/**

 * @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 ? 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 ? child.measureText(ctx) : 0;

					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 ? childInGroup.measureText(ctx) : 0;

						}

						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 (var i = 1; i < mask.length; i++) {

						var a1 = imGet(src, Math.max(x-i,0), y, width, height, 3)/255;

					    var a2 = imGet(src, Math.min(x+i, width-1), y, width, height, 3)/255;

						sum += mask[i] * 

						  ((a1==0?255:imGet(src, Math.max(x-i,0), y, width, height, rgba)) * (a1==0||rgba==3?1:a1) + 

						   (a2==0?255:imGet(src, Math.min(x+i, width-1), y, width, height, rgba)) * (a2==0||rgba==3?1:a2));

					  }

					  imSet(dst, y, x, height, width, rgba, sum);

				  }			  

				}

			  }

			}		



			function imGet(img, x, y, width, height, rgba) {

				return img[y*width*4 + x*4 + rgba];

			}

			

			function imSet(img, x, y, width, height, rgba, val) {

				img[y*width*4 + x*4 + rgba] = val;

			}

						

			function blur(ctx, width, height, sigma)

			{

				var srcData = ctx.getImageData(0, 0, width, height);

				var mask = make_fgauss(sigma);

				mask = normalize(mask);

				tmp = [];

				convolve_even(srcData.data, tmp, mask, width, height);

				convolve_even(tmp, srcData.data, mask, height, width);

				ctx.clearRect(0, 0, width, height);

				ctx.putImageData(srcData, 0, 0);

			}			

		

			this.apply = function(ctx, x, y, width, height) {

				// assuming x==0 && y==0 for now

				blur(ctx, width, height, this.attribute('stdDeviation').numValue());

			}

		}

		svg.Element.filter.prototype = new svg.Element.feGaussianBlur;

		

		// title element, do nothing

		svg.Element.title = function(node) {

		}

		svg.Element.title.prototype = new svg.Element.ElementBase;



		// desc element, do nothing

		svg.Element.desc = function(node) {

		}

		svg.Element.desc.prototype = new svg.Element.ElementBase;		

		

		svg.Element.MISSING = function(node) {

			console.log('ERROR: Element \'' + node.nodeName + '\' not yet implemented.');

		}

		svg.Element.MISSING.prototype = new svg.Element.ElementBase;

		

		// element factory

		svg.CreateElement = function(node) {	

			var className = node.nodeName.replace(/^[^:]+:/,''); // remove namespace

			className = className.replace(/\-/g,''); // remove dashes

			var e = null;

			if (typeof(svg.Element[className]) != 'undefined') {

				e = new svg.Element[className](node);

			}

			else {

				e = new svg.Element.MISSING(node);

			}



			e.type = node.nodeName;

			return e;

		}

				

		// load from url

		svg.load = function(ctx, url) {

			svg.loadXml(ctx, svg.ajax(url));

		}

		

		// load from xml

		svg.loadXml = function(ctx, xml) {

			svg.loadXmlDoc(ctx, svg.parseXml(xml));

		}

		

		svg.loadXmlDoc = function(ctx, dom) {

			svg.init(ctx);

			

			var mapXY = function(p) {

				var e = ctx.canvas;

				while (e) {

					p.x -= e.offsetLeft;

					p.y -= e.offsetTop;

					e = e.offsetParent;

				}

				if (window.scrollX) p.x += window.scrollX;

				if (window.scrollY) p.y += window.scrollY;

				return p;

			}

			

			// bind mouse

			if (svg.opts['ignoreMouse'] != true) {

				ctx.canvas.onclick = function(e) {

					var p = mapXY(new svg.Point(e != null ? e.clientX : event.clientX, e != null ? e.clientY : event.clientY));

					svg.Mouse.onclick(p.x, p.y);

				};

				ctx.canvas.onmousemove = function(e) {

					var p = mapXY(new svg.Point(e != null ? e.clientX : event.clientX, e != null ? e.clientY : event.clientY));

					svg.Mouse.onmousemove(p.x, p.y);

				};

			}

		

			var e = svg.CreateElement(dom.documentElement);

			e.root = true;

					

			// render loop

			var isFirstRender = true;

			var draw = function() {

				svg.ViewPort.Clear();

				if (ctx.canvas.parentNode) svg.ViewPort.SetCurrent(ctx.canvas.parentNode.clientWidth, ctx.canvas.parentNode.clientHeight);

			

				if (svg.opts['ignoreDimensions'] != true) {

					// set canvas size

					if (e.style('width').hasValue()) {

						ctx.canvas.width = e.style('width').Length.toPixels('x');

						ctx.canvas.style.width = ctx.canvas.width + 'px';

					}

					if (e.style('height').hasValue()) {

						ctx.canvas.height = e.style('height').Length.toPixels('y');

						ctx.canvas.style.height = ctx.canvas.height + 'px';

					}

				}

				var cWidth = ctx.canvas.clientWidth || ctx.canvas.width;

				var cHeight = ctx.canvas.clientHeight || ctx.canvas.height;

				svg.ViewPort.SetCurrent(cWidth, cHeight);		

				

				if (svg.opts != null && svg.opts['offsetX'] != null) e.attribute('x', true).value = svg.opts['offsetX'];

				if (svg.opts != null && svg.opts['offsetY'] != null) e.attribute('y', true).value = svg.opts['offsetY'];

				if (svg.opts != null && svg.opts['scaleWidth'] != null && svg.opts['scaleHeight'] != null) {

					var xRatio = 1, yRatio = 1;

					if (e.attribute('width').hasValue()) xRatio = e.attribute('width').Length.toPixels('x') / svg.opts['scaleWidth'];

					if (e.attribute('height').hasValue()) yRatio = e.attribute('height').Length.toPixels('y') / svg.opts['scaleHeight'];

				

					e.attribute('width', true).value = svg.opts['scaleWidth'];

					e.attribute('height', true).value = svg.opts['scaleHeight'];			

					e.attribute('viewBox', true).value = '0 0 ' + (cWidth * xRatio) + ' ' + (cHeight * yRatio);

					e.attribute('preserveAspectRatio', true).value = 'none';

				}

			

				// clear and render

				if (svg.opts['ignoreClear'] != true) {

					ctx.clearRect(0, 0, cWidth, cHeight);

				}

				e.render(ctx);

				if (isFirstRender) {

					isFirstRender = false;

					if (svg.opts != null && typeof(svg.opts['renderCallback']) == 'function') svg.opts['renderCallback']();

				}			

			}

			

			var waitingForImages = true;

			if (svg.ImagesLoaded()) {

				waitingForImages = false;

				draw();

			}

			svg.intervalID = setInterval(function() { 

				var needUpdate = false;

				

				if (waitingForImages && svg.ImagesLoaded()) {

					waitingForImages = false;

					needUpdate = true;

				}

			

				// need update from mouse events?

				if (svg.opts['ignoreMouse'] != true) {

					needUpdate = needUpdate | svg.Mouse.hasEvents();

				}

			

				// need update from animations?

				if (svg.opts['ignoreAnimation'] != true) {

					for (var i=0; i<svg.Animations.length; i++) {

						needUpdate = needUpdate | svg.Animations[i].update(1000 / svg.FRAMERATE);

					}

				}

				

				// need update from redraw?

				if (svg.opts != null && typeof(svg.opts['forceRedraw']) == 'function') {

					if (svg.opts['forceRedraw']() == true) needUpdate = true;

				}

				

				// render if needed

				if (needUpdate) {

					draw();				

					svg.Mouse.runEvents(); // run and clear our events

				}

			}, 1000 / svg.FRAMERATE);

		}

		

		svg.stop = function() {

			if (svg.intervalID) {

				clearInterval(svg.intervalID);

			}

		}

		

		svg.Mouse = new (function() {

			this.events = [];

			this.hasEvents = function() { return this.events.length != 0; }

		

			this.onclick = function(x, y) {

				this.events.push({ type: 'onclick', x: x, y: y, 

					run: function(e) { if (e.onclick) e.onclick(); }

				});

			}

			

			this.onmousemove = function(x, y) {

				this.events.push({ type: 'onmousemove', x: x, y: y,

					run: function(e) { if (e.onmousemove) e.onmousemove(); }

				});

			}			

			

			this.eventElements = [];

			

			this.checkPath = function(element, ctx) {

				for (var i=0; i<this.events.length; i++) {

					var e = this.events[i];

					if (ctx.isPointInPath && ctx.isPointInPath(e.x, e.y)) this.eventElements[i] = element;

				}

			}

			

			this.checkBoundingBox = function(element, bb) {

				for (var i=0; i<this.events.length; i++) {

					var e = this.events[i];

					if (bb.isPointInBox(e.x, e.y)) this.eventElements[i] = element;

				}			

			}

			

			this.runEvents = function() {

				svg.ctx.canvas.style.cursor = '';

				

				for (var i=0; i<this.events.length; i++) {

					var e = this.events[i];

					var element = this.eventElements[i];

					while (element) {

						e.run(element);

						element = element.parent;

					}

				}		

			

				// done running, clear

				this.events = []; 

				this.eventElements = [];

			}

		});

		

		return svg;

	}

})();



if (CanvasRenderingContext2D) {

	CanvasRenderingContext2D.prototype.drawSvg = function(s, dx, dy, dw, dh) {

		canvg(this.canvas, s, { 

			ignoreMouse: true, 

			ignoreAnimation: true, 

			ignoreDimensions: true, 

			ignoreClear: true, 

			offsetX: dx, 

			offsetY: dy, 

			scaleWidth: dw, 

			scaleHeight: dh

		});

	}

}/**

 * @license Highcharts JS v4.1.9 (2015-10-07)

 * CanVGRenderer Extension module

 *

 * (c) 2011-2012 Torstein Honsi, Erik Olsson

 *

 * License: www.highcharts.com/license

 */



// JSLint options:

/*global Highcharts */



(function (Highcharts) { // encapsulate

	var UNDEFINED,

		DIV = 'div',

		ABSOLUTE = 'absolute',

		RELATIVE = 'relative',

		HIDDEN = 'hidden',

		VISIBLE = 'visible',

		PX = 'px',

		css = Highcharts.css,

		CanVGRenderer = Highcharts.CanVGRenderer,

		SVGRenderer = Highcharts.SVGRenderer,

		extend = Highcharts.extend,

		merge = Highcharts.merge,

		addEvent = Highcharts.addEvent,

		createElement = Highcharts.createElement,

		discardElement = Highcharts.discardElement;



	// Extend CanVG renderer on demand, inherit from SVGRenderer

	extend(CanVGRenderer.prototype, SVGRenderer.prototype);



	// Add additional functionality:

	extend(CanVGRenderer.prototype, {

		create: function (chart, container, chartWidth, chartHeight) {

			this.setContainer(container, chartWidth, chartHeight);

			this.configure(chart);

		},

		setContainer: function (container, chartWidth, chartHeight) {

			var containerStyle = container.style,

				containerParent = container.parentNode,

				containerLeft = containerStyle.left,

				containerTop = containerStyle.top,

				containerOffsetWidth = container.offsetWidth,

				containerOffsetHeight = container.offsetHeight,

				canvas,

				initialHiddenStyle = { visibility: HIDDEN, position: ABSOLUTE };



			this.init.apply(this, [container, chartWidth, chartHeight]);



			// add the canvas above it

			canvas = createElement('canvas', {

				width: containerOffsetWidth,

				height: containerOffsetHeight

			}, {

				position: RELATIVE,

				left: containerLeft,

				top: containerTop

			}, container);

			this.canvas = canvas;



			// Create the tooltip line and div, they are placed as siblings to

			// the container (and as direct childs to the div specified in the html page)

			this.ttLine = createElement(DIV, null, initialHiddenStyle, containerParent);

			this.ttDiv = createElement(DIV, null, initialHiddenStyle, containerParent);

			this.ttTimer = UNDEFINED;



			// Move away the svg node to a new div inside the container's parent so we can hide it.

			var hiddenSvg = createElement(DIV, {

				width: containerOffsetWidth,

				height: containerOffsetHeight

			}, {

				visibility: HIDDEN,

				left: containerLeft,

				top: containerTop

			}, containerParent);

			this.hiddenSvg = hiddenSvg;

			hiddenSvg.appendChild(this.box);

		},



		/**

		 * Configures the renderer with the chart. Attach a listener to the event tooltipRefresh.

		 **/

		configure: function (chart) {

			var renderer = this,

				options = chart.options.tooltip,

				borderWidth = options.borderWidth,

				tooltipDiv = renderer.ttDiv,

				tooltipDivStyle = options.style,

				tooltipLine = renderer.ttLine,

				padding = parseInt(tooltipDivStyle.padding, 10);



			// Add border styling from options to the style

			tooltipDivStyle = merge(tooltipDivStyle, {

				padding: padding + PX,

				'background-color': options.backgroundColor,

				'border-style': 'solid',

				'border-width': borderWidth + PX,

				'border-radius': options.borderRadius + PX

			});



			// Optionally add shadow

			if (options.shadow) {

				tooltipDivStyle = merge(tooltipDivStyle, {

					'box-shadow': '1px 1px 3px gray', // w3c

					'-webkit-box-shadow': '1px 1px 3px gray' // webkit

				});

			}

			css(tooltipDiv, tooltipDivStyle);



			// Set simple style on the line

			css(tooltipLine, {

				'border-left': '1px solid darkgray'

			});



			// This event is triggered when a new tooltip should be shown

			addEvent(chart, 'tooltipRefresh', function (args) {

				var chartContainer = chart.container,

					offsetLeft = chartContainer.offsetLeft,

					offsetTop = chartContainer.offsetTop,

					position;



				// Set the content of the tooltip

				tooltipDiv.innerHTML = args.text;



				// Compute the best position for the tooltip based on the divs size and container size.

				position = chart.tooltip.getPosition(tooltipDiv.offsetWidth, tooltipDiv.offsetHeight, {plotX: args.x, plotY: args.y});



				css(tooltipDiv, {

					visibility: VISIBLE,

					left: position.x + PX,

					top: position.y + PX,

					'border-color': args.borderColor

				});



				// Position the tooltip line

				css(tooltipLine, {

					visibility: VISIBLE,

					left: offsetLeft + args.x + PX,

					top: offsetTop + chart.plotTop + PX,

					height: chart.plotHeight  + PX

				});



				// This timeout hides the tooltip after 3 seconds

				// First clear any existing timer

				if (renderer.ttTimer !== UNDEFINED) {

					clearTimeout(renderer.ttTimer);

				}



				// Start a new timer that hides tooltip and line

				renderer.ttTimer = setTimeout(function () {

					css(tooltipDiv, { visibility: HIDDEN });

					css(tooltipLine, { visibility: HIDDEN });

				}, 3000);

			});

		},



		/**

		 * Extend SVGRenderer.destroy to also destroy the elements added by CanVGRenderer.

		 */

		destroy: function () {

			var renderer = this;



			// Remove the canvas

			discardElement(renderer.canvas);



			// Kill the timer

			if (renderer.ttTimer !== UNDEFINED) {

				clearTimeout(renderer.ttTimer);

			}



			// Remove the divs for tooltip and line

			discardElement(renderer.ttLine);

			discardElement(renderer.ttDiv);

			discardElement(renderer.hiddenSvg);



			// Continue with base class

			return SVGRenderer.prototype.destroy.apply(renderer);

		},



		/**

		 * Take a color and return it if it's a string, do not make it a gradient even if it is a

		 * gradient. Currently canvg cannot render gradients (turns out black),

		 * see: http://code.google.com/p/canvg/issues/detail?id=104

		 *

		 * @param {Object} color The color or config object

		 */

		color: function (color, elem, prop) {

			if (color && color.linearGradient) {

				// Pick the end color and forward to base implementation

				color = color.stops[color.stops.length - 1][1];

			}

			return SVGRenderer.prototype.color.call(this, color, elem, prop);

		},



		/**

		 * Draws the SVG on the canvas or adds a draw invokation to the deferred list.

		 */

		draw: function () {

			var renderer = this;

			window.canvg(renderer.canvas, renderer.hiddenSvg.innerHTML);

		}

	});

}(Highcharts));

