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/**
 
 *
 
 * jquery.sparkline.js
 
 *
 
 * v2.3.2
 
 * (c) Splunk, Inc
 
 * Contact: Gareth Watts ([email protected])
 
 * 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 the 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 tagOptionsPrefix)
 
 *
 
 * 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
 
 *   tagOptionsPrefix - 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;' +
                'box-sizing: content-box;' +
                '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, iefail;

            if (document.createStyleSheet) {

                try {

                    document.createStyleSheet().cssText = css;

                    return;

                } catch (e) {

                    // IE <= 9 maxes out at 31 stylesheets; inject into page instead.

                    iefail = true;

                }

            }

            tag = document.createElement('style');

            tag.type = 'text/css';

            document.getElementsByTagName('head')[0].appendChild(tag);

            if (iefail) {

                document.styleSheets[document.styleSheets.length - 1].cssText = css;

            } else {

                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));