prototype = new svg.Element.TextElementBase;		
+		
+		// a element
+		svg.Element.a = function(node) {
+			this.base = svg.Element.TextElementBase;
+			this.base(node);
+			
+			this.hasText = true;
+			for (var i=0; i<node.childNodes.length; i++) {
+				if (node.childNodes[i].nodeType != 3) this.hasText = false;
+			}
+			
+			// this might contain text
+			this.text = this.hasText ? node.childNodes[0].nodeValue : '';
+			this.getText = function() {
+				return this.text;
+			}		
+
+			this.baseRenderChildren = this.renderChildren;
+			this.renderChildren = function(ctx) {
+				if (this.hasText) {
+					// render as text element
+					this.baseRenderChildren(ctx);
+					var fontSize = new svg.Property('fontSize', svg.Font.Parse(svg.ctx.font).fontSize);
+					svg.Mouse.checkBoundingBox(this, new svg.BoundingBox(this.x, this.y - fontSize.Length.toPixels('y'), this.x + this.measureText(ctx), this.y));					
+				}
+				else {
+					// render as temporary group
+					var g = new svg.Element.g();
+					g.children = this.children;
+					g.parent = this;
+					g.render(ctx);
+				}
+			}
+			
+			this.onclick = function() {
+				window.open(this.attribute('xlink:href').value);
+			}
+			
+			this.onmousemove = function() {
+				svg.ctx.canvas.style.cursor = 'pointer';
+			}
+		}
+		svg.Element.a.prototype = new svg.Element.TextElementBase;		
+		
+		// image element
+		svg.Element.image = function(node) {
+			this.base = svg.Element.RenderedElementBase;
+			this.base(node);
+			
+			svg.Images.push(this);
+			this.img = document.createElement('img');
+			this.loaded = false;
+			var that = this;
+			this.img.onload = function() { that.loaded = true; }
+			this.img.src = this.attribute('xlink:href').value;
+			
+			this.renderChildren = function(ctx) {
+				var x = this.attribute('x').Length.toPixels('x');
+				var y = this.attribute('y').Length.toPixels('y');
+				
+				var width = this.attribute('width').Length.toPixels('x');
+				var height = this.attribute('height').Length.toPixels('y');			
+				if (width == 0 || height == 0) return;
+			
+				ctx.save();
+				ctx.translate(x, y);
+				svg.AspectRatio(ctx,
+								this.attribute('preserveAspectRatio').value,
+								width,
+								this.img.width,
+								height,
+								this.img.height,
+								0,
+								0);	
+				ctx.drawImage(this.img, 0, 0);			
+				ctx.restore();
+			}
+		}
+		svg.Element.image.prototype = new svg.Element.RenderedElementBase;
+		
+		// group element
+		svg.Element.g = function(node) {
+			this.base = svg.Element.RenderedElementBase;
+			this.base(node);
+			
+			this.getBoundingBox = function() {
+				var bb = new svg.BoundingBox();
+				for (var i=0; i<this.children.length; i++) {
+					bb.addBoundingBox(this.children[i].getBoundingBox());
+				}
+				return bb;
+			};
+		}
+		svg.Element.g.prototype = new svg.Element.RenderedElementBase;
+
+		// symbol element
+		svg.Element.symbol = function(node) {
+			this.base = svg.Element.RenderedElementBase;
+			this.base(node);
+			
+			this.baseSetContext = this.setContext;
+			this.setContext = function(ctx) {		
+				this.baseSetContext(ctx);
+				
+				// viewbox
+				if (this.attribute('viewBox').hasValue()) {				
+					var viewBox = svg.ToNumberArray(this.attribute('viewBox').value);
+					var minX = viewBox[0];
+					var minY = viewBox[1];
+					width = viewBox[2];
+					height = viewBox[3];
+					
+					svg.AspectRatio(ctx,
+									this.attribute('preserveAspectRatio').value, 
+									this.attribute('width').Length.toPixels('x'),
+									width,
+									this.attribute('height').Length.toPixels('y'),
+									height,
+									minX,
+									minY);
+
+					svg.ViewPort.SetCurrent(viewBox[2], viewBox[3]);						
+				}
+			}			
+		}
+		svg.Element.symbol.prototype = new svg.Element.RenderedElementBase;		
+			
+		// style element
+		svg.Element.style = function(node) { 
+			this.base = svg.Element.ElementBase;
+			this.base(node);
+			
+			// text, or spaces then CDATA
+			var css = node.childNodes[0].nodeValue + (node.childNodes.length > 1 ? node.childNodes[1].nodeValue : '');
+			css = css.replace(/(\/\*([^*]|[\r\n]|(\*+([^*\/]|[\r\n])))*\*+\/)|(^[\s]*\/\/.*)/gm, ''); // remove comments
+			css = svg.compressSpaces(css); // replace whitespace
+			var cssDefs = css.split('}');
+			for (var i=0; i<cssDefs.length; i++) {
+				if (svg.trim(cssDefs[i]) != '') {
+					var cssDef = cssDefs[i].split('{');
+					var cssClasses = cssDef[0].split(',');
+					var cssProps = cssDef[1].split(';');
+					for (var j=0; j<cssClasses.length; j++) {
+						var cssClass = svg.trim(cssClasses[j]);
+						if (cssClass != '') {
+							var props = {};
+							for (var k=0; k<cssProps.length; k++) {
+								var prop = cssProps[k].indexOf(':');
+								var name = cssProps[k].substr(0, prop);
+								var value = cssProps[k].substr(prop + 1, cssProps[k].length - prop);
+								if (name != null && value != null) {
+									props[svg.trim(name)] = new svg.Property(svg.trim(name), svg.trim(value));
+								}
+							}
+							svg.Styles[cssClass] = props;
+							if (cssClass == '@font-face') {
+								var fontFamily = props['font-family'].value.replace(/"/g,'');
+								var srcs = props['src'].value.split(',');
+								for (var s=0; s<srcs.length; s++) {
+									if (srcs[s].indexOf('format("svg")') > 0) {
+										var urlStart = srcs[s].indexOf('url');
+										var urlEnd = srcs[s].indexOf(')', urlStart);
+										var url = srcs[s].substr(urlStart + 5, urlEnd - urlStart - 6);
+										var doc = svg.parseXml(svg.ajax(url));
+										var fonts = doc.getElementsByTagName('font');
+										for (var f=0; f<fonts.length; f++) {
+											var font = svg.CreateElement(fonts[f]);
+											svg.Definitions[fontFamily] = font;
+										}
+									}
+								}
+							}
+						}
+					}
+				}
+			}
+		}
+		svg.Element.style.prototype = new svg.Element.ElementBase;
+		
+		// use element 
+		svg.Element.use = function(node) {
+			this.base = svg.Element.RenderedElementBase;
+			this.base(node);
+			
+			this.baseSetContext = this.setContext;
+			this.setContext = function(ctx) {
+				this.baseSetContext(ctx);
+				if (this.attribute('x').hasValue()) ctx.translate(this.attribute('x').Length.toPixels('x'), 0);
+				if (this.attribute('y').hasValue()) ctx.translate(0, this.attribute('y').Length.toPixels('y'));
+			}
+			
+			this.getDefinition = function() {
+				var element = this.attribute('xlink:href').Definition.getDefinition();
+				if (this.attribute('width').hasValue()) element.attribute('width', true).value = this.attribute('width').value;
+				if (this.attribute('height').hasValue()) element.attribute('height', true).value = this.attribute('height').value;
+				return element;
+			}
+			
+			this.path = function(ctx) {
+				var element = this.getDefinition();
+				if (element != null) element.path(ctx);
+			}
+			
+			this.renderChildren = function(ctx) {
+				var element = this.getDefinition();
+				if (element != null) element.render(ctx);
+			}
+		}
+		svg.Element.use.prototype = new svg.Element.RenderedElementBase;
+		
+		// mask element
+		svg.Element.mask = function(node) {
+			this.base = svg.Element.ElementBase;
+			this.base(node);
+						
+			this.apply = function(ctx, element) {
+				// render as temp svg	
+				var x = this.attribute('x').Length.toPixels('x');
+				var y = this.attribute('y').Length.toPixels('y');
+				var width = this.attribute('width').Length.toPixels('x');
+				var height = this.attribute('height').Length.toPixels('y');
+				
+				// temporarily remove mask to avoid recursion
+				var mask = element.attribute('mask').value;
+				element.attribute('mask').value = '';
+				
+					var cMask = document.createElement('canvas');
+					cMask.width = x + width;
+					cMask.height = y + height;
+					var maskCtx = cMask.getContext('2d');
+					this.renderChildren(maskCtx);
+				
+					var c = document.createElement('canvas');
+					c.width = x + width;
+					c.height = y + height;
+					var tempCtx = c.getContext('2d');
+					element.render(tempCtx);
+					tempCtx.globalCompositeOperation = 'destination-in';
+					tempCtx.fillStyle = maskCtx.createPattern(cMask, 'no-repeat');
+					tempCtx.fillRect(0, 0, x + width, y + height);
+					
+					ctx.fillStyle = tempCtx.createPattern(c, 'no-repeat');
+					ctx.fillRect(0, 0, x + width, y + height);
+					
+				// reassign mask
+				element.attribute('mask').value = mask;	
+			}
+			
+			this.render = function(ctx) {
+				// NO RENDER
+			}
+		}
+		svg.Element.mask.prototype = new svg.Element.ElementBase;
+		
+		// clip element
+		svg.Element.clipPath = function(node) {
+			this.base = svg.Element.ElementBase;
+			this.base(node);
+			
+			this.apply = function(ctx) {
+				for (var i=0; i<this.children.length; i++) {
+					if (this.children[i].path) {
+						this.children[i].path(ctx);
+						ctx.clip();
+					}
+				}
+			}
+			
+			this.render = function(ctx) {
+				// NO RENDER
+			}
+		}
+		svg.Element.clipPath.prototype = new svg.Element.ElementBase;
+
+		// filters
+		svg.Element.filter = function(node) {
+			this.base = svg.Element.ElementBase;
+			this.base(node);
+						
+			this.apply = function(ctx, element) {
+				// render as temp svg	
+				var bb = element.getBoundingBox();
+				var x = this.attribute('x').Length.toPixels('x');
+				var y = this.attribute('y').Length.toPixels('y');
+				if (x == 0 || y == 0) {
+					x = bb.x1;
+					y = bb.y1;
+				}
+				var width = this.attribute('width').Length.toPixels('x');
+				var height = this.attribute('height').Length.toPixels('y');
+				if (width == 0 || height == 0) {
+					width = bb.width();
+					height = bb.height();
+				}
+				
+				// temporarily remove filter to avoid recursion
+				var filter = element.style('filter').value;
+				element.style('filter').value = '';
+				
+				// max filter distance
+				var extraPercent = .20;
+				var px = extraPercent * width;
+				var py = extraPercent * height;
+				
+				var c = document.createElement('canvas');
+				c.width = width + 2*px;
+				c.height = height + 2*py;
+				var tempCtx = c.getContext('2d');
+				tempCtx.translate(-x + px, -y + py);
+				element.render(tempCtx);
+			
+				// apply filters
+				for (var i=0; i<this.children.length; i++) {
+					this.children[i].apply(tempCtx, 0, 0, width + 2*px, height + 2*py);
+				}
+				
+				// render on me
+				ctx.drawImage(c, 0, 0, width + 2*px, height + 2*py, x - px, y - py, width + 2*px, height + 2*py);
+				
+				// reassign filter
+				element.style('filter', true).value = filter;	
+			}
+			
+			this.render = function(ctx) {
+				// NO RENDER
+			}		
+		}
+		svg.Element.filter.prototype = new svg.Element.ElementBase;
+		
+		svg.Element.feGaussianBlur = function(node) {
+			this.base = svg.Element.ElementBase;
+			this.base(node);	
+			
+			function make_fgauss(sigma) {
+				sigma = Math.max(sigma, 0.01);			      
+				var len = Math.ceil(sigma * 4.0) + 1;                     
+				mask = [];                               
+				for (var i = 0; i < len; i++) {                             
+					mask[i] = Math.exp(-0.5 * (i / sigma) * (i / sigma));                                           
+				}                                                           
+				return mask; 
+			}
+			
+			function normalize(mask) {
+				var sum = 0;
+				for (var i = 1; i < mask.length; i++) {
+					sum += Math.abs(mask[i]);
+				}
+				sum = 2 * sum + Math.abs(mask[0]);
+				for (var i = 0; i < mask.length; i++) {
+					mask[i] /= sum;
+				}
+				return mask;
+			}
+			
+			function convolve_even(src, dst, mask, width, height) {
+			  for (var y = 0; y < height; y++) {
+				for (var x = 0; x < width; x++) {
+				  var a = imGet(src, x, y, width, height, 3)/255;
+				  for (var rgba = 0; rgba < 4; rgba++) {					  
+					  var sum = mask[0] * (a==0?255:imGet(src, x, y, width, height, rgba)) * (a==0||rgba==3?1:a);
+					  for 

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