text: /**
  *
  * jquery.sparkline.js
  *
  * v@VERSION@
  * (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: 1.4,
                  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
      defaultStyles = '.jqstooltip { ' +
              'position: absolute;' +
              'left: 0px;' +
              'top: 0px;' +
              '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;' +
              'padding: 5px;' +
              'border: 1px solid white;' +
              'z-index: 10000;' +
              '}' +
              '.jqsfield { ' +
              'color: white;' +
              '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));
  