/**
 *
 * jquery.sparkline.js
 *
 * v2.1.2
 * (c) Splunk, Inc
 * Contact: Gareth Watts (gareth@splunk.com)
 * http://omnipotent.net/jquery.sparkline/
 *
 * Generates inline sparkline charts from data supplied either to the method
 * or inline in HTML
 *
 * Compatible with Internet Explorer 6.0+ and modern browsers equipped with the canvas tag
 * (Firefox 2.0+, Safari, Opera, etc)
 *
 * License: New BSD License
 *
 * Copyright (c) 2012, Splunk Inc.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification,
 * are permitted provided that the following conditions are met:
 *
 *     * Redistributions of source code must retain the above copyright notice,
 *       this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright notice,
 *       this list of conditions and the following disclaimer in the documentation
 *       and/or other materials provided with the distribution.
 *     * Neither the name of Splunk Inc nor the names of its contributors may
 *       be used to endorse or promote products derived from this software without
 *       specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
 * SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 *
 * Usage:
 *  $(selector).sparkline(values, options)
 *
 * If values is undefined or set to 'html' then the data values are read from the specified tag:
 *   <p>Sparkline: <span class="sparkline">1,4,6,6,8,5,3,5</span></p>
 *   $('.sparkline').sparkline();
 * There must be no spaces in the enclosed data set
 *
 * Otherwise values must be an array of numbers or null values
 *    <p>Sparkline: <span id="sparkline1">This text replaced if the browser is compatible</span></p>
 *    $('#sparkline1').sparkline([1,4,6,6,8,5,3,5])
 *    $('#sparkline2').sparkline([1,4,6,null,null,5,3,5])
 *
 * Values can also be specified in an HTML comment, or as a values attribute:
 *    <p>Sparkline: <span class="sparkline"><!--1,4,6,6,8,5,3,5 --></span></p>
 *    <p>Sparkline: <span class="sparkline" values="1,4,6,6,8,5,3,5"></span></p>
 *    $('.sparkline').sparkline();
 *
 * For line charts, x values can also be specified:
 *   <p>Sparkline: <span class="sparkline">1:1,2.7:4,3.4:6,5:6,6:8,8.7:5,9:3,10:5</span></p>
 *    $('#sparkline1').sparkline([ [1,1], [2.7,4], [3.4,6], [5,6], [6,8], [8.7,5], [9,3], [10,5] ])
 *
 * By default, options should be passed in as teh second argument to the sparkline function:
 *   $('.sparkline').sparkline([1,2,3,4], {type: 'bar'})
 *
 * Options can also be set by passing them on the tag itself.  This feature is disabled by default though
 * as there's a slight performance overhead:
 *   $('.sparkline').sparkline([1,2,3,4], {enableTagOptions: true})
 *   <p>Sparkline: <span class="sparkline" sparkType="bar" sparkBarColor="red">loading</span></p>
 * Prefix all options supplied as tag attribute with "spark" (configurable by setting tagOptionPrefix)
 *
 * Supported options:
 *   lineColor - Color of the line used for the chart
 *   fillColor - Color used to fill in the chart - Set to '' or false for a transparent chart
 *   width - Width of the chart - Defaults to 3 times the number of values in pixels
 *   height - Height of the chart - Defaults to the height of the containing element
 *   chartRangeMin - Specify the minimum value to use for the Y range of the chart - Defaults to the minimum value supplied
 *   chartRangeMax - Specify the maximum value to use for the Y range of the chart - Defaults to the maximum value supplied
 *   chartRangeClip - Clip out of range values to the max/min specified by chartRangeMin and chartRangeMax
 *   chartRangeMinX - Specify the minimum value to use for the X range of the chart - Defaults to the minimum value supplied
 *   chartRangeMaxX - Specify the maximum value to use for the X range of the chart - Defaults to the maximum value supplied
 *   composite - If true then don't erase any existing chart attached to the tag, but draw
 *           another chart over the top - Note that width and height are ignored if an
 *           existing chart is detected.
 *   tagValuesAttribute - Name of tag attribute to check for data values - Defaults to 'values'
 *   enableTagOptions - Whether to check tags for sparkline options
 *   tagOptionPrefix - Prefix used for options supplied as tag attributes - Defaults to 'spark'
 *   disableHiddenCheck - If set to true, then the plugin will assume that charts will never be drawn into a
 *           hidden dom element, avoding a browser reflow
 *   disableInteraction - If set to true then all mouseover/click interaction behaviour will be disabled,
 *       making the plugin perform much like it did in 1.x
 *   disableTooltips - If set to true then tooltips will be disabled - Defaults to false (tooltips enabled)
 *   disableHighlight - If set to true then highlighting of selected chart elements on mouseover will be disabled
 *       defaults to false (highlights enabled)
 *   highlightLighten - Factor to lighten/darken highlighted chart values by - Defaults to 1.4 for a 40% increase
 *   tooltipContainer - Specify which DOM element the tooltip should be rendered into - defaults to document.body
 *   tooltipClassname - Optional CSS classname to apply to tooltips - If not specified then a default style will be applied
 *   tooltipOffsetX - How many pixels away from the mouse pointer to render the tooltip on the X axis
 *   tooltipOffsetY - How many pixels away from the mouse pointer to render the tooltip on the r axis
 *   tooltipFormatter  - Optional callback that allows you to override the HTML displayed in the tooltip
 *       callback is given arguments of (sparkline, options, fields)
 *   tooltipChartTitle - If specified then the tooltip uses the string specified by this setting as a title
 *   tooltipFormat - A format string or SPFormat object  (or an array thereof for multiple entries)
 *       to control the format of the tooltip
 *   tooltipPrefix - A string to prepend to each field displayed in a tooltip
 *   tooltipSuffix - A string to append to each field displayed in a tooltip
 *   tooltipSkipNull - If true then null values will not have a tooltip displayed (defaults to true)
 *   tooltipValueLookups - An object or range map to map field values to tooltip strings
 *       (eg. to map -1 to "Lost", 0 to "Draw", and 1 to "Win")
 *   numberFormatter - Optional callback for formatting numbers in tooltips
 *   numberDigitGroupSep - Character to use for group separator in numbers "1,234" - Defaults to ","
 *   numberDecimalMark - Character to use for the decimal point when formatting numbers - Defaults to "."
 *   numberDigitGroupCount - Number of digits between group separator - Defaults to 3
 *
 * There are 7 types of sparkline, selected by supplying a "type" option of 'line' (default),
 * 'bar', 'tristate', 'bullet', 'discrete', 'pie' or 'box'
 *    line - Line chart.  Options:
 *       spotColor - Set to '' to not end each line in a circular spot
 *       minSpotColor - If set, color of spot at minimum value
 *       maxSpotColor - If set, color of spot at maximum value
 *       spotRadius - Radius in pixels
 *       lineWidth - Width of line in pixels
 *       normalRangeMin
 *       normalRangeMax - If set draws a filled horizontal bar between these two values marking the "normal"
 *                      or expected range of values
 *       normalRangeColor - Color to use for the above bar
 *       drawNormalOnTop - Draw the normal range above the chart fill color if true
 *       defaultPixelsPerValue - Defaults to 3 pixels of width for each value in the chart
 *       highlightSpotColor - The color to use for drawing a highlight spot on mouseover - Set to null to disable
 *       highlightLineColor - The color to use for drawing a highlight line on mouseover - Set to null to disable
 *       valueSpots - Specify which points to draw spots on, and in which color.  Accepts a range map
 *
 *   bar - Bar chart.  Options:
 *       barColor - Color of bars for postive values
 *       negBarColor - Color of bars for negative values
 *       zeroColor - Color of bars with zero values
 *       nullColor - Color of bars with null values - Defaults to omitting the bar entirely
 *       barWidth - Width of bars in pixels
 *       colorMap - Optional mappnig of values to colors to override the *BarColor values above
 *                  can be an Array of values to control the color of individual bars or a range map
 *                  to specify colors for individual ranges of values
 *       barSpacing - Gap between bars in pixels
 *       zeroAxis - Centers the y-axis around zero if true
 *
 *   tristate - Charts values of win (>0), lose (<0) or draw (=0)
 *       posBarColor - Color of win values
 *       negBarColor - Color of lose values
 *       zeroBarColor - Color of draw values
 *       barWidth - Width of bars in pixels
 *       barSpacing - Gap between bars in pixels
 *       colorMap - Optional mappnig of values to colors to override the *BarColor values above
 *                  can be an Array of values to control the color of individual bars or a range map
 *                  to specify colors for individual ranges of values
 *
 *   discrete - Options:
 *       lineHeight - Height of each line in pixels - Defaults to 30% of the graph height
 *       thesholdValue - Values less than this value will be drawn using thresholdColor instead of lineColor
 *       thresholdColor
 *
 *   bullet - Values for bullet graphs msut be in the order: target, performance, range1, range2, range3, ...
 *       options:
 *       targetColor - The color of the vertical target marker
 *       targetWidth - The width of the target marker in pixels
 *       performanceColor - The color of the performance measure horizontal bar
 *       rangeColors - Colors to use for each qualitative range background color
 *
 *   pie - Pie chart. Options:
 *       sliceColors - An array of colors to use for pie slices
 *       offset - Angle in degrees to offset the first slice - Try -90 or +90
 *       borderWidth - Width of border to draw around the pie chart, in pixels - Defaults to 0 (no border)
 *       borderColor - Color to use for the pie chart border - Defaults to #000
 *
 *   box - Box plot. Options:
 *       raw - Set to true to supply pre-computed plot points as values
 *             values should be: low_outlier, low_whisker, q1, median, q3, high_whisker, high_outlier
 *             When set to false you can supply any number of values and the box plot will
 *             be computed for you.  Default is false.
 *       showOutliers - Set to true (default) to display outliers as circles
 *       outlierIQR - Interquartile range used to determine outliers.  Default 1.5
 *       boxLineColor - Outline color of the box
 *       boxFillColor - Fill color for the box
 *       whiskerColor - Line color used for whiskers
 *       outlierLineColor - Outline color of outlier circles
 *       outlierFillColor - Fill color of the outlier circles
 *       spotRadius - Radius of outlier circles
 *       medianColor - Line color of the median line
 *       target - Draw a target cross hair at the supplied value (default undefined)
 *
 *
 *
 *   Examples:
 *   $('#sparkline1').sparkline(myvalues, { lineColor: '#f00', fillColor: false });
 *   $('.barsparks').sparkline('html', { type:'bar', height:'40px', barWidth:5 });
 *   $('#tristate').sparkline([1,1,-1,1,0,0,-1], { type:'tristate' }):
 *   $('#discrete').sparkline([1,3,4,5,5,3,4,5], { type:'discrete' });
 *   $('#bullet').sparkline([10,12,12,9,7], { type:'bullet' });
 *   $('#pie').sparkline([1,1,2], { type:'pie' });
 */

/*jslint regexp: true, browser: true, jquery: true, white: true, nomen: false, plusplus: false, maxerr: 500, indent: 4 */

(function(document, Math, undefined) { // performance/minified-size optimization
	(function(factory) {
		if(typeof define === 'function' && define.amd) {
			define(['jquery'], factory);
		} else if (jQuery && !jQuery.fn.sparkline) {
			factory(jQuery);
		}
	}
	(function($) {
		'use strict';

		var UNSET_OPTION = {},
			getDefaults, createClass, SPFormat, clipval, quartile, normalizeValue, normalizeValues,
			remove, isNumber, all, sum, addCSS, ensureArray, formatNumber, RangeMap,
			MouseHandler, Tooltip, barHighlightMixin,
			line, bar, tristate, discrete, bullet, pie, box, defaultStyles, initStyles,
			VShape, VCanvas_base, VCanvas_canvas, VCanvas_vml, pending, shapeCount = 0;

		/**
		 * Default configuration settings
		 */
		getDefaults = function () {
			return {
				// Settings common to most/all chart types
				common: {
					type: 'line',
					lineColor: '#00f',
					fillColor: '#cdf',
					defaultPixelsPerValue: 3,
					width: 'auto',
					height: 'auto',
					composite: false,
					tagValuesAttribute: 'values',
					tagOptionsPrefix: 'spark',
					enableTagOptions: false,
					enableHighlight: true,
					highlightLighten: 1.1,
					tooltipSkipNull: true,
					tooltipPrefix: '',
					tooltipSuffix: '',
					disableHiddenCheck: false,
					numberFormatter: false,
					numberDigitGroupCount: 3,
					numberDigitGroupSep: ',',
					numberDecimalMark: '.',
					disableTooltips: false,
					disableInteraction: false
				},
				// Defaults for line charts
				line: {
					spotColor: '#f80',
					highlightSpotColor: '#5f5',
					highlightLineColor: '#f22',
					spotRadius: 1.5,
					minSpotColor: '#f80',
					maxSpotColor: '#f80',
					lineWidth: 1,
					normalRangeMin: undefined,
					normalRangeMax: undefined,
					normalRangeColor: '#ccc',
					drawNormalOnTop: false,
					chartRangeMin: undefined,
					chartRangeMax: undefined,
					chartRangeMinX: undefined,
					chartRangeMaxX: undefined,
					tooltipFormat: new SPFormat('<span style="color: {{color}}">&#9679;</span> {{prefix}}{{y}}{{suffix}}')
				},
				// Defaults for bar charts
				bar: {
					barColor: '#3366cc',
					negBarColor: '#f44',
					stackedBarColor: ['#3366cc', '#dc3912', '#ff9900', '#109618', '#66aa00',
						'#dd4477', '#0099c6', '#990099'],
					zeroColor: undefined,
					nullColor: undefined,
					zeroAxis: true,
					barWidth: 4,
					barSpacing: 1,
					chartRangeMax: undefined,
					chartRangeMin: undefined,
					chartRangeClip: false,
					colorMap: undefined,
					tooltipFormat: new SPFormat('<span style="color: {{color}}">&#9679;</span> {{prefix}}{{value}}{{suffix}}')
				},
				// Defaults for tristate charts
				tristate: {
					barWidth: 4,
					barSpacing: 1,
					posBarColor: '#6f6',
					negBarColor: '#f44',
					zeroBarColor: '#999',
					colorMap: {},
					tooltipFormat: new SPFormat('<span style="color: {{color}}">&#9679;</span> {{value:map}}'),
					tooltipValueLookups: { map: { '-1': 'Loss', '0': 'Draw', '1': 'Win' } }
				},
				// Defaults for discrete charts
				discrete: {
					lineHeight: 'auto',
					thresholdColor: undefined,
					thresholdValue: 0,
					chartRangeMax: undefined,
					chartRangeMin: undefined,
					chartRangeClip: false,
					tooltipFormat: new SPFormat('{{prefix}}{{value}}{{suffix}}')
				},
				// Defaults for bullet charts
				bullet: {
					targetColor: '#f33',
					targetWidth: 3, // width of the target bar in pixels
					performanceColor: '#33f',
					rangeColors: ['#d3dafe', '#a8b6ff', '#7f94ff'],
					base: undefined, // set this to a number to change the base start number
					tooltipFormat: new SPFormat('{{fieldkey:fields}} - {{value}}'),
					tooltipValueLookups: { fields: {r: 'Range', p: 'Performance', t: 'Target'} }
				},
				// Defaults for pie charts
				pie: {
					offset: 0,
					sliceColors: ['#3366cc', '#dc3912', '#ff9900', '#109618', '#66aa00',
						'#dd4477', '#0099c6', '#990099'],
					borderWidth: 0,
					borderColor: '#000',
					tooltipFormat: new SPFormat('<span style="color: {{color}}">&#9679;</span> {{value}} ({{percent.1}}%)')
				},
				// Defaults for box plots
				box: {
					raw: false,
					boxLineColor: '#000',
					boxFillColor: '#cdf',
					whiskerColor: '#000',
					outlierLineColor: '#333',
					outlierFillColor: '#fff',
					medianColor: '#f00',
					showOutliers: true,
					outlierIQR: 1.5,
					spotRadius: 1.5,
					target: undefined,
					targetColor: '#4a2',
					chartRangeMax: undefined,
					chartRangeMin: undefined,
					tooltipFormat: new SPFormat('{{field:fields}}: {{value}}'),
					tooltipFormatFieldlistKey: 'field',
					tooltipValueLookups: { fields: { lq: 'Lower Quartile', med: 'Median',
						uq: 'Upper Quartile', lo: 'Left Outlier', ro: 'Right Outlier',
						lw: 'Left Whisker', rw: 'Right Whisker'} }
				}
			};
		};

		// You can have tooltips use a css class other than jqstooltip by specifying tooltipClassname
		// tooltip modified by westilian:jaman
		defaultStyles = '.jqstooltip { ' +
			'position: absolute;' +
			'left: 30px;' +
			'top: 0px;' +
			'display: block;' +
			'visibility: hidden;' +
			'background: rgb(0, 0, 0) transparent;' +
			'background-color: rgba(0,0,0,0.6);' +
			'filter:progid:DXImageTransform.Microsoft.gradient(startColorstr=#99000000, endColorstr=#99000000);' +
			'-ms-filter: "progid:DXImageTransform.Microsoft.gradient(startColorstr=#99000000, endColorstr=#99000000)";' +
			'color: white;' +
			'font: 10px arial, san serif;' +
			'text-align: left;' +
			'white-space: nowrap;' +

			'border: 0px solid white;' +
			'border-radius: 3px;' +
			'-webkit-border-radius: 3px;' +
			'z-index: 10000;' +
			'}' +
			'.jqsfield { ' +
			'color: white;' +
			'padding: 5px 5px 5px 5px;' +
			'font: 10px arial, san serif;' +
			'text-align: left;' +
			'}';

		/**
		 * Utilities
		 */

		createClass = function (/* [baseclass, [mixin, ...]], definition */) {
			var Class, args;
			Class = function () {
				this.init.apply(this, arguments);
			};
			if (arguments.length > 1) {
				if (arguments[0]) {
					Class.prototype = $.extend(new arguments[0](), arguments[arguments.length - 1]);
					Class._super = arguments[0].prototype;
				} else {
					Class.prototype = arguments[arguments.length - 1];
				}
				if (arguments.length > 2) {
					args = Array.prototype.slice.call(arguments, 1, -1);
					args.unshift(Class.prototype);
					$.extend.apply($, args);
				}
			} else {
				Class.prototype = arguments[0];
			}
			Class.prototype.cls = Class;
			return Class;
		};

		/**
		 * Wraps a format string for tooltips
		 * {{x}}
		 * {{x.2}
     * {{x:months}}
     */
		$.SPFormatClass = SPFormat = createClass({
			fre: /\{\{([\w.]+?)(:(.+?))?\}\}/g,
			precre: /(\w+)\.(\d+)/,

			init: function (format, fclass) {
				this.format = format;
				this.fclass = fclass;
			},

			render: function (fieldset, lookups, options) {
				var self = this,
					fields = fieldset,
					match, token, lookupkey, fieldvalue, prec;
				return this.format.replace(this.fre, function () {
					var lookup;
					token = arguments[1];
					lookupkey = arguments[3];
					match = self.precre.exec(token);
					if (match) {
						prec = match[2];
						token = match[1];
					} else {
						prec = false;
					}
					fieldvalue = fields[token];
					if (fieldvalue === undefined) {
						return '';
					}
					if (lookupkey && lookups && lookups[lookupkey]) {
						lookup = lookups[lookupkey];
						if (lookup.get) { // RangeMap
							return lookups[lookupkey].get(fieldvalue) || fieldvalue;
						} else {
							return lookups[lookupkey][fieldvalue] || fieldvalue;
						}
					}
					if (isNumber(fieldvalue)) {
						if (options.get('numberFormatter')) {
							fieldvalue = options.get('numberFormatter')(fieldvalue);
						} else {
							fieldvalue = formatNumber(fieldvalue, prec,
								options.get('numberDigitGroupCount'),
								options.get('numberDigitGroupSep'),
								options.get('numberDecimalMark'));
						}
					}
					return fieldvalue;
				});
			}
		});

		// convience method to avoid needing the new operator
		$.spformat = function(format, fclass) {
			return new SPFormat(format, fclass);
		};

		clipval = function (val, min, max) {
			if (val < min) {
				return min;
			}
			if (val > max) {
				return max;
			}
			return val;
		};

		quartile = function (values, q) {
			var vl;
			if (q === 2) {
				vl = Math.floor(values.length / 2);
				return values.length % 2 ? values[vl] : (values[vl-1] + values[vl]) / 2;
			} else {
				if (values.length % 2 ) { // odd
					vl = (values.length * q + q) / 4;
					return vl % 1 ? (values[Math.floor(vl)] + values[Math.floor(vl) - 1]) / 2 : values[vl-1];
				} else { //even
					vl = (values.length * q + 2) / 4;
					return vl % 1 ? (values[Math.floor(vl)] + values[Math.floor(vl) - 1]) / 2 :  values[vl-1];

				}
			}
		};

		normalizeValue = function (val) {
			var nf;
			switch (val) {
				case 'undefined':
					val = undefined;
					break;
				case 'null':
					val = null;
					break;
				case 'true':
					val = true;
					break;
				case 'false':
					val = false;
					break;
				default:
					nf = parseFloat(val);
					if (val == nf) {
						val = nf;
					}
			}
			return val;
		};

		normalizeValues = function (vals) {
			var i, result = [];
			for (i = vals.length; i--;) {
				result[i] = normalizeValue(vals[i]);
			}
			return result;
		};

		remove = function (vals, filter) {
			var i, vl, result = [];
			for (i = 0, vl = vals.length; i < vl; i++) {
				if (vals[i] !== filter) {
					result.push(vals[i]);
				}
			}
			return result;
		};

		isNumber = function (num) {
			return !isNaN(parseFloat(num)) && isFinite(num);
		};

		formatNumber = function (num, prec, groupsize, groupsep, decsep) {
			var p, i;
			num = (prec === false ? parseFloat(num).toString() : num.toFixed(prec)).split('');
			p = (p = $.inArray('.', num)) < 0 ? num.length : p;
			if (p < num.length) {
				num[p] = decsep;
			}
			for (i = p - groupsize; i > 0; i -= groupsize) {
				num.splice(i, 0, groupsep);
			}
			return num.join('');
		};

		// determine if all values of an array match a value
		// returns true if the array is empty
		all = function (val, arr, ignoreNull) {
			var i;
			for (i = arr.length; i--; ) {
				if (ignoreNull && arr[i] === null) continue;
				if (arr[i] !== val) {
					return false;
				}
			}
			return true;
		};

		// sums the numeric values in an array, ignoring other values
		sum = function (vals) {
			var total = 0, i;
			for (i = vals.length; i--;) {
				total += typeof vals[i] === 'number' ? vals[i] : 0;
			}
			return total;
		};

		ensureArray = function (val) {
			return $.isArray(val) ? val : [val];
		};

		// http://paulirish.com/2008/bookmarklet-inject-new-css-rules/
		addCSS = function(css) {
			var tag;
			//if ('\v' == 'v') /* ie only */ {
			if (document.createStyleSheet) {
				document.createStyleSheet().cssText = css;
			} else {
				tag = document.createElement('style');
				tag.type = 'text/css';
				document.getElementsByTagName('head')[0].appendChild(tag);
				tag[(typeof document.body.style.WebkitAppearance == 'string') /* webkit only */ ? 'innerText' : 'innerHTML'] = css;
			}
		};

		// Provide a cross-browser interface to a few simple drawing primitives
		$.fn.simpledraw = function (width, height, useExisting, interact) {
			var target, mhandler;
			if (useExisting && (target = this.data('_jqs_vcanvas'))) {
				return target;
			}

			if ($.fn.sparkline.canvas === false) {
				// We've already determined that neither Canvas nor VML are available
				return false;

			} else if ($.fn.sparkline.canvas === undefined) {
				// No function defined yet -- need to see if we support Canvas or VML
				var el = document.createElement('canvas');
				if (!!(el.getContext && el.getContext('2d'))) {
					// Canvas is available
					$.fn.sparkline.canvas = function(width, height, target, interact) {
						return new VCanvas_canvas(width, height, target, interact);
					};
				} else if (document.namespaces && !document.namespaces.v) {
					// VML is available
					document.namespaces.add('v', 'urn:schemas-microsoft-com:vml', '#default#VML');
					$.fn.sparkline.canvas = function(width, height, target, interact) {
						return new VCanvas_vml(width, height, target);
					};
				} else {
					// Neither Canvas nor VML are available
					$.fn.sparkline.canvas = false;
					return false;
				}
			}

			if (width === undefined) {
				width = $(this).innerWidth();
			}
			if (height === undefined) {
				height = $(this).innerHeight();
			}

			target = $.fn.sparkline.canvas(width, height, this, interact);

			mhandler = $(this).data('_jqs_mhandler');
			if (mhandler) {
				mhandler.registerCanvas(target);
			}
			return target;
		};

		$.fn.cleardraw = function () {
			var target = this.data('_jqs_vcanvas');
			if (target) {
				target.reset();
			}
		};

		$.RangeMapClass = RangeMap = createClass({
			init: function (map) {
				var key, range, rangelist = [];
				for (key in map) {
					if (map.hasOwnProperty(key) && typeof key === 'string' && key.indexOf(':') > -1) {
						range = key.split(':');
						range[0] = range[0].length === 0 ? -Infinity : parseFloat(range[0]);
						range[1] = range[1].length === 0 ? Infinity : parseFloat(range[1]);
						range[2] = map[key];
						rangelist.push(range);
					}
				}
				this.map = map;
				this.rangelist = rangelist || false;
			},

			get: function (value) {
				var rangelist = this.rangelist,
					i, range, result;
				if ((result = this.map[value]) !== undefined) {
					return result;
				}
				if (rangelist) {
					for (i = rangelist.length; i--;) {
						range = rangelist[i];
						if (range[0] <= value && range[1] >= value) {
							return range[2];
						}
					}
				}
				return undefined;
			}
		});

		// Convenience function
		$.range_map = function(map) {
			return new RangeMap(map);
		};

		MouseHandler = createClass({
			init: function (el, options) {
				var $el = $(el);
				this.$el = $el;
				this.options = options;
				this.currentPageX = 0;
				this.currentPageY = 0;
				this.el = el;
				this.splist = [];
				this.tooltip = null;
				this.over = false;
				this.displayTooltips = !options.get('disableTooltips');
				this.highlightEnabled = !options.get('disableHighlight');
			},

			registerSparkline: function (sp) {
				this.splist.push(sp);
				if (this.over) {
					this.updateDisplay();
				}
			},

			registerCanvas: function (canvas) {
				var $canvas = $(canvas.canvas);
				this.canvas = canvas;
				this.$canvas = $canvas;
				$canvas.mouseenter($.proxy(this.mouseenter, this));
				$canvas.mouseleave($.proxy(this.mouseleave, this));
				$canvas.click($.proxy(this.mouseclick, this));
			},

			reset: function (removeTooltip) {
				this.splist = [];
				if (this.tooltip && removeTooltip) {
					this.tooltip.remove();
					this.tooltip = undefined;
				}
			},

			mouseclick: function (e) {
				var clickEvent = $.Event('sparklineClick');
				clickEvent.originalEvent = e;
				clickEvent.sparklines = this.splist;
				this.$el.trigger(clickEvent);
			},

			mouseenter: function (e) {
				$(document.body).unbind('mousemove.jqs');
				$(document.body).bind('mousemove.jqs', $.proxy(this.mousemove, this));
				this.over = true;
				this.currentPageX = e.pageX;
				this.currentPageY = e.pageY;
				this.currentEl = e.target;
				if (!this.tooltip && this.displayTooltips) {
					this.tooltip = new Tooltip(this.options);
					this.tooltip.updatePosition(e.pageX, e.pageY);
				}
				this.updateDisplay();
			},

			mouseleave: function () {
				$(document.body).unbind('mousemove.jqs');
				var splist = this.splist,
					spcount = splist.length,
					needsRefresh = false,
					sp, i;
				this.over = false;
				this.currentEl = null;

				if (this.tooltip) {
					this.tooltip.remove();
					this.tooltip = null;
				}

				for (i = 0; i < spcount; i++) {
					sp = splist[i];
					if (sp.clearRegionHighlight()) {
						needsRefresh = true;
					}
				}

				if (needsRefresh) {
					this.canvas.render();
				}
			},

			mousemove: function (e) {
				this.currentPageX = e.pageX;
				this.currentPageY = e.pageY;
				this.currentEl = e.target;
				if (this.tooltip) {
					this.tooltip.updatePosition(e.pageX, e.pageY);
				}
				this.updateDisplay();
			},

			updateDisplay: function () {
				var splist = this.splist,
					spcount = splist.length,
					needsRefresh = false,
					offset = this.$canvas.offset(),
					localX = this.currentPageX - offset.left,
					localY = this.currentPageY - offset.top,
					tooltiphtml, sp, i, result, changeEvent;
				if (!this.over) {
					return;
				}
				for (i = 0; i < spcount; i++) {
					sp = splist[i];
					result = sp.setRegionHighlight(this.currentEl, localX, localY);
					if (result) {
						needsRefresh = true;
					}
				}
				if (needsRefresh) {
					changeEvent = $.Event('sparklineRegionChange');
					changeEvent.sparklines = this.splist;
					this.$el.trigger(changeEvent);
					if (this.tooltip) {
						tooltiphtml = '';
						for (i = 0; i < spcount; i++) {
							sp = splist[i];
							tooltiphtml += sp.getCurrentRegionTooltip();
						}
						this.tooltip.setContent(tooltiphtml);
					}
					if (!this.disableHighlight) {
						this.canvas.render();
					}
				}
				if (result === null) {
					this.mouseleave();
				}
			}
		});


		Tooltip = createClass({
			sizeStyle: 'position: static !important;' +
			'display: block !important;' +
			'visibility: hidden !important;' +
			'float: left !important;',

			init: function (options) {
				var tooltipClassname = options.get('tooltipClassname', 'jqstooltip'),
					sizetipStyle = this.sizeStyle,
					offset;
				this.container = options.get('tooltipContainer') || document.body;
				this.tooltipOffsetX = options.get('tooltipOffsetX', 10);
				this.tooltipOffsetY = options.get('tooltipOffsetY', 12);
				// remove any previous lingering tooltip
				$('#jqssizetip').remove();
				$('#jqstooltip').remove();
				this.sizetip = $('<div/>', {
					id: 'jqssizetip',
					style: sizetipStyle,
					'class': tooltipClassname
				});
				this.tooltip = $('<div/>', {
					id: 'jqstooltip',
					'class': tooltipClassname
				}).appendTo(this.container);
				// account for the container's location
				offset = this.tooltip.offset();
				this.offsetLeft = offset.left;
				this.offsetTop = offset.top;
				this.hidden = true;
				$(window).unbind('resize.jqs scroll.jqs');
				$(window).bind('resize.jqs scroll.jqs', $.proxy(this.updateWindowDims, this));
				this.updateWindowDims();
			},

			updateWindowDims: function () {
				this.scrollTop = $(window).scrollTop();
				this.scrollLeft = $(window).scrollLeft();
				this.scrollRight = this.scrollLeft + $(window).width();
				this.updatePosition();
			},

			getSize: function (content) {
				this.sizetip.html(content).appendTo(this.container);
				this.width = this.sizetip.width() + 1;
				this.height = this.sizetip.height();
				this.sizetip.remove();
			},

			setContent: function (content) {
				if (!content) {
					this.tooltip.css('visibility', 'hidden');
					this.hidden = true;
					return;
				}
				this.getSize(content);
				this.tooltip.html(content)
					.css({
						'width': this.width,
						'height': this.height,
						'visibility': 'visible'
					});
				if (this.hidden) {
					this.hidden = false;
					this.updatePosition();
				}
			},

			updatePosition: function (x, y) {
				if (x === undefined) {
					if (this.mousex === undefined) {
						return;
					}
					x = this.mousex - this.offsetLeft;
					y = this.mousey - this.offsetTop;

				} else {
					this.mousex = x = x - this.offsetLeft;
					this.mousey = y = y - this.offsetTop;
				}
				if (!this.height || !this.width || this.hidden) {
					return;
				}

				y -= this.height + this.tooltipOffsetY;
				x += this.tooltipOffsetX;

				if (y < this.scrollTop) {
					y = this.scrollTop;
				}
				if (x < this.scrollLeft) {
					x = this.scrollLeft;
				} else if (x + this.width > this.scrollRight) {
					x = this.scrollRight - this.width;
				}

				this.tooltip.css({
					'left': x,
					'top': y
				});
			},

			remove: function () {
				this.tooltip.remove();
				this.sizetip.remove();
				this.sizetip = this.tooltip = undefined;
				$(window).unbind('resize.jqs scroll.jqs');
			}
		});

		initStyles = function() {
			addCSS(defaultStyles);
		};

		$(initStyles);

		pending = [];
		$.fn.sparkline = function (userValues, userOptions) {
			return this.each(function () {
				var options = new $.fn.sparkline.options(this, userOptions),
					$this = $(this),
					render, i;
				render = function () {
					var values, width, height, tmp, mhandler, sp, vals;
					if (userValues === 'html' || userValues === undefined) {
						vals = this.getAttribute(options.get('tagValuesAttribute'));
						if (vals === undefined || vals === null) {
							vals = $this.html();
						}
						values = vals.replace(/(^\s*<!--)|(-->\s*$)|\s+/g, '').split(',');
					} else {
						values = userValues;
					}

					width = options.get('width') === 'auto' ? values.length * options.get('defaultPixelsPerValue') : options.get('width');
					if (options.get('height') === 'auto') {
						if (!options.get('composite') || !$.data(this, '_jqs_vcanvas')) {
							// must be a better way to get the line height
							tmp = document.createElement('span');
							tmp.innerHTML = 'a';
							$this.html(tmp);
							height = $(tmp).innerHeight() || $(tmp).height();
							$(tmp).remove();
							tmp = null;
						}
					} else {
						height = options.get('height');
					}

					if (!options.get('disableInteraction')) {
						mhandler = $.data(this, '_jqs_mhandler');
						if (!mhandler) {
							mhandler = new MouseHandler(this, options);
							$.data(this, '_jqs_mhandler', mhandler);
						} else if (!options.get('composite')) {
							mhandler.reset();
						}
					} else {
						mhandler = false;
					}

					if (options.get('composite') && !$.data(this, '_jqs_vcanvas')) {
						if (!$.data(this, '_jqs_errnotify')) {
							alert('Attempted to attach a composite sparkline to an element with no existing sparkline');
							$.data(this, '_jqs_errnotify', true);
						}
						return;
					}

					sp = new $.fn.sparkline[options.get('type')](this, values, options, width, height);

					sp.render();

					if (mhandler) {
						mhandler.registerSparkline(sp);
					}
				};
				if (($(this).html() && !options.get('disableHiddenCheck') && $(this).is(':hidden')) || !$(this).parents('body').length) {
					if (!options.get('composite') && $.data(this, '_jqs_pending')) {
						// remove any existing references to the element
						for (i = pending.length; i; i--) {
							if (pending[i - 1][0] == this) {
								pending.splice(i - 1, 1);
							}
						}
					}
					pending.push([this, render]);
					$.data(this, '_jqs_pending', true);
				} else {
					render.call(this);
				}
			});
		};

		$.fn.sparkline.defaults = getDefaults();


		$.sparkline_display_visible = function () {
			var el, i, pl;
			var done = [];
			for (i = 0, pl = pending.length; i < pl; i++) {
				el = pending[i][0];
				if ($(el).is(':visible') && !$(el).parents().is(':hidden')) {
					pending[i][1].call(el);
					$.data(pending[i][0], '_jqs_pending', false);
					done.push(i);
				} else if (!$(el).closest('html').length && !$.data(el, '_jqs_pending')) {
					// element has been inserted and removed from the DOM
					// If it was not yet inserted into the dom then the .data request
					// will return true.
					// removing from the dom causes the data to be removed.
					$.data(pending[i][0], '_jqs_pending', false);
					done.push(i);
				}
			}
			for (i = done.length; i; i--) {
				pending.splice(done[i - 1], 1);
			}
		};


		/**
		 * User option handler
		 */
		$.fn.sparkline.options = createClass({
			init: function (tag, userOptions) {
				var extendedOptions, defaults, base, tagOptionType;
				this.userOptions = userOptions = userOptions || {};
				this.tag = tag;
				this.tagValCache = {};
				defaults = $.fn.sparkline.defaults;
				base = defaults.common;
				this.tagOptionsPrefix = userOptions.enableTagOptions && (userOptions.tagOptionsPrefix || base.tagOptionsPrefix);

				tagOptionType = this.getTagSetting('type');
				if (tagOptionType === UNSET_OPTION) {
					extendedOptions = defaults[userOptions.type || base.type];
				} else {
					extendedOptions = defaults[tagOptionType];
				}
				this.mergedOptions = $.extend({}, base, extendedOptions, userOptions);
			},


			getTagSetting: function (key) {
				var prefix = this.tagOptionsPrefix,
					val, i, pairs, keyval;
				if (prefix === false || prefix === undefined) {
					return UNSET_OPTION;
				}
				if (this.tagValCache.hasOwnProperty(key)) {
					val = this.tagValCache.key;
				} else {
					val = this.tag.getAttribute(prefix + key);
					if (val === undefined || val === null) {
						val = UNSET_OPTION;
					} else if (val.substr(0, 1) === '[') {
						val = val.substr(1, val.length - 2).split(',');
						for (i = val.length; i--;) {
							val[i] = normalizeValue(val[i].replace(/(^\s*)|(\s*$)/g, ''));
						}
					} else if (val.substr(0, 1) === '{') {
						pairs = val.substr(1, val.length - 2).split(',');
						val = {};
						for (i = pairs.length; i--;) {
							keyval = pairs[i].split(':', 2);
							val[keyval[0].replace(/(^\s*)|(\s*$)/g, '')] = normalizeValue(keyval[1].replace(/(^\s*)|(\s*$)/g, ''));
						}
					} else {
						val = normalizeValue(val);
					}
					this.tagValCache.key = val;
				}
				return val;
			},

			get: function (key, defaultval) {
				var tagOption = this.getTagSetting(key),
					result;
				if (tagOption !== UNSET_OPTION) {
					return tagOption;
				}
				return (result = this.mergedOptions[key]) === undefined ? defaultval : result;
			}
		});


		$.fn.sparkline._base = createClass({
			disabled: false,

			init: function (el, values, options, width, height) {
				this.el = el;
				this.$el = $(el);
				this.values = values;
				this.options = options;
				this.width = width;
				this.height = height;
				this.currentRegion = undefined;
			},

			/**
			 * Setup the canvas
			 */
			initTarget: function () {
				var interactive = !this.options.get('disableInteraction');
				if (!(this.target = this.$el.simpledraw(this.width, this.height, this.options.get('composite'), interactive))) {
					this.disabled = true;
				} else {
					this.canvasWidth = this.target.pixelWidth;
					this.canvasHeight = this.target.pixelHeight;
				}
			},

			/**
			 * Actually render the chart to the canvas
			 */
			render: function () {
				if (this.disabled) {
					this.el.innerHTML = '';
					return false;
				}
				return true;
			},

			/**
			 * Return a region id for a given x/y co-ordinate
			 */
			getRegion: function (x, y) {
			},

			/**
			 * Highlight an item based on the moused-over x,y co-ordinate
			 */
			setRegionHighlight: function (el, x, y) {
				var currentRegion = this.currentRegion,
					highlightEnabled = !this.options.get('disableHighlight'),
					newRegion;
				if (x > this.canvasWidth || y > this.canvasHeight || x < 0 || y < 0) {
					return null;
				}
				newRegion = this.getRegion(el, x, y);
				if (currentRegion !== newRegion) {
					if (currentRegion !== undefined && highlightEnabled) {
						this.removeHighlight();
					}
					this.currentRegion = newRegion;
					if (newRegion !== undefined && highlightEnabled) {
						this.renderHighlight();
					}
					return true;
				}
				return false;
			},

			/**
			 * Reset any currently highlighted item
			 */
			clearRegionHighlight: function () {
				if (this.currentRegion !== undefined) {
					this.removeHighlight();
					this.currentRegion = undefined;
					return true;
				}
				return false;
			},

			renderHighlight: function () {
				this.changeHighlight(true);
			},

			removeHighlight: function () {
				this.changeHighlight(false);
			},

			changeHighlight: function (highlight)  {},

			/**
			 * Fetch the HTML to display as a tooltip
			 */
			getCurrentRegionTooltip: function () {
				var options = this.options,
					header = '',
					entries = [],
					fields, formats, formatlen, fclass, text, i,
					showFields, showFieldsKey, newFields, fv,
					formatter, format, fieldlen, j;
				if (this.currentRegion === undefined) {
					return '';
				}
				fields = this.getCurrentRegionFields();
				formatter = options.get('tooltipFormatter');
				if (formatter) {
					return formatter(this, options, fields);
				}
				if (options.get('tooltipChartTitle')) {
					header += '<div class="jqs jqstitle">' + options.get('tooltipChartTitle') + '</div>\n';
				}
				formats = this.options.get('tooltipFormat');
				if (!formats) {
					return '';
				}
				if (!$.isArray(formats)) {
					formats = [formats];
				}
				if (!$.isArray(fields)) {
					fields = [fields];
				}
				showFields = this.options.get('tooltipFormatFieldlist');
				showFieldsKey = this.options.get('tooltipFormatFieldlistKey');
				if (showFields && showFieldsKey) {
					// user-selected ordering of fields
					newFields = [];
					for (i = fields.length; i--;) {
						fv = fields[i][showFieldsKey];
						if ((j = $.inArray(fv, showFields)) != -1) {
							newFields[j] = fields[i];
						}
					}
					fields = newFields;
				}
				formatlen = formats.length;
				fieldlen = fields.length;
				for (i = 0; i < formatlen; i++) {
					format = formats[i];
					if (typeof format === 'string') {
						format = new SPFormat(format);
					}
					fclass = format.fclass || 'jqsfield';
					for (j = 0; j < fieldlen; j++) {
						if (!fields[j].isNull || !options.get('tooltipSkipNull')) {
							$.extend(fields[j], {
								prefix: options.get('tooltipPrefix'),
								suffix: options.get('tooltipSuffix')
							});
							text = format.render(fields[j], options.get('tooltipValueLookups'), options);
							entries.push('<div class="' + fclass + '">' + text + '</div>');
						}
					}
				}
				if (entries.length) {
					return header + entries.join('\n');
				}
				return '';
			},

			getCurrentRegionFields: function () {},

			calcHighlightColor: function (color, options) {
				var highlightColor = options.get('highlightColor'),
					lighten = options.get('highlightLighten'),
					parse, mult, rgbnew, i;
				if (highlightColor) {
					return highlightColor;
				}
				if (lighten) {
					// extract RGB values
					parse = /^#([0-9a-f])([0-9a-f])([0-9a-f])$/i.exec(color) || /^#([0-9a-f]{2})([0-9a-f]{2})([0-9a-f]{2})$/i.exec(color);
					if (parse) {
						rgbnew = [];
						mult = color.length === 4 ? 16 : 1;
						for (i = 0; i < 3; i++) {
							rgbnew[i] = clipval(Math.round(parseInt(parse[i + 1], 16) * mult * lighten), 0, 255);
						}
						return 'rgb(' + rgbnew.join(',') + ')';
					}

				}
				return color;
			}

		});

		barHighlightMixin = {
			changeHighlight: function (highlight) {
				var currentRegion = this.currentRegion,
					target = this.target,
					shapeids = this.regionShapes[currentRegion],
					newShapes;
				// will be null if the region value was null
				if (shapeids) {
					newShapes = this.renderRegion(currentRegion, highlight);
					if ($.isArray(newShapes) || $.isArray(shapeids)) {
						target.replaceWithShapes(shapeids, newShapes);
						this.regionShapes[currentRegion] = $.map(newShapes, function (newShape) {
							return newShape.id;
						});
					} else {
						target.replaceWithShape(shapeids, newShapes);
						this.regionShapes[currentRegion] = newShapes.id;
					}
				}
			},

			render: function () {
				var values = this.values,
					target = this.target,
					regionShapes = this.regionShapes,
					shapes, ids, i, j;

				if (!this.cls._super.render.call(this)) {
					return;
				}
				for (i = values.length; i--;) {
					shapes = this.renderRegion(i);
					if (shapes) {
						if ($.isArray(shapes)) {
							ids = [];
							for (j = shapes.length; j--;) {
								shapes[j].append();
								ids.push(shapes[j].id);
							}
							regionShapes[i] = ids;
						} else {
							shapes.append();
							regionShapes[i] = shapes.id; // store just the shapeid
						}
					} else {
						// null value
						regionShapes[i] = null;
					}
				}
				target.render();
			}
		};

		/**
		 * Line charts
		 */
		$.fn.sparkline.line = line = createClass($.fn.sparkline._base, {
			type: 'line',

			init: function (el, values, options, width, height) {
				line._super.init.call(this, el, values, options, width, height);
				this.vertices = [];
				this.regionMap = [];
				this.xvalues = [];
				this.yvalues = [];
				this.yminmax = [];
				this.hightlightSpotId = null;
				this.lastShapeId = null;
				this.initTarget();
			},

			getRegion: function (el, x, y) {
				var i,
					regionMap = this.regionMap; // maps regions to value positions
				for (i = regionMap.length; i--;) {
					if (regionMap[i] !== null && x >= regionMap[i][0] && x <= regionMap[i][1]) {
						return regionMap[i][2];
					}
				}
				return undefined;
			},

			getCurrentRegionFields: function () {
				var currentRegion = this.currentRegion;
				return {
					isNull: this.yvalues[currentRegion] === null,
					x: this.xvalues[currentRegion],
					y: this.yvalues[currentRegion],
					color: this.options.get('lineColor'),
					fillColor: this.options.get('fillColor'),
					offset: currentRegion
				};
			},

			renderHighlight: function () {
				var currentRegion = this.currentRegion,
					target = this.target,
					vertex = this.vertices[currentRegion],
					options = this.options,
					spotRadius = options.get('spotRadius'),
					highlightSpotColor = options.get('highlightSpotColor'),
					highlightLineColor = options.get('highlightLineColor'),
					highlightSpot, highlightLine;

				if (!vertex) {
					return;
				}
				if (spotRadius && highlightSpotColor) {
					highlightSpot = target.drawCircle(vertex[0], vertex[1],
						spotRadius, undefined, highlightSpotColor);
					this.highlightSpotId = highlightSpot.id;
					target.insertAfterShape(this.lastShapeId, highlightSpot);
				}
				if (highlightLineColor) {
					highlightLine = target.drawLine(vertex[0], this.canvasTop, vertex[0],
						this.canvasTop + this.canvasHeight, highlightLineColor);
					this.highlightLineId = highlightLine.id;
					target.insertAfterShape(this.lastShapeId, highlightLine);
				}
			},

			removeHighlight: function () {
				var target = this.target;
				if (this.highlightSpotId) {
					target.removeShapeId(this.highlightSpotId);
					this.highlightSpotId = null;
				}
				if (this.highlightLineId) {
					target.removeShapeId(this.highlightLineId);
					this.highlightLineId = null;
				}
			},

			scanValues: function () {
				var values = this.values,
					valcount = values.length,
					xvalues = this.xvalues,
					yvalues = this.yvalues,
					yminmax = this.yminmax,
					i, val, isStr, isArray, sp;
				for (i = 0; i < valcount; i++) {
					val = values[i];
					isStr = typeof(values[i]) === 'string';
					isArray = typeof(values[i]) === 'object' && values[i] instanceof Array;
					sp = isStr && values[i].split(':');
					if (isStr && sp.length === 2) { // x:y
						xvalues.push(Number(sp[0]));
						yvalues.push(Number(sp[1]));
						yminmax.push(Number(sp[1]));
					} else if (isArray) {
						xvalues.push(val[0]);
						yvalues.push(val[1]);
						yminmax.push(val[1]);
					} else {
						xvalues.push(i);
						if (values[i] === null || values[i] === 'null') {
							yvalues.push(null);
						} else {
							yvalues.push(Number(val));
							yminmax.push(Number(val));
						}
					}
				}
				if (this.options.get('xvalues')) {
					xvalues = this.options.get('xvalues');
				}

				this.maxy = this.maxyorg = Math.max.apply(Math, yminmax);
				this.miny = this.minyorg = Math.min.apply(Math, yminmax);

				this.maxx = Math.max.apply(Math, xvalues);
				this.minx = Math.min.apply(Math, xvalues);

				this.xvalues = xvalues;
				this.yvalues = yvalues;
				this.yminmax = yminmax;

			},

			processRangeOptions: function () {
				var options = this.options,
					normalRangeMin = options.get('normalRangeMin'),
					normalRangeMax = options.get('normalRangeMax');

				if (normalRangeMin !== undefined) {
					if (normalRangeMin < this.miny) {
						this.miny = normalRangeMin;
					}
					if (normalRangeMax > this.maxy) {
						this.maxy = normalRangeMax;
					}
				}
				if (options.get('chartRangeMin') !== undefined && (options.get('chartRangeClip') || options.get('chartRangeMin') < this.miny)) {
					this.miny = options.get('chartRangeMin');
				}
				if (options.get('chartRangeMax') !== undefined && (options.get('chartRangeClip') || options.get('chartRangeMax') > this.maxy)) {
					this.maxy = options.get('chartRangeMax');
				}
				if (options.get('chartRangeMinX') !== undefined && (options.get('chartRangeClipX') || options.get('chartRangeMinX') < this.minx)) {
					this.minx = options.get('chartRangeMinX');
				}
				if (options.get('chartRangeMaxX') !== undefined && (options.get('chartRangeClipX') || options.get('chartRangeMaxX') > this.maxx)) {
					this.maxx = options.get('chartRangeMaxX');
				}

			},

			drawNormalRange: function (canvasLeft, canvasTop, canvasHeight, canvasWidth, rangey) {
				var normalRangeMin = this.options.get('normalRangeMin'),
					normalRangeMax = this.options.get('normalRangeMax'),
					ytop = canvasTop + Math.round(canvasHeight - (canvasHeight * ((normalRangeMax - this.miny) / rangey))),
					height = Math.round((canvasHeight * (normalRangeMax - normalRangeMin)) / rangey);
				this.target.drawRect(canvasLeft, ytop, canvasWidth, height, undefined, this.options.get('normalRangeColor')).append();
			},

			render: function () {
				var options = this.options,
					target = this.target,
					canvasWidth = this.canvasWidth,
					canvasHeight = this.canvasHeight,
					vertices = this.vertices,
					spotRadius = options.get('spotRadius'),
					regionMap = this.regionMap,
					rangex, rangey, yvallast,
					canvasTop, canvasLeft,
					vertex, path, paths, x, y, xnext, xpos, xposnext,
					last, next, yvalcount, lineShapes, fillShapes, plen,
					valueSpots, hlSpotsEnabled, color, xvalues, yvalues, i;

				if (!line._super.render.call(this)) {
					return;
				}

				this.scanValues();
				this.processRangeOptions();

				xvalues = this.xvalues;
				yvalues = this.yvalues;

				if (!this.yminmax.length || this.yvalues.length < 2) {
					// empty or all null valuess
					return;
				}

				canvasTop = canvasLeft = 0;

				rangex = this.maxx - this.minx === 0 ? 1 : this.maxx - this.minx;
				rangey = this.maxy - this.miny === 0 ? 1 : this.maxy - this.miny;
				yvallast = this.yvalues.length - 1;

				if (spotRadius && (canvasWidth < (spotRadius * 4) || canvasHeight < (spotRadius * 4))) {
					spotRadius = 0;
				}
				if (spotRadius) {
					// adjust the canvas size as required so that spots will fit
					hlSpotsEnabled = options.get('highlightSpotColor') &&  !options.get('disableInteraction');
					if (hlSpotsEnabled || options.get('minSpotColor') || (options.get('spotColor') && yvalues[yvallast] === this.miny)) {
						canvasHeight -= Math.ceil(spotRadius);
					}
					if (hlSpotsEnabled || options.get('maxSpotColor') || (options.get('spotColor') && yvalues[yvallast] === this.maxy)) {
						canvasHeight -= Math.ceil(spotRadius);
						canvasTop += Math.ceil(spotRadius);
					}
					if (hlSpotsEnabled ||
						((options.get('minSpotColor') || options.get('maxSpotColor')) && (yvalues[0] === this.miny || yvalues[0] === this.maxy))) {
						canvasLeft += Math.ceil(spotRadius);
						canvasWidth -= Math.ceil(spotRadius);
					}
					if (hlSpotsEnabled || options.get('spotColor') ||
						(options.get('minSpotColor') || options.get('maxSpotColor') &&
						(yvalues[yvallast] === this.miny || yvalues[yvallast] === this.maxy))) {
						canvasWidth -= Math.ceil(spotRadius);
					}
				}


				canvasHeight--;

				if (options.get('normalRangeMin') !== undefined && !options.get('drawNormalOnTop')) {
					this.drawNormalRange(canvasLeft, canvasTop, canvasHeight, canvasWidth, rangey);
				}

				path = [];
				paths = [path];
				last = next = null;
				yvalcount = yvalues.length;
				for (i = 0; i < yvalcount; i++) {
					x = xvalues[i];
					xnext = xvalues[i + 1];
					y = yvalues[i];
					xpos = canvasLeft + Math.round((x - this.minx) * (canvasWidth / rangex));
					xposnext = i < yvalcount - 1 ? canvasLeft + Math.round((xnext - this.minx) * (canvasWidth / rangex)) : canvasWidth;
					next = xpos + ((xposnext - xpos) / 2);
					regionMap[i] = [last || 0, next, i];
					last = next;
					if (y === null) {
						if (i) {
							if (yvalues[i - 1] !== null) {
								path = [];
								paths.push(path);
							}
							vertices.push(null);
						}
					} else {
						if (y < this.miny) {
							y = this.miny;
						}
						if (y > this.maxy) {
							y = this.maxy;
						}
						if (!path.length) {
							// previous value was null
							path.push([xpos, canvasTop + canvasHeight]);
						}
						vertex = [xpos, canvasTop + Math.round(canvasHeight - (canvasHeight * ((y - this.miny) / rangey)))];
						path.push(vertex);
						vertices.push(vertex);
					}
				}

				lineShapes = [];
				fillShapes = [];
				plen = paths.length;
				for (i = 0; i < plen; i++) {
					path = paths[i];
					if (path.length) {
						if (options.get('fillColor')) {
							path.push([path[path.length - 1][0], (canvasTop + canvasHeight)]);
							fillShapes.push(path.slice(0));
							path.pop();
						}
						// if there's only a single point in this path, then we want to display it
						// as a vertical line which means we keep path[0]  as is
						if (path.length > 2) {
							// else we want the first value
							path[0] = [path[0][0], path[1][1]];
						}
						lineShapes.push(path);
					}
				}

				// draw the fill first, then optionally the normal range, then the line on top of that
				plen = fillShapes.length;
				for (i = 0; i < plen; i++) {
					target.drawShape(fillShapes[i],
						options.get('fillColor'), options.get('fillColor')).append();
				}

				if (options.get('normalRangeMin') !== undefined && options.get('drawNormalOnTop')) {
					this.drawNormalRange(canvasLeft, canvasTop, canvasHeight, canvasWidth, rangey);
				}

				plen = lineShapes.length;
				for (i = 0; i < plen; i++) {
					target.drawShape(lineShapes[i], options.get('lineColor'), undefined,
						options.get('lineWidth')).append();
				}

				if (spotRadius && options.get('valueSpots')) {
					valueSpots = options.get('valueSpots');
					if (valueSpots.get === undefined) {
						valueSpots = new RangeMap(valueSpots);
					}
					for (i = 0; i < yvalcount; i++) {
						color = valueSpots.get(yvalues[i]);
						if (color) {
							target.drawCircle(canvasLeft + Math.round((xvalues[i] - this.minx) * (canvasWidth / rangex)),
								canvasTop + Math.round(canvasHeight - (canvasHeight * ((yvalues[i] - this.miny) / rangey))),
								spotRadius, undefined,
								color).append();
						}
					}

				}
				if (spotRadius && options.get('spotColor') && yvalues[yvallast] !== null) {
					target.drawCircle(canvasLeft + Math.round((xvalues[xvalues.length - 1] - this.minx) * (canvasWidth / rangex)),
						canvasTop + Math.round(canvasHeight - (canvasHeight * ((yvalues[yvallast] - this.miny) / rangey))),
						spotRadius, undefined,
						options.get('spotColor')).append();
				}
				if (this.maxy !== this.minyorg) {
					if (spotRadius && options.get('minSpotColor')) {
						x = xvalues[$.inArray(this.minyorg, yvalues)];
						target.drawCircle(canvasLeft + Math.round((x - this.minx) * (canvasWidth / rangex)),
							canvasTop + Math.round(canvasHeight - (canvasHeight * ((this.minyorg - this.miny) / rangey))),
							spotRadius, undefined,
							options.get('minSpotColor')).append();
					}
					if (spotRadius && options.get('maxSpotColor')) {
						x = xvalues[$.inArray(this.maxyorg, yvalues)];
						target.drawCircle(canvasLeft + Math.round((x - this.minx) * (canvasWidth / rangex)),
							canvasTop + Math.round(canvasHeight - (canvasHeight * ((this.maxyorg - this.miny) / rangey))),
							spotRadius, undefined,
							options.get('maxSpotColor')).append();
					}
				}

				this.lastShapeId = target.getLastShapeId();
				this.canvasTop = canvasTop;
				target.render();
			}
		});

		/**
		 * Bar charts
		 */
		$.fn.sparkline.bar = bar = createClass($.fn.sparkline._base, barHighlightMixin, {
			type: 'bar',

			init: function (el, values, options, width, height) {
				var barWidth = parseInt(options.get('barWidth'), 10),
					barSpacing = parseInt(options.get('barSpacing'), 10),
					chartRangeMin = options.get('chartRangeMin'),
					chartRangeMax = options.get('chartRangeMax'),
					chartRangeClip = options.get('chartRangeClip'),
					stackMin = Infinity,
					stackMax = -Infinity,
					isStackString, groupMin, groupMax, stackRanges,
					numValues, i, vlen, range, zeroAxis, xaxisOffset, min, max, clipMin, clipMax,
					stacked, vlist, j, slen, svals, val, yoffset, yMaxCalc, canvasHeightEf;
				bar._super.init.call(this, el, values, options, width, height);

				// scan values to determine whether to stack bars
				for (i = 0, vlen = values.length; i < vlen; i++) {
					val = values[i];
					isStackString = typeof(val) === 'string' && val.indexOf(':') > -1;
					if (isStackString || $.isArray(val)) {
						stacked = true;
						if (isStackString) {
							val = values[i] = normalizeValues(val.split(':'));
						}
						val = remove(val, null); // min/max will treat null as zero
						groupMin = Math.min.apply(Math, val);
						groupMax = Math.max.apply(Math, val);
						if (groupMin < stackMin) {
							stackMin = groupMin;
						}
						if (groupMax > stackMax) {
							stackMax = groupMax;
						}
					}
				}

				this.stacked = stacked;
				this.regionShapes = {};
				this.barWidth = barWidth;
				this.barSpacing = barSpacing;
				this.totalBarWidth = barWidth + barSpacing;
				this.width = width = (values.length * barWidth) + ((values.length - 1) * barSpacing);

				this.initTarget();

				if (chartRangeClip) {
					clipMin = chartRangeMin === undefined ? -Infinity : chartRangeMin;
					clipMax = chartRangeMax === undefined ? Infinity : chartRangeMax;
				}

				numValues = [];
				stackRanges = stacked ? [] : numValues;
				var stackTotals = [];
				var stackRangesNeg = [];
				for (i = 0, vlen = values.length; i < vlen; i++) {
					if (stacked) {
						vlist = values[i];
						values[i] = svals = [];
						stackTotals[i] = 0;
						stackRanges[i] = stackRangesNeg[i] = 0;
						for (j = 0, slen = vlist.length; j < slen; j++) {
							val = svals[j] = chartRangeClip ? clipval(vlist[j], clipMin, clipMax) : vlist[j];
							if (val !== null) {
								if (val > 0) {
									stackTotals[i] += val;
								}
								if (stackMin < 0 && stackMax > 0) {
									if (val < 0) {
										stackRangesNeg[i] += Math.abs(val);
									} else {
										stackRanges[i] += val;
									}
								} else {
									stackRanges[i] += Math.abs(val - (val < 0 ? stackMax : stackMin));
								}
								numValues.push(val);
							}
						}
					} else {
						val = chartRangeClip ? clipval(values[i], clipMin, clipMax) : values[i];
						val = values[i] = normalizeValue(val);
						if (val !== null) {
							numValues.push(val);
						}
					}
				}
				this.max = max = Math.max.apply(Math, numValues);
				this.min = min = Math.min.apply(Math, numValues);
				this.stackMax = stackMax = stacked ? Math.max.apply(Math, stackTotals) : max;
				this.stackMin = stackMin = stacked ? Math.min.apply(Math, numValues) : min;

				if (options.get('chartRangeMin') !== undefined && (options.get('chartRangeClip') || options.get('chartRangeMin') < min)) {
					min = options.get('chartRangeMin');
				}
				if (options.get('chartRangeMax') !== undefined && (options.get('chartRangeClip') || options.get('chartRangeMax') > max)) {
					max = options.get('chartRangeMax');
				}

				this.zeroAxis = zeroAxis = options.get('zeroAxis', true);
				if (min <= 0 && max >= 0 && zeroAxis) {
					xaxisOffset = 0;
				} else if (zeroAxis == false) {
					xaxisOffset = min;
				} else if (min > 0) {
					xaxisOffset = min;
				} else {
					xaxisOffset = max;
				}
				this.xaxisOffset = xaxisOffset;

				range = stacked ? (Math.max.apply(Math, stackRanges) + Math.max.apply(Math, stackRangesNeg)) : max - min;

				// as we plot zero/min values a single pixel line, we add a pixel to all other
				// values - Reduce the effective canvas size to suit
				this.canvasHeightEf = (zeroAxis && min < 0) ? this.canvasHeight - 2 : this.canvasHeight - 1;

				if (min < xaxisOffset) {
					yMaxCalc = (stacked && max >= 0) ? stackMax : max;
					yoffset = (yMaxCalc - xaxisOffset) / range * this.canvasHeight;
					if (yoffset !== Math.ceil(yoffset)) {
						this.canvasHeightEf -= 2;
						yoffset = Math.ceil(yoffset);
					}
				} else {
					yoffset = this.canvasHeight;
				}
				this.yoffset = yoffset;

				if ($.isArray(options.get('colorMap'))) {
					this.colorMapByIndex = options.get('colorMap');
					this.colorMapByValue = null;
				} else {
					this.colorMapByIndex = null;
					this.colorMapByValue = options.get('colorMap');
					if (this.colorMapByValue && this.colorMapByValue.get === undefined) {
						this.colorMapByValue = new RangeMap(this.colorMapByValue);
					}
				}

				this.range = range;
			},

			getRegion: function (el, x, y) {
				var result = Math.floor(x / this.totalBarWidth);
				return (result < 0 || result >= this.values.length) ? undefined : result;
			},

			getCurrentRegionFields: function () {
				var currentRegion = this.currentRegion,
					values = ensureArray(this.values[currentRegion]),
					result = [],
					value, i;
				for (i = values.length; i--;) {
					value = values[i];
					result.push({
						isNull: value === null,
						value: value,
						color: this.calcColor(i, value, currentRegion),
						offset: currentRegion
					});
				}
				return result;
			},

			calcColor: function (stacknum, value, valuenum) {
				var colorMapByIndex = this.colorMapByIndex,
					colorMapByValue = this.colorMapByValue,
					options = this.options,
					color, newColor;
				if (this.stacked) {
					color = options.get('stackedBarColor');
				} else {
					color = (value < 0) ? options.get('negBarColor') : options.get('barColor');
				}
				if (value === 0 && options.get('zeroColor') !== undefined) {
					color = options.get('zeroColor');
				}
				if (colorMapByValue && (newColor = colorMapByValue.get(value))) {
					color = newColor;
				} else if (colorMapByIndex && colorMapByIndex.length > valuenum) {
					color = colorMapByIndex[valuenum];
				}
				return $.isArray(color) ? color[stacknum % color.length] : color;
			},

			/**
			 * Render bar(s) for a region
			 */
			renderRegion: function (valuenum, highlight) {
				var vals = this.values[valuenum],
					options = this.options,
					xaxisOffset = this.xaxisOffset,
					result = [],
					range = this.range,
					stacked = this.stacked,
					target = this.target,
					x = valuenum * this.totalBarWidth,
					canvasHeightEf = this.canvasHeightEf,
					yoffset = this.yoffset,
					y, height, color, isNull, yoffsetNeg, i, valcount, val, minPlotted, allMin;

				vals = $.isArray(vals) ? vals : [vals];
				valcount = vals.length;
				val = vals[0];
				isNull = all(null, vals);
				allMin = all(xaxisOffset, vals, true);

				if (isNull) {
					if (options.get('nullColor')) {
						color = highlight ? options.get('nullColor') : this.calcHighlightColor(options.get('nullColor'), options);
						y = (yoffset > 0) ? yoffset - 1 : yoffset;
						return target.drawRect(x, y, this.barWidth - 1, 0, color, color);
					} else {
						return undefined;
					}
				}
				yoffsetNeg = yoffset;
				for (i = 0; i < valcount; i++) {
					val = vals[i];

					if (stacked && val === xaxisOffset) {
						if (!allMin || minPlotted) {
							continue;
						}
						minPlotted = true;
					}

					if (range > 0) {
						height = Math.floor(canvasHeightEf * ((Math.abs(val - xaxisOffset) / range))) + 1;
					} else {
						height = 1;
					}
					if (val < xaxisOffset || (val === xaxisOffset && yoffset === 0)) {
						y = yoffsetNeg;
						yoffsetNeg += height;
					} else {
						y = yoffset - height;
						yoffset -= height;
					}
					color = this.calcColor(i, val, valuenum);
					if (highlight) {
						color = this.calcHighlightColor(color, options);
					}
					result.push(target.drawRect(x, y, this.barWidth - 1, height - 1, color, color));
				}
				if (result.length === 1) {
					return result[0];
				}
				return result;
			}
		});

		/**
		 * Tristate charts
		 */
		$.fn.sparkline.tristate = tristate = createClass($.fn.sparkline._base, barHighlightMixin, {
			type: 'tristate',

			init: function (el, values, options, width, height) {
				var barWidth = parseInt(options.get('barWidth'), 10),
					barSpacing = parseInt(options.get('barSpacing'), 10);
				tristate._super.init.call(this, el, values, options, width, height);

				this.regionShapes = {};
				this.barWidth = barWidth;
				this.barSpacing = barSpacing;
				this.totalBarWidth = barWidth + barSpacing;
				this.values = $.map(values, Number);
				this.width = width = (values.length * barWidth) + ((values.length - 1) * barSpacing);

				if ($.isArray(options.get('colorMap'))) {
					this.colorMapByIndex = options.get('colorMap');
					this.colorMapByValue = null;
				} else {
					this.colorMapByIndex = null;
					this.colorMapByValue = options.get('colorMap');
					if (this.colorMapByValue && this.colorMapByValue.get === undefined) {
						this.colorMapByValue = new RangeMap(this.colorMapByValue);
					}
				}
				this.initTarget();
			},

			getRegion: function (el, x, y) {
				return Math.floor(x / this.totalBarWidth);
			},

			getCurrentRegionFields: function () {
				var currentRegion = this.currentRegion;
				return {
					isNull: this.values[currentRegion] === undefined,
					value: this.values[currentRegion],
					color: this.calcColor(this.values[currentRegion], currentRegion),
					offset: currentRegion
				};
			},

			calcColor: function (value, valuenum) {
				var values = this.values,
					options = this.options,
					colorMapByIndex = this.colorMapByIndex,
					colorMapByValue = this.colorMapByValue,
					color, newColor;

				if (colorMapByValue && (newColor = colorMapByValue.get(value))) {
					color = newColor;
				} else if (colorMapByIndex && colorMapByIndex.length > valuenum) {
					color = colorMapByIndex[valuenum];
				} else if (values[valuenum] < 0) {
					color = options.get('negBarColor');
				} else if (values[valuenum] > 0) {
					color = options.get('posBarColor');
				} else {
					color = options.get('zeroBarColor');
				}
				return color;
			},

			renderRegion: function (valuenum, highlight) {
				var values = this.values,
					options = this.options,
					target = this.target,
					canvasHeight, height, halfHeight,
					x, y, color;

				canvasHeight = target.pixelHeight;
				halfHeight = Math.round(canvasHeight / 2);

				x = valuenum * this.totalBarWidth;
				if (values[valuenum] < 0) {
					y = halfHeight;
					height = halfHeight - 1;
				} else if (values[valuenum] > 0) {
					y = 0;
					height = halfHeight - 1;
				} else {
					y = halfHeight - 1;
					height = 2;
				}
				color = this.calcColor(values[valuenum], valuenum);
				if (color === null) {
					return;
				}
				if (highlight) {
					color = this.calcHighlightColor(color, options);
				}
				return target.drawRect(x, y, this.barWidth - 1, height - 1, color, color);
			}
		});

		/**
		 * Discrete charts
		 */
		$.fn.sparkline.discrete = discrete = createClass($.fn.sparkline._base, barHighlightMixin, {
			type: 'discrete',

			init: function (el, values, options, width, height) {
				discrete._super.init.call(this, el, values, options, width, height);

				this.regionShapes = {};
				this.values = values = $.map(values, Number);
				this.min = Math.min.apply(Math, values);
				this.max = Math.max.apply(Math, values);
				this.range = this.max - this.min;
				this.width = width = options.get('width') === 'auto' ? values.length * 2 : this.width;
				this.interval = Math.floor(width / values.length);
				this.itemWidth = width / values.length;
				if (options.get('chartRangeMin') !== undefined && (options.get('chartRangeClip') || options.get('chartRangeMin') < this.min)) {
					this.min = options.get('chartRangeMin');
				}
				if (options.get('chartRangeMax') !== undefined && (options.get('chartRangeClip') || options.get('chartRangeMax') > this.max)) {
					this.max = options.get('chartRangeMax');
				}
				this.initTarget();
				if (this.target) {
					this.lineHeight = options.get('lineHeight') === 'auto' ? Math.round(this.canvasHeight * 0.3) : options.get('lineHeight');
				}
			},

			getRegion: function (el, x, y) {
				return Math.floor(x / this.itemWidth);
			},

			getCurrentRegionFields: function () {
				var currentRegion = this.currentRegion;
				return {
					isNull: this.values[currentRegion] === undefined,
					value: this.values[currentRegion],
					offset: currentRegion
				};
			},

			renderRegion: function (valuenum, highlight) {
				var values = this.values,
					options = this.options,
					min = this.min,
					max = this.max,
					range = this.range,
					interval = this.interval,
					target = this.target,
					canvasHeight = this.canvasHeight,
					lineHeight = this.lineHeight,
					pheight = canvasHeight - lineHeight,
					ytop, val, color, x;

				val = clipval(values[valuenum], min, max);
				x = valuenum * interval;
				ytop = Math.round(pheight - pheight * ((val - min) / range));
				color = (options.get('thresholdColor') && val < options.get('thresholdValue')) ? options.get('thresholdColor') : options.get('lineColor');
				if (highlight) {
					color = this.calcHighlightColor(color, options);
				}
				return target.drawLine(x, ytop, x, ytop + lineHeight, color);
			}
		});

		/**
		 * Bullet charts
		 */
		$.fn.sparkline.bullet = bullet = createClass($.fn.sparkline._base, {
			type: 'bullet',

			init: function (el, values, options, width, height) {
				var min, max, vals;
				bullet._super.init.call(this, el, values, options, width, height);

				// values: target, performance, range1, range2, range3
				this.values = values = normalizeValues(values);
				// target or performance could be null
				vals = values.slice();
				vals[0] = vals[0] === null ? vals[2] : vals[0];
				vals[1] = values[1] === null ? vals[2] : vals[1];
				min = Math.min.apply(Math, values);
				max = Math.max.apply(Math, values);
				if (options.get('base') === undefined) {
					min = min < 0 ? min : 0;
				} else {
					min = options.get('base');
				}
				this.min = min;
				this.max = max;
				this.range = max - min;
				this.shapes = {};
				this.valueShapes = {};
				this.regiondata = {};
				this.width = width = options.get('width') === 'auto' ? '4.0em' : width;
				this.target = this.$el.simpledraw(width, height, options.get('composite'));
				if (!values.length) {
					this.disabled = true;
				}
				this.initTarget();
			},

			getRegion: function (el, x, y) {
				var shapeid = this.target.getShapeAt(el, x, y);
				return (shapeid !== undefined && this.shapes[shapeid] !== undefined) ? this.shapes[shapeid] : undefined;
			},

			getCurrentRegionFields: function () {
				var currentRegion = this.currentRegion;
				return {
					fieldkey: currentRegion.substr(0, 1),
					value: this.values[currentRegion.substr(1)],
					region: currentRegion
				};
			},

			changeHighlight: function (highlight) {
				var currentRegion = this.currentRegion,
					shapeid = this.valueShapes[currentRegion],
					shape;
				delete this.shapes[shapeid];
				switch (currentRegion.substr(0, 1)) {
					case 'r':
						shape = this.renderRange(currentRegion.substr(1), highlight);
						break;
					case 'p':
						shape = this.renderPerformance(highlight);
						break;
					case 't':
						shape = this.renderTarget(highlight);
						break;
				}
				this.valueShapes[currentRegion] = shape.id;
				this.shapes[shape.id] = currentRegion;
				this.target.replaceWithShape(shapeid, shape);
			},

			renderRange: function (rn, highlight) {
				var rangeval = this.values[rn],
					rangewidth = Math.round(this.canvasWidth * ((rangeval - this.min) / this.range)),
					color = this.options.get('rangeColors')[rn - 2];
				if (highlight) {
					color = this.calcHighlightColor(color, this.options);
				}
				return this.target.drawRect(0, 0, rangewidth - 1, this.canvasHeight - 1, color, color);
			},

			renderPerformance: function (highlight) {
				var perfval = this.values[1],
					perfwidth = Math.round(this.canvasWidth * ((perfval - this.min) / this.range)),
					color = this.options.get('performanceColor');
				if (highlight) {
					color = this.calcHighlightColor(color, this.options);
				}
				return this.target.drawRect(0, Math.round(this.canvasHeight * 0.3), perfwidth - 1,
					Math.round(this.canvasHeight * 0.4) - 1, color, color);
			},

			renderTarget: function (highlight) {
				var targetval = this.values[0],
					x = Math.round(this.canvasWidth * ((targetval - this.min) / this.range) - (this.options.get('targetWidth') / 2)),
					targettop = Math.round(this.canvasHeight * 0.10),
					targetheight = this.canvasHeight - (targettop * 2),
					color = this.options.get('targetColor');
				if (highlight) {
					color = this.calcHighlightColor(color, this.options);
				}
				return this.target.drawRect(x, targettop, this.options.get('targetWidth') - 1, targetheight - 1, color, color);
			},

			render: function () {
				var vlen = this.values.length,
					target = this.target,
					i, shape;
				if (!bullet._super.render.call(this)) {
					return;
				}
				for (i = 2; i < vlen; i++) {
					shape = this.renderRange(i).append();
					this.shapes[shape.id] = 'r' + i;
					this.valueShapes['r' + i] = shape.id;
				}
				if (this.values[1] !== null) {
					shape = this.renderPerformance().append();
					this.shapes[shape.id] = 'p1';
					this.valueShapes.p1 = shape.id;
				}
				if (this.values[0] !== null) {
					shape = this.renderTarget().append();
					this.shapes[shape.id] = 't0';
					this.valueShapes.t0 = shape.id;
				}
				target.render();
			}
		});

		/**
		 * Pie charts
		 */
		$.fn.sparkline.pie = pie = createClass($.fn.sparkline._base, {
			type: 'pie',

			init: function (el, values, options, width, height) {
				var total = 0, i;

				pie._super.init.call(this, el, values, options, width, height);

				this.shapes = {}; // map shape ids to value offsets
				this.valueShapes = {}; // maps value offsets to shape ids
				this.values = values = $.map(values, Number);

				if (options.get('width') === 'auto') {
					this.width = this.height;
				}

				if (values.length > 0) {
					for (i = values.length; i--;) {
						total += values[i];
					}
				}
				this.total = total;
				this.initTarget();
				this.radius = Math.floor(Math.min(this.canvasWidth, this.canvasHeight) / 2);
			},

			getRegion: function (el, x, y) {
				var shapeid = this.target.getShapeAt(el, x, y);
				return (shapeid !== undefined && this.shapes[shapeid] !== undefined) ? this.shapes[shapeid] : undefined;
			},

			getCurrentRegionFields: function () {
				var currentRegion = this.currentRegion;
				return {
					isNull: this.values[currentRegion] === undefined,
					value: this.values[currentRegion],
					percent: this.values[currentRegion] / this.total * 100,
					color: this.options.get('sliceColors')[currentRegion % this.options.get('sliceColors').length],
					offset: currentRegion
				};
			},

			changeHighlight: function (highlight) {
				var currentRegion = this.currentRegion,
					newslice = this.renderSlice(currentRegion, highlight),
					shapeid = this.valueShapes[currentRegion];
				delete this.shapes[shapeid];
				this.target.replaceWithShape(shapeid, newslice);
				this.valueShapes[currentRegion] = newslice.id;
				this.shapes[newslice.id] = currentRegion;
			},

			renderSlice: function (valuenum, highlight) {
				var target = this.target,
					options = this.options,
					radius = this.radius,
					borderWidth = options.get('borderWidth'),
					offset = options.get('offset'),
					circle = 2 * Math.PI,
					values = this.values,
					total = this.total,
					next = offset ? (2*Math.PI)*(offset/360) : 0,
					start, end, i, vlen, color;

				vlen = values.length;
				for (i = 0; i < vlen; i++) {
					start = next;
					end = next;
					if (total > 0) {  // avoid divide by zero
						end = next + (circle * (values[i] / total));
					}
					if (valuenum === i) {
						color = options.get('sliceColors')[i % options.get('sliceColors').length];
						if (highlight) {
							color = this.calcHighlightColor(color, options);
						}

						return target.drawPieSlice(radius, radius, radius - borderWidth, start, end, undefined, color);
					}
					next = end;
				}
			},

			render: function () {
				var target = this.target,
					values = this.values,
					options = this.options,
					radius = this.radius,
					borderWidth = options.get('borderWidth'),
					shape, i;

				if (!pie._super.render.call(this)) {
					return;
				}
				if (borderWidth) {
					target.drawCircle(radius, radius, Math.floor(radius - (borderWidth / 2)),
						options.get('borderColor'), undefined, borderWidth).append();
				}
				for (i = values.length; i--;) {
					if (values[i]) { // don't render zero values
						shape = this.renderSlice(i).append();
						this.valueShapes[i] = shape.id; // store just the shapeid
						this.shapes[shape.id] = i;
					}
				}
				target.render();
			}
		});

		/**
		 * Box plots
		 */
		$.fn.sparkline.box = box = createClass($.fn.sparkline._base, {
			type: 'box',

			init: function (el, values, options, width, height) {
				box._super.init.call(this, el, values, options, width, height);
				this.values = $.map(values, Number);
				this.width = options.get('width') === 'auto' ? '4.0em' : width;
				this.initTarget();
				if (!this.values.length) {
					this.disabled = 1;
				}
			},

			/**
			 * Simulate a single region
			 */
			getRegion: function () {
				return 1;
			},

			getCurrentRegionFields: function () {
				var result = [
					{ field: 'lq', value: this.quartiles[0] },
					{ field: 'med', value: this.quartiles[1] },
					{ field: 'uq', value: this.quartiles[2] }
				];
				if (this.loutlier !== undefined) {
					result.push({ field: 'lo', value: this.loutlier});
				}
				if (this.routlier !== undefined) {
					result.push({ field: 'ro', value: this.routlier});
				}
				if (this.lwhisker !== undefined) {
					result.push({ field: 'lw', value: this.lwhisker});
				}
				if (this.rwhisker !== undefined) {
					result.push({ field: 'rw', value: this.rwhisker});
				}
				return result;
			},

			render: function () {
				var target = this.target,
					values = this.values,
					vlen = values.length,
					options = this.options,
					canvasWidth = this.canvasWidth,
					canvasHeight = this.canvasHeight,
					minValue = options.get('chartRangeMin') === undefined ? Math.min.apply(Math, values) : options.get('chartRangeMin'),
					maxValue = options.get('chartRangeMax') === undefined ? Math.max.apply(Math, values) : options.get('chartRangeMax'),
					canvasLeft = 0,
					lwhisker, loutlier, iqr, q1, q2, q3, rwhisker, routlier, i,
					size, unitSize;

				if (!box._super.render.call(this)) {
					return;
				}

				if (options.get('raw')) {
					if (options.get('showOutliers') && values.length > 5) {
						loutlier = values[0];
						lwhisker = values[1];
						q1 = values[2];
						q2 = values[3];
						q3 = values[4];
						rwhisker = values[5];
						routlier = values[6];
					} else {
						lwhisker = values[0];
						q1 = values[1];
						q2 = values[2];
						q3 = values[3];
						rwhisker = values[4];
					}
				} else {
					values.sort(function (a, b) { return a - b; });
					q1 = quartile(values, 1);
					q2 = quartile(values, 2);
					q3 = quartile(values, 3);
					iqr = q3 - q1;
					if (options.get('showOutliers')) {
						lwhisker = rwhisker = undefined;
						for (i = 0; i < vlen; i++) {
							if (lwhisker === undefined && values[i] > q1 - (iqr * options.get('outlierIQR'))) {
								lwhisker = values[i];
							}
							if (values[i] < q3 + (iqr * options.get('outlierIQR'))) {
								rwhisker = values[i];
							}
						}
						loutlier = values[0];
						routlier = values[vlen - 1];
					} else {
						lwhisker = values[0];
						rwhisker = values[vlen - 1];
					}
				}
				this.quartiles = [q1, q2, q3];
				this.lwhisker = lwhisker;
				this.rwhisker = rwhisker;
				this.loutlier = loutlier;
				this.routlier = routlier;

				unitSize = canvasWidth / (maxValue - minValue + 1);
				if (options.get('showOutliers')) {
					canvasLeft = Math.ceil(options.get('spotRadius'));
					canvasWidth -= 2 * Math.ceil(options.get('spotRadius'));
					unitSize = canvasWidth / (maxValue - minValue + 1);
					if (loutlier < lwhisker) {
						target.drawCircle((loutlier - minValue) * unitSize + canvasLeft,
							canvasHeight / 2,
							options.get('spotRadius'),
							options.get('outlierLineColor'),
							options.get('outlierFillColor')).append();
					}
					if (routlier > rwhisker) {
						target.drawCircle((routlier - minValue) * unitSize + canvasLeft,
							canvasHeight / 2,
							options.get('spotRadius'),
							options.get('outlierLineColor'),
							options.get('outlierFillColor')).append();
					}
				}

				// box
				target.drawRect(
					Math.round((q1 - minValue) * unitSize + canvasLeft),
					Math.round(canvasHeight * 0.1),
					Math.round((q3 - q1) * unitSize),
					Math.round(canvasHeight * 0.8),
					options.get('boxLineColor'),
					options.get('boxFillColor')).append();
				// left whisker
				target.drawLine(
					Math.round((lwhisker - minValue) * unitSize + canvasLeft),
					Math.round(canvasHeight / 2),
					Math.round((q1 - minValue) * unitSize + canvasLeft),
					Math.round(canvasHeight / 2),
					options.get('lineColor')).append();
				target.drawLine(
					Math.round((lwhisker - minValue) * unitSize + canvasLeft),
					Math.round(canvasHeight / 4),
					Math.round((lwhisker - minValue) * unitSize + canvasLeft),
					Math.round(canvasHeight - canvasHeight / 4),
					options.get('whiskerColor')).append();
				// right whisker
				target.drawLine(Math.round((rwhisker - minValue) * unitSize + canvasLeft),
					Math.round(canvasHeight / 2),
					Math.round((q3 - minValue) * unitSize + canvasLeft),
					Math.round(canvasHeight / 2),
					options.get('lineColor')).append();
				target.drawLine(
					Math.round((rwhisker - minValue) * unitSize + canvasLeft),
					Math.round(canvasHeight / 4),
					Math.round((rwhisker - minValue) * unitSize + canvasLeft),
					Math.round(canvasHeight - canvasHeight / 4),
					options.get('whiskerColor')).append();
				// median line
				target.drawLine(
					Math.round((q2 - minValue) * unitSize + canvasLeft),
					Math.round(canvasHeight * 0.1),
					Math.round((q2 - minValue) * unitSize + canvasLeft),
					Math.round(canvasHeight * 0.9),
					options.get('medianColor')).append();
				if (options.get('target')) {
					size = Math.ceil(options.get('spotRadius'));
					target.drawLine(
						Math.round((options.get('target') - minValue) * unitSize + canvasLeft),
						Math.round((canvasHeight / 2) - size),
						Math.round((options.get('target') - minValue) * unitSize + canvasLeft),
						Math.round((canvasHeight / 2) + size),
						options.get('targetColor')).append();
					target.drawLine(
						Math.round((options.get('target') - minValue) * unitSize + canvasLeft - size),
						Math.round(canvasHeight / 2),
						Math.round((options.get('target') - minValue) * unitSize + canvasLeft + size),
						Math.round(canvasHeight / 2),
						options.get('targetColor')).append();
				}
				target.render();
			}
		});

		// Setup a very simple "virtual canvas" to make drawing the few shapes we need easier
		// This is accessible as $(foo).simpledraw()

		VShape = createClass({
			init: function (target, id, type, args) {
				this.target = target;
				this.id = id;
				this.type = type;
				this.args = args;
			},
			append: function () {
				this.target.appendShape(this);
				return this;
			}
		});

		VCanvas_base = createClass({
			_pxregex: /(\d+)(px)?\s*$/i,

			init: function (width, height, target) {
				if (!width) {
					return;
				}
				this.width = width;
				this.height = height;
				this.target = target;
				this.lastShapeId = null;
				if (target[0]) {
					target = target[0];
				}
				$.data(target, '_jqs_vcanvas', this);
			},

			drawLine: function (x1, y1, x2, y2, lineColor, lineWidth) {
				return this.drawShape([[x1, y1], [x2, y2]], lineColor, lineWidth);
			},

			drawShape: function (path, lineColor, fillColor, lineWidth) {
				return this._genShape('Shape', [path, lineColor, fillColor, lineWidth]);
			},

			drawCircle: function (x, y, radius, lineColor, fillColor, lineWidth) {
				return this._genShape('Circle', [x, y, radius, lineColor, fillColor, lineWidth]);
			},

			drawPieSlice: function (x, y, radius, startAngle, endAngle, lineColor, fillColor) {
				return this._genShape('PieSlice', [x, y, radius, startAngle, endAngle, lineColor, fillColor]);
			},

			drawRect: function (x, y, width, height, lineColor, fillColor) {
				return this._genShape('Rect', [x, y, width, height, lineColor, fillColor]);
			},

			getElement: function () {
				return this.canvas;
			},

			/**
			 * Return the most recently inserted shape id
			 */
			getLastShapeId: function () {
				return this.lastShapeId;
			},

			/**
			 * Clear and reset the canvas
			 */
			reset: function () {
				alert('reset not implemented');
			},

			_insert: function (el, target) {
				$(target).html(el);
			},

			/**
			 * Calculate the pixel dimensions of the canvas
			 */
			_calculatePixelDims: function (width, height, canvas) {
				// XXX This should probably be a configurable option
				var match;
				match = this._pxregex.exec(height);
				if (match) {
					this.pixelHeight = match[1];
				} else {
					this.pixelHeight = $(canvas).height();
				}
				match = this._pxregex.exec(width);
				if (match) {
					this.pixelWidth = match[1];
				} else {
					this.pixelWidth = $(canvas).width();
				}
			},

			/**
			 * Generate a shape object and id for later rendering
			 */
			_genShape: function (shapetype, shapeargs) {
				var id = shapeCount++;
				shapeargs.unshift(id);
				return new VShape(this, id, shapetype, shapeargs);
			},

			/**
			 * Add a shape to the end of the render queue
			 */
			appendShape: function (shape) {
				alert('appendShape not implemented');
			},

			/**
			 * Replace one shape with another
			 */
			replaceWithShape: function (shapeid, shape) {
				alert('replaceWithShape not implemented');
			},

			/**
			 * Insert one shape after another in the render queue
			 */
			insertAfterShape: function (shapeid, shape) {
				alert('insertAfterShape not implemented');
			},

			/**
			 * Remove a shape from the queue
			 */
			removeShapeId: function (shapeid) {
				alert('removeShapeId not implemented');
			},

			/**
			 * Find a shape at the specified x/y co-ordinates
			 */
			getShapeAt: function (el, x, y) {
				alert('getShapeAt not implemented');
			},

			/**
			 * Render all queued shapes onto the canvas
			 */
			render: function () {
				alert('render not implemented');
			}
		});

		VCanvas_canvas = createClass(VCanvas_base, {
			init: function (width, height, target, interact) {
				VCanvas_canvas._super.init.call(this, width, height, target);
				this.canvas = document.createElement('canvas');
				if (target[0]) {
					target = target[0];
				}
				$.data(target, '_jqs_vcanvas', this);
				$(this.canvas).css({ display: 'inline-block', width: width, height: height, verticalAlign: 'top' });
				this._insert(this.canvas, target);
				this._calculatePixelDims(width, height, this.canvas);
				this.canvas.width = this.pixelWidth;
				this.canvas.height = this.pixelHeight;
				this.interact = interact;
				this.shapes = {};
				this.shapeseq = [];
				this.currentTargetShapeId = undefined;
				$(this.canvas).css({width: this.pixelWidth, height: this.pixelHeight});
			},

			_getContext: function (lineColor, fillColor, lineWidth) {
				var context = this.canvas.getContext('2d');
				if (lineColor !== undefined) {
					context.strokeStyle = lineColor;
				}
				context.lineWidth = lineWidth === undefined ? 1 : lineWidth;
				if (fillColor !== undefined) {
					context.fillStyle = fillColor;
				}
				return context;
			},

			reset: function () {
				var context = this._getContext();
				context.clearRect(0, 0, this.pixelWidth, this.pixelHeight);
				this.shapes = {};
				this.shapeseq = [];
				this.currentTargetShapeId = undefined;
			},

			_drawShape: function (shapeid, path, lineColor, fillColor, lineWidth) {
				var context = this._getContext(lineColor, fillColor, lineWidth),
					i, plen;
				context.beginPath();
				context.moveTo(path[0][0] + 0.5, path[0][1] + 0.5);
				for (i = 1, plen = path.length; i < plen; i++) {
					context.lineTo(path[i][0] + 0.5, path[i][1] + 0.5); // the 0.5 offset gives us crisp pixel-width lines
				}
				if (lineColor !== undefined) {
					context.stroke();
				}
				if (fillColor !== undefined) {
					context.fill();
				}
				if (this.targetX !== undefined && this.targetY !== undefined &&
					context.isPointInPath(this.targetX, this.targetY)) {
					this.currentTargetShapeId = shapeid;
				}
			},

			_drawCircle: function (shapeid, x, y, radius, lineColor, fillColor, lineWidth) {
				var context = this._getContext(lineColor, fillColor, lineWidth);
				context.beginPath();
				context.arc(x, y, radius, 0, 2 * Math.PI, false);
				if (this.targetX !== undefined && this.targetY !== undefined &&
					context.isPointInPath(this.targetX, this.targetY)) {
					this.currentTargetShapeId = shapeid;
				}
				if (lineColor !== undefined) {
					context.stroke();
				}
				if (fillColor !== undefined) {
					context.fill();
				}
			},

			_drawPieSlice: function (shapeid, x, y, radius, startAngle, endAngle, lineColor, fillColor) {
				var context = this._getContext(lineColor, fillColor);
				context.beginPath();
				context.moveTo(x, y);
				context.arc(x, y, radius, startAngle, endAngle, false);
				context.lineTo(x, y);
				context.closePath();
				if (lineColor !== undefined) {
					context.stroke();
				}
				if (fillColor) {
					context.fill();
				}
				if (this.targetX !== undefined && this.targetY !== undefined &&
					context.isPointInPath(this.targetX, this.targetY)) {
					this.currentTargetShapeId = shapeid;
				}
			},

			_drawRect: function (shapeid, x, y, width, height, lineColor, fillColor) {
				return this._drawShape(shapeid, [[x, y], [x + width, y], [x + width, y + height], [x, y + height], [x, y]], lineColor, fillColor);
			},

			appendShape: function (shape) {
				this.shapes[shape.id] = shape;
				this.shapeseq.push(shape.id);
				this.lastShapeId = shape.id;
				return shape.id;
			},

			replaceWithShape: function (shapeid, shape) {
				var shapeseq = this.shapeseq,
					i;
				this.shapes[shape.id] = shape;
				for (i = shapeseq.length; i--;) {
					if (shapeseq[i] == shapeid) {
						shapeseq[i] = shape.id;
					}
				}
				delete this.shapes[shapeid];
			},

			replaceWithShapes: function (shapeids, shapes) {
				var shapeseq = this.shapeseq,
					shapemap = {},
					sid, i, first;

				for (i = shapeids.length; i--;) {
					shapemap[shapeids[i]] = true;
				}
				for (i = shapeseq.length; i--;) {
					sid = shapeseq[i];
					if (shapemap[sid]) {
						shapeseq.splice(i, 1);
						delete this.shapes[sid];
						first = i;
					}
				}
				for (i = shapes.length; i--;) {
					shapeseq.splice(first, 0, shapes[i].id);
					this.shapes[shapes[i].id] = shapes[i];
				}

			},

			insertAfterShape: function (shapeid, shape) {
				var shapeseq = this.shapeseq,
					i;
				for (i = shapeseq.length; i--;) {
					if (shapeseq[i] === shapeid) {
						shapeseq.splice(i + 1, 0, shape.id);
						this.shapes[shape.id] = shape;
						return;
					}
				}
			},

			removeShapeId: function (shapeid) {
				var shapeseq = this.shapeseq,
					i;
				for (i = shapeseq.length; i--;) {
					if (shapeseq[i] === shapeid) {
						shapeseq.splice(i, 1);
						break;
					}
				}
				delete this.shapes[shapeid];
			},

			getShapeAt: function (el, x, y) {
				this.targetX = x;
				this.targetY = y;
				this.render();
				return this.currentTargetShapeId;
			},

			render: function () {
				var shapeseq = this.shapeseq,
					shapes = this.shapes,
					shapeCount = shapeseq.length,
					context = this._getContext(),
					shapeid, shape, i;
				context.clearRect(0, 0, this.pixelWidth, this.pixelHeight);
				for (i = 0; i < shapeCount; i++) {
					shapeid = shapeseq[i];
					shape = shapes[shapeid];
					this['_draw' + shape.type].apply(this, shape.args);
				}
				if (!this.interact) {
					// not interactive so no need to keep the shapes array
					this.shapes = {};
					this.shapeseq = [];
				}
			}

		});

		VCanvas_vml = createClass(VCanvas_base, {
			init: function (width, height, target) {
				var groupel;
				VCanvas_vml._super.init.call(this, width, height, target);
				if (target[0]) {
					target = target[0];
				}
				$.data(target, '_jqs_vcanvas', this);
				this.canvas = document.createElement('span');
				$(this.canvas).css({ display: 'inline-block', position: 'relative', overflow: 'hidden', width: width, height: height, margin: '0px', padding: '0px', verticalAlign: 'top'});
				this._insert(this.canvas, target);
				this._calculatePixelDims(width, height, this.canvas);
				this.canvas.width = this.pixelWidth;
				this.canvas.height = this.pixelHeight;
				groupel = '<v:group coordorigin="0 0" coordsize="' + this.pixelWidth + ' ' + this.pixelHeight + '"' +
					' style="position:absolute;top:0;left:0;width:' + this.pixelWidth + 'px;height=' + this.pixelHeight + 'px;"></v:group>';
				this.canvas.insertAdjacentHTML('beforeEnd', groupel);
				this.group = $(this.canvas).children()[0];
				this.rendered = false;
				this.prerender = '';
			},

			_drawShape: function (shapeid, path, lineColor, fillColor, lineWidth) {
				var vpath = [],
					initial, stroke, fill, closed, vel, plen, i;
				for (i = 0, plen = path.length; i < plen; i++) {
					vpath[i] = '' + (path[i][0]) + ',' + (path[i][1]);
				}
				initial = vpath.splice(0, 1);
				lineWidth = lineWidth === undefined ? 1 : lineWidth;
				stroke = lineColor === undefined ? ' stroked="false" ' : ' strokeWeight="' + lineWidth + 'px" strokeColor="' + lineColor + '" ';
				fill = fillColor === undefined ? ' filled="false"' : ' fillColor="' + fillColor + '" filled="true" ';
				closed = vpath[0] === vpath[vpath.length - 1] ? 'x ' : '';
				vel = '<v:shape coordorigin="0 0" coordsize="' + this.pixelWidth + ' ' + this.pixelHeight + '" ' +
					' id="jqsshape' + shapeid + '" ' +
					stroke +
					fill +
					' style="position:absolute;left:0px;top:0px;height:' + this.pixelHeight + 'px;width:' + this.pixelWidth + 'px;padding:0px;margin:0px;" ' +
					' path="m ' + initial + ' l ' + vpath.join(', ') + ' ' + closed + 'e">' +
					' </v:shape>';
				return vel;
			},

			_drawCircle: function (shapeid, x, y, radius, lineColor, fillColor, lineWidth) {
				var stroke, fill, vel;
				x -= radius;
				y -= radius;
				stroke = lineColor === undefined ? ' stroked="false" ' : ' strokeWeight="' + lineWidth + 'px" strokeColor="' + lineColor + '" ';
				fill = fillColor === undefined ? ' filled="false"' : ' fillColor="' + fillColor + '" filled="true" ';
				vel = '<v:oval ' +
					' id="jqsshape' + shapeid + '" ' +
					stroke +
					fill +
					' style="position:absolute;top:' + y + 'px; left:' + x + 'px; width:' + (radius * 2) + 'px; height:' + (radius * 2) + 'px"></v:oval>';
				return vel;

			},

			_drawPieSlice: function (shapeid, x, y, radius, startAngle, endAngle, lineColor, fillColor) {
				var vpath, startx, starty, endx, endy, stroke, fill, vel;
				if (startAngle === endAngle) {
					return '';  // VML seems to have problem when start angle equals end angle.
				}
				if ((endAngle - startAngle) === (2 * Math.PI)) {
					startAngle = 0.0;  // VML seems to have a problem when drawing a full circle that doesn't start 0
					endAngle = (2 * Math.PI);
				}

				startx = x + Math.round(Math.cos(startAngle) * radius);
				starty = y + Math.round(Math.sin(startAngle) * radius);
				endx = x + Math.round(Math.cos(endAngle) * radius);
				endy = y + Math.round(Math.sin(endAngle) * radius);

				if (startx === endx && starty === endy) {
					if ((endAngle - startAngle) < Math.PI) {
						// Prevent very small slices from being mistaken as a whole pie
						return '';
					}
					// essentially going to be the entire circle, so ignore startAngle
					startx = endx = x + radius;
					starty = endy = y;
				}

				if (startx === endx && starty === endy && (endAngle - startAngle) < Math.PI) {
					return '';
				}

				vpath = [x - radius, y - radius, x + radius, y + radius, startx, starty, endx, endy];
				stroke = lineColor === undefined ? ' stroked="false" ' : ' strokeWeight="1px" strokeColor="' + lineColor + '" ';
				fill = fillColor === undefined ? ' filled="false"' : ' fillColor="' + fillColor + '" filled="true" ';
				vel = '<v:shape coordorigin="0 0" coordsize="' + this.pixelWidth + ' ' + this.pixelHeight + '" ' +
					' id="jqsshape' + shapeid + '" ' +
					stroke +
					fill +
					' style="position:absolute;left:0px;top:0px;height:' + this.pixelHeight + 'px;width:' + this.pixelWidth + 'px;padding:0px;margin:0px;" ' +
					' path="m ' + x + ',' + y + ' wa ' + vpath.join(', ') + ' x e">' +
					' </v:shape>';
				return vel;
			},

			_drawRect: function (shapeid, x, y, width, height, lineColor, fillColor) {
				return this._drawShape(shapeid, [[x, y], [x, y + height], [x + width, y + height], [x + width, y], [x, y]], lineColor, fillColor);
			},

			reset: function () {
				this.group.innerHTML = '';
			},

			appendShape: function (shape) {
				var vel = this['_draw' + shape.type].apply(this, shape.args);
				if (this.rendered) {
					this.group.insertAdjacentHTML('beforeEnd', vel);
				} else {
					this.prerender += vel;
				}
				this.lastShapeId = shape.id;
				return shape.id;
			},

			replaceWithShape: function (shapeid, shape) {
				var existing = $('#jqsshape' + shapeid),
					vel = this['_draw' + shape.type].apply(this, shape.args);
				existing[0].outerHTML = vel;
			},

			replaceWithShapes: function (shapeids, shapes) {
				// replace the first shapeid with all the new shapes then toast the remaining old shapes
				var existing = $('#jqsshape' + shapeids[0]),
					replace = '',
					slen = shapes.length,
					i;
				for (i = 0; i < slen; i++) {
					replace += this['_draw' + shapes[i].type].apply(this, shapes[i].args);
				}
				existing[0].outerHTML = replace;
				for (i = 1; i < shapeids.length; i++) {
					$('#jqsshape' + shapeids[i]).remove();
				}
			},

			insertAfterShape: function (shapeid, shape) {
				var existing = $('#jqsshape' + shapeid),
					vel = this['_draw' + shape.type].apply(this, shape.args);
				existing[0].insertAdjacentHTML('afterEnd', vel);
			},

			removeShapeId: function (shapeid) {
				var existing = $('#jqsshape' + shapeid);
				this.group.removeChild(existing[0]);
			},

			getShapeAt: function (el, x, y) {
				var shapeid = el.id.substr(8);
				return shapeid;
			},

			render: function () {
				if (!this.rendered) {
					// batch the intial render into a single repaint
					this.group.innerHTML = this.prerender;
					this.rendered = true;
				}
			}
		});

	}))}(document, Math));