jqplot.core.js

/*jslint browser: true, plusplus: true, nomen: true, white: false, continue: true */
/*global jQuery, console, jqPlot */

/**
 * Title: jqPlot Charts
 *
 * Pure JavaScript plotting plugin for jQuery.
 *
 * About: Version
 *
 * version: @VERSION
 * revision: @REVISION
 *
 * About: Copyright & License
 *
 * Copyright (c) 2009-2013 Chris Leonello
 * jqPlot is currently available for use in all personal or commercial projects
 * under both the MIT and GPL version 2.0 licenses. This means that you can
 * choose the license that best suits your project and use it accordingly.
 *
 * See <GPL Version 2> and <MIT License> contained within this distribution for further information.
 *
 * The author would appreciate an email letting him know of any substantial
 * use of jqPlot.  You can reach the author at: chris at jqplot dot com
 * or see http://www.jqplot.com/info.php.  This is, of course, not required.
 *
 * If you are feeling kind and generous, consider supporting the project by
 * making a donation at: http://www.jqplot.com/donate.php.
 *
 * sprintf functions contained in jqplot.sprintf.js by Ash Searle:
 *
 *     version 2007.04.27
 *     author Ash Searle
 *     http://hexmen.com/blog/2007/03/printf-sprintf/
 *     http://hexmen.com/js/sprintf.js
 *     The author (Ash Searle) has placed this code in the public domain:
 *     "This code is unrestricted: you are free to use it however you like."
 *
 *
 * About: Introduction
 *
 * jqPlot requires jQuery (1.4+ required for certain features). jQuery 1.4.2 is included in the distribution.
 * To use jqPlot include jQuery, the jqPlot jQuery plugin, the jqPlot css file and optionally
 * the excanvas script for IE support in your web page:
 *
 * > <!--[if lt IE 9]><script language="javascript" type="text/javascript" src="excanvas.js"></script><![endif]-->
 * > <script language="javascript" type="text/javascript" src="jquery-1.4.4.min.js"></script>
 * > <script language="javascript" type="text/javascript" src="jquery.jqplot.min.js"></script>
 * > <link rel="stylesheet" type="text/css" href="jquery.jqplot.css" />
 *
 * jqPlot can be customized by overriding the defaults of any of the objects which make
 * up the plot. The general usage of jqplot is:
 *
 * > chart = $.jqplot('targetElemId', [dataArray,...], {optionsObject});
 *
 * The options available to jqplot are detailed in <jqPlot Options> in the jqPlotOptions.txt file.
 *
 * An actual call to $.jqplot() may look like the
 * examples below:
 *
 * > chart = $.jqplot('chartdiv',  [[[1, 2],[3,5.12],[5,13.1],[7,33.6],[9,85.9],[11,219.9]]]);
 *
 * or
 *
 * > dataArray = [34,12,43,55,77];
 * > chart = $.jqplot('targetElemId', [dataArray, ...], {title:'My Plot', axes:{yaxis:{min:20, max:100}}});
 *
 * For more inforrmation, see <jqPlot Usage>.
 *
 * About: Usage
 *
 * See <jqPlot Usage>
 *
 * About: Available Options
 *
 * See <jqPlot Options> for a list of options available thorugh the options object (not complete yet!)
 *
 * About: Options Usage
 *
 * See <Options Tutorial>
 *
 * About: Changes
 *
 * See <Change Log>
 *
 */

(function ($, window) {

    "use strict";

    var _axisNames = ['yMidAxis', 'xaxis', 'yaxis', 'x2axis', 'y2axis', 'y3axis', 'y4axis', 'y5axis', 'y6axis', 'y7axis', 'y8axis', 'y9axis'],

        /**
         * Sorts the series data in increasing order.
         * @param {array} series
         */
        sortData = function (series) {

            var d, sd, pd, ppd, ret,
                i,
                j,
                l = series.length,
                check,
                bat,
                n,
                dlen,
                /**
                 *
                 */
                simplesort1 = function (a, b) {
                    return a[1] - b[1];
                },
                /**
                 *
                 */
                simplesort0 = function (a, b) {
                    return a[0] - b[0];
                };

            for (i = 0; i < l; i++) {
                bat = [series[i].data, series[i]._stackData, series[i]._plotData, series[i]._prevPlotData];
                for (n = 0; n < 4; n++) {
                    check = true;
                    d = bat[n];
                    if (series[i]._stackAxis === 'x') {
                        for (j = 0, dlen = d.length; j < dlen; j++) {
                            if (typeof (d[j][1]) !== "number") {
                                check = false;
                                break;
                            }
                        }
                        if (check) {
                            d.sort(simplesort1);
                        }
                    } else {
                        for (j = 0, dlen = d.length; j < dlen; j++) {
                            if (typeof (d[j][0]) !== "number") {
                                check = false;
                                break;
                            }
                        }
                        if (check) {
                            d.sort(simplesort0);
                        }
                    }
                }

            }

        },

        /**
         * @param {object} ev
         * @return {object}
         */
        getEventPosition = function (ev) {

            var plot = ev.data.plot,
                go = plot.eventCanvas._elem.offset(),
                gridPos = {x: ev.pageX - go.left, y: ev.pageY - go.top},
                dataPos = {xaxis: null, yaxis: null, x2axis: null, y2axis: null, y3axis: null, y4axis: null, y5axis: null, y6axis: null, y7axis: null, y8axis: null, y9axis: null, yMidAxis: null},
                an = ['xaxis', 'yaxis', 'x2axis', 'y2axis', 'y3axis', 'y4axis', 'y5axis', 'y6axis', 'y7axis', 'y8axis', 'y9axis', 'yMidAxis'],
                ax = plot.axes,
                n,
                axis;

            for (n = 11; n > 0; n--) {
                axis = an[n - 1];
                if (ax[axis].show) {
                    dataPos[axis] = ax[axis].series_p2u(gridPos[axis.charAt(0)]);
                }
            }

            return {
                offsets: go,
                gridPos: gridPos,
                dataPos: dataPos
            };

        },

        /**
        * Checks if event location is over a area.
        * @param {object} gridpos
        * @param {object} plot
-       */
        checkIntersection = function (gridpos, plot) {

            var series = plot.series,
                i,
                j,
                k,
                s,
                hp,
                output = null,

                /**
                 * @param {object} gridpos
                 * @param {object} s
                 * @returns {object}
                 */
                rendererBar = function (gridpos, s) {

                    var j,
                        l,
                        x = gridpos.x,
                        y = gridpos.y,
                        points,
                        p;

                    for (j = 0, l = s._barPoints.length; j < l; j++) {

                        points = s._barPoints[j];
                        p = s.gridData[j];

                        if (x > points[0][0] && x < points[2][0] && y > points[2][1] && y < points[0][1]) {
                            return {
                                seriesIndex: s.index,
                                pointIndex: j,
                                gridData: p,
                                data: s.data[j],
                                points: s._barPoints[j]
                            };
                        }
                    }

                },

                /**
                 * @param {object} gridpos
                 * @param {object} s
                 * @returns {object}
                 */
                rendererPyramid = function (gridpos, s) {

                    var j,
                        l,
                        x = gridpos.x,
                        y = gridpos.y,
                        points,
                        p,
                        hp = s._highlightThreshold;

                    for (j = 0, l = s._barPoints.length; j < l; j++) {

                        points = s._barPoints[j];
                        p = s.gridData[j];

                        if (x > points[0][0] + hp[0][0] && x < points[2][0] + hp[2][0] && y > points[2][1] && y < points[0][1]) {
                            return {
                                seriesIndex: s.index,
                                pointIndex: j,
                                gridData: p,
                                data: s.data[j],
                                points: s._barPoints[j]
                            };
                        }
                    }

                },

                /**
                 * @param {object} gridpos grid position
                 * @param {object} s slice
                 * @returns {object}
                 */
                rendererDonut = function (gridpos, s) {

                    var sa,
                        x,
                        y,
                        r,
                        theta,
                        sm,
                        minang,
                        maxang,
                        j,
                        l;

                    sa = s.startAngle / 180 * Math.PI;
                    x = gridpos.x - s._center[0];
                    y = gridpos.y - s._center[1];
                    r = Math.sqrt(Math.pow(x, 2) + Math.pow(y, 2));

                    if (x > 0 && -y >= 0) {
                        theta = 2 * Math.PI - Math.atan(-y / x);
                    } else if (x > 0 && -y < 0) {
                        theta = -Math.atan(-y / x);
                    } else if (x < 0) {
                        theta = Math.PI - Math.atan(-y / x);
                    } else if (x === 0 && -y > 0) {
                        theta = 3 * Math.PI / 2;
                    } else if (x === 0 && -y < 0) {
                        theta = Math.PI / 2;
                    } else if (x === 0 && y === 0) {
                        theta = 0;
                    }
                    if (sa) {
                        theta -= sa;
                        if (theta < 0) {
                            theta += 2 * Math.PI;
                        } else if (theta > 2 * Math.PI) {
                            theta -= 2 * Math.PI;
                        }
                    }

                    sm = s.sliceMargin / 180 * Math.PI;

                    if (r < s._radius && r > s._innerRadius) {
                        for (j = 0, l = s.gridData.length; j < l; j++) {
                            minang = (j > 0) ? s.gridData[j - 1][1] + sm : sm;
                            maxang = s.gridData[j][1];
                            
                            if (theta > minang && theta < maxang) {
                                return {
                                    seriesIndex: s.index,
                                    pointIndex: j,
                                    gridData: [gridpos.x, gridpos.y],
                                    data: s.data[j]
                                };
                            }
                        }
                    }
                },

                /**
                 * @param {object} gridpos
                 * @param {object} s
                 * @returns {object}
                 */
                rendererPie = function (gridpos, s) {

                    var sa,
                        x,
                        y,
                        r,
                        theta,
                        sm,
                        minang,
                        maxang,
                        j,
                        l;

                    sa = s.startAngle / 180 * Math.PI;
                    x = gridpos.x - s._center[0];
                    y = gridpos.y - s._center[1];
                    r = Math.sqrt(Math.pow(x, 2) + Math.pow(y, 2));

                    if (x > 0 && -y >= 0) {
                        theta = 2 * Math.PI - Math.atan(-y / x);
                    } else if (x > 0 && -y < 0) {
                        theta = -Math.atan(-y / x);
                    } else if (x < 0) {
                        theta = Math.PI - Math.atan(-y / x);
                    } else if (x === 0 && -y > 0) {
                        theta = 3 * Math.PI / 2;
                    } else if (x === 0 && -y < 0) {
                        theta = Math.PI / 2;
                    } else if (x === 0 && y === 0) {
                        theta = 0;
                    }

                    if (sa) {
                        theta -= sa;
                        if (theta < 0) {
                            theta += 2 * Math.PI;
                        } else if (theta > 2 * Math.PI) {
                            theta -= 2 * Math.PI;
                        }
                    }

                    sm = s.sliceMargin / 180 * Math.PI;

                    if (r < s._radius) {
                        for (j = 0, l = s.gridData.length; j < l; j++) {
                            minang = (j > 0) ? s.gridData[j - 1][1] + sm : sm;
                            maxang = s.gridData[j][1];
                            if (theta > minang && theta < maxang) {
                                return {
                                    seriesIndex: s.index,
                                    pointIndex: j,
                                    gridData: [gridpos.x, gridpos.y],
                                    data: s.data[j]
                                };
                            }
                        }
                    }

                },

                /**
                 * @param {object} gridpos
                 * @param {object} s
                 * @returns {object}
                 */
                rendererBubble = function (gridpos, s) {

                    var x,
                        y,
                        ret = null,
                        p,
                        d,
                        d0,
                        j,
                        l;

                    x = gridpos.x;
                    y = gridpos.y;

                    if (s.show) {
                        for (j = 0, l = s.gridData.length; j < l; j++) {
                            p = s.gridData[j];
                            d = Math.sqrt((x - p[0]) * (x - p[0]) + (y - p[1]) * (y - p[1]));
                            if (d <= p[2] && (d <= d0 || d0 === null)) {
                                d0 = d;
                                ret = {
                                    seriesIndex: i,
                                    pointIndex: j,
                                    gridData: p,
                                    data: s.data[j]
                                };
                            }
                        }
                        if (ret !== null) {
                            return ret;
                        }
                    }

                },

                /**
                 * @param {object} gridpos
                 * @param {object} s
                 * @returns {object}
                 */
                rendererDefault = function (gridpos, s) {

                    var x,
                        y,
                        r,
                        t,
                        threshold,
                        j,
                        l,
                        p,
                        yp,
                        d,
                        d0;

                    x = gridpos.x;
                    y = gridpos.y;
                    r = s.renderer;

                    if (s.show) {
                        t = s.markerRenderer.size / 2 + s.neighborThreshold;
                        threshold = (t > 0) ? t : 0;
                        for (j = 0, l = s.gridData.length; j < s.gridData.length; j++) {
                            p = s.gridData[j];
                            // neighbor looks different to OHLC chart.
                            if (r.constructor === $.jqplot.OHLCRenderer) {
                                if (r.candleStick) {
                                    yp = s._yaxis.series_u2p;
                                    if (x >= p[0] - r._bodyWidth / 2 && x <= p[0] + r._bodyWidth / 2 && y >= yp(s.data[j][2]) && y <= yp(s.data[j][3])) {
                                        return {
                                            seriesIndex: i,
                                            pointIndex: j,
                                            gridData: p,
                                            data: s.data[j]
                                        };
                                    }
                                // if an open hi low close chart
                                } else if (!r.hlc) {
                                    yp = s._yaxis.series_u2p;
                                    if (x >= p[0] - r._tickLength && x <= p[0] + r._tickLength && y >= yp(s.data[j][2]) && y <= yp(s.data[j][3])) {
                                        return {
                                            seriesIndex: i,
                                            pointIndex: j,
                                            gridData: p,
                                            data: s.data[j]
                                        };
                                    }
                                // a hi low close chart
                                } else {
                                    yp = s._yaxis.series_u2p;
                                    if (x >= p[0] - r._tickLength && x <= p[0] + r._tickLength && y >= yp(s.data[j][1]) && y <= yp(s.data[j][2])) {
                                        return {
                                            seriesIndex: i,
                                            pointIndex: j,
                                            gridData: p,
                                            data: s.data[j]
                                        };
                                    }
                                }

                            } else {
                                d = Math.sqrt((x - p[0]) * (x - p[0]) + (y - p[1]) * (y - p[1]));
                                if (d <= threshold && (d <= d0 || d0 === null)) {
                                    d0 = d;
                                    return {
                                        seriesIndex: i,
                                        pointIndex: j,
                                        gridData: p,
                                        data: s.data[j]
                                    };
                                }
                            }
                        }
                    }

                },

                /**
                 * @param {object} gridpos
                 * @param {object} s
                 * @returns {object}
                 */
                rendererFunnel = function (gridpos, s) {

                    var x = gridpos.x,
                        y = gridpos.y,
                        v = s._vertices,
                        vfirst = v[0],
                        vlast = v[v.length - 1],
                        lex,
                        rex,
                        cv,
                        j,
                        l,
                        /**
                         *  Equations of right and left sides, returns x, y values given height of section (y value and 2 points)
                         */
                        findedge = function (l, p1, p2) {
                            var m = (p1[1] - p2[1]) / (p1[0] - p2[0]),
                                b = p1[1] - m * p1[0],
                                y = l + p1[1];
                            return [(y - b) / m, y];
                        };

                    // check each section
                    lex = findedge(y, vfirst[0], vlast[3]);
                    rex = findedge(y, vfirst[1], vlast[2]);

                    for (j = 0, l = v.length; j < l; j++) {
                        cv = v[j];
                        if (y >= cv[0][1] && y <= cv[3][1] && x >= lex[0] && x <= rex[0]) {
                            return {
                                seriesIndex: s.index,
                                pointIndex: j,
                                gridData: null,
                                data: s.data[j]
                            };
                        }
                    }

                },

                /**
                 * @param {object} gridpos
                 * @param {object} s
                 * @returns {object}
                 */
                rendererLine = function (gridpos, s) {

                    var x,
                        y,
                        r,
                        threshold,
                        t,
                        j,
                        l,
                        p,
                        d,
                        d0,
                        yp,
                        inside = false,
                        numPoints,
                        ii,
                        vertex1,
                        vertex2;

                    x = gridpos.x;
                    y = gridpos.y;
                    r = s.renderer;

                    if (s.show) {

                        if ((s.fill || (s.renderer.bands.show && s.renderer.bands.fill)) && (!plot.plugins.highlighter || !plot.plugins.highlighter.show)) {

                            // first check if it is in bounding box
                            inside = false;

                            if (x > s._boundingBox[0][0] && x < s._boundingBox[1][0] && y > s._boundingBox[1][1] && y < s._boundingBox[0][1]) {
                                // now check the crossing number

                                numPoints = s._areaPoints.length;
                                j = numPoints - 1;

                                for (ii = 0; ii < numPoints; ii++) {

                                    vertex1 = [s._areaPoints[ii][0], s._areaPoints[ii][1]];
                                    vertex2 = [s._areaPoints[j][0], s._areaPoints[j][1]];

                                    if ((vertex1[1] < y && vertex2[1] >= y) || (vertex2[1] < y && vertex1[1] >= y)) {
                                        if (vertex1[0] + (y - vertex1[1]) / (vertex2[1] - vertex1[1]) * (vertex2[0] - vertex1[0]) < x) {
                                            inside = !inside;
                                        }
                                    }

                                    j = ii;
                                }

                            }

                            if (inside) {
                                return {
                                    seriesIndex: i,
                                    pointIndex: null,
                                    gridData: s.gridData,
                                    data: s.data,
                                    points: s._areaPoints
                                };
                            }

                        } else {

                            t = s.markerRenderer.size / 2 + s.neighborThreshold;
                            threshold = (t > 0) ? t : 0;

                            for (j = 0, l = s.gridData.length; j < l; j++) {

                                p = s.gridData[j];
                                // neighbor looks different to OHLC chart.

                                if (r.constructor === $.jqplot.OHLCRenderer) {
                                    if (r.candleStick) {
                                        yp = s._yaxis.series_u2p;
                                        if (x >= p[0] - r._bodyWidth / 2 && x <= p[0] + r._bodyWidth / 2 && y >= yp(s.data[j][2]) && y <= yp(s.data[j][3])) {
                                            return {
                                                seriesIndex: i,
                                                pointIndex: j,
                                                gridData: p,
                                                data: s.data[j]
                                            };
                                        }
                                    // if an open hi low close chart
                                    } else if (!r.hlc) {
                                        yp = s._yaxis.series_u2p;
                                        if (x >= p[0] - r._tickLength && x <= p[0] + r._tickLength && y >= yp(s.data[j][2]) && y <= yp(s.data[j][3])) {
                                            return {
                                                seriesIndex: i,
                                                pointIndex: j,
                                                gridData: p,
                                                data: s.data[j]
                                            };
                                        }
                                    // a hi low close chart
                                    } else {
                                        yp = s._yaxis.series_u2p;
                                        if (x >= p[0] - r._tickLength && x <= p[0] + r._tickLength && y >= yp(s.data[j][1]) && y <= yp(s.data[j][2])) {
                                            return {
                                                seriesIndex: i,
                                                pointIndex: j,
                                                gridData: p,
                                                data: s.data[j]
                                            };
                                        }
                                    }

                                } else if (p[0] !== null && p[1] !== null) {
                                    d = Math.sqrt((x - p[0]) * (x - p[0]) + (y - p[1]) * (y - p[1]));
                                    if (d <= threshold && (d <= d0 || typeof d0 === "undefined")) {
                                        d0 = d;
                                        return {
                                            seriesIndex: i,
                                            pointIndex: j,
                                            gridData: p,
                                            data: s.data[j]
                                        };
                                    }
                                }
                            }
                        }
                    }

                };

            for (k = plot.seriesStack.length - 1; k >= 0; k--) {

                i = plot.seriesStack[k];
                s = series[i];

                switch (s.renderer.constructor) {

                case $.jqplot.BarRenderer:
                    output = rendererBar(gridpos, s);
                    break;
                case $.jqplot.PyramidRenderer:
                    output = rendererPyramid(gridpos, s);
                    break;
                case $.jqplot.DonutRenderer:
                    output = rendererDonut(gridpos, s);
                    break;
                case $.jqplot.PieRenderer:
                    output = rendererPie(gridpos, s);
                    break;
                case $.jqplot.BubbleRenderer:
                    output = rendererBubble(gridpos, s);
                    break;
                case $.jqplot.FunnelRenderer:
                    output = rendererFunnel(gridpos, s);
                    break;
                case $.jqplot.LineRenderer:
                    output = rendererLine(gridpos, s);
                    break;
                default:
                    output = rendererDefault(gridpos, s);
                    break;

                }

                if (output && output !== null){
                    return output;
                }
            }

            return output;

        };

    /**
     *
     */
    $.fn.emptyForce = function () {

        var i,
            elem;

        for (i = 0, elem; typeof (elem = $(this)[i]) !== "undefined"; i++) {

            // Remove element nodes and prevent memory leaks
            if (elem.nodeType === 1) {
                $.cleanData(elem.getElementsByTagName("*"));
            }

            // Remove any remaining nodes
            if ($.jqplot.use_excanvas) {
                elem.outerHTML = "";
            } else {
                while (elem.firstChild) {
                    elem.removeChild(elem.firstChild);
                }
            }

            elem = null;
        }

        return $(this);
    };

    /**
     * @param {object} parent
     */
    $.fn.removeChildForce = function (parent) {
        while (parent.firstChild) {
            this.removeChildForce(parent.firstChild);
            parent.removeChild(parent.firstChild);
        }
    };

    /**
     *
     */
    $.fn.jqplot = function () {

        var datas = [],
            options = [],
            i,
            l;

        // see how many data arrays we have
        for (i = 0, l = arguments.length; i < l; i++) {
            if ($.isArray(arguments[i])) {
                datas.push(arguments[i]);
            } else if ($.isPlainObject(arguments[i])) {
                options.push(arguments[i]);
            }
        }

        return this.each(function (index) {
            var tid,
                plot,
                $this = $(this),
                dl = datas.length,
                ol = options.length,
                data,
                opts;

            if (index < dl) {
                data = datas[index];
            } else {
                data = dl ? datas[dl - 1] : null;
            }

            if (index < ol) {
                opts = options[index];
            } else {
                opts = ol ? options[ol - 1] : null;
            }

            // does el have an id?
            // if not assign it one.
            tid = $this.attr('id');

            if (typeof tid === "undefined") {
                tid = 'jqplot_target_' + $.jqplot.targetCounter++;
                $this.attr('id', tid);
            }

            plot = $.jqplot(tid, data, opts);

            $this.data('jqplot', plot);

        });
    };

    $.fn.checkIntersection = checkIntersection;

    /**
     * Namespace: $.jqplot
     * jQuery function called by the user to create a plot.
     *
     * Parameters:
     * target - ID of target element to render the plot into.
     * data - an array of data series.
     * options - user defined options object.  See the individual classes for available options.
     *
     * Properties:
     * config - object to hold configuration information for jqPlot plot object.
     *
     * attributes:
     * enablePlugins - False to disable plugins by default.  Plugins must then be explicitly
     *   enabled in the individual plot options.  Default: false.
     *   This property sets the "show" property of certain plugins to true or false.
     *   Only plugins that can be immediately active upon loading are affected.  This includes
     *   non-renderer plugins like cursor, dragable, highlighter, and trendline.
     * defaultHeight - Default height for plots where no css height specification exists.  This
     *   is a jqplot wide default.
     * defaultWidth - Default height for plots where no css height specification exists.  This
     *   is a jqplot wide default.
     *
     * @namespace $.jqplot
     */
    $.jqplot = function (target, data, options) {

        var _data = null,
            _options = null,
            plot,
            msg;

        if (arguments.length === 3) {
            _data = data;
            _options = options;
        } else if (arguments.length === 2) {
            if ($.isArray(data)) {
                _data = data;
            } else if ($.isPlainObject(data)) {
                _options = data;
            }
        }

        if (_data === null && _options !== null && _options.data) {
            _data = _options.data;
        }

        // @TODO Need to make sure we don't run into circular references...
        plot = new JqPlot();

        // remove any error class that may be stuck on target.
        $('#' + target).removeClass('jqplot-error');

        if ($.jqplot.config.catchErrors) {
            try {
                plot.init(target, _data, _options);
                plot.draw();
                plot.themeEngine.init.call(plot);
                return plot;
            } catch (e) {
                msg = $.jqplot.config.errorMessage || e.message;
                $('#' + target)
                    .append('<div class="jqplot-error-message">' + msg + '</div>')
                    .addClass('jqplot-error')
                    .css({
                        background: $.jqplot.config.errorBackground,
                        border: $.jqplot.config.errorBorder,
                        fontFamily: $.jqplot.config.errorFontFamily,
                        fontSize: $.jqplot.config.errorFontSize,
                        fontStyle: $.jqplot.config.errorFontStyle,
                        fontWeight: $.jqplot.config.errorFontWeight
                    });
            }
        } else {
            plot.init(target, _data, _options);
            plot.draw();
            plot.themeEngine.init.call(plot);
            return plot;
        }
    };

    $.jqplot.version = "@VERSION";
    $.jqplot.revision = "@REVISION";

    $.jqplot.targetCounter = 1;

    // canvas manager to reuse canvases on the plot.
    // Should help solve problem of canvases not being freed and
    // problem of waiting forever for firefox to decide to free memory.
    /**
    * @class
    */
    $.jqplot.CanvasManager = function () {
        // canvases are managed globally so that they can be reused
        // across plots after they have been freed
        if (typeof $.jqplot.CanvasManager.canvases === 'undefined') {
            $.jqplot.CanvasManager.canvases = [];
            $.jqplot.CanvasManager.free = [];
        }

        var myCanvases = [];

        this.getCanvas = function () {
            var canvas,
                makeNew = true,
                i,
                l;

            if (!$.jqplot.use_excanvas) {
                for (i = 0, l = $.jqplot.CanvasManager.canvases.length; i < l; i++) {
                    if ($.jqplot.CanvasManager.free[i] === true) {
                        makeNew = false;
                        canvas = $.jqplot.CanvasManager.canvases[i];
                        // $(canvas).removeClass('jqplot-canvasManager-free').addClass('jqplot-canvasManager-inuse');
                        $.jqplot.CanvasManager.free[i] = false;
                        myCanvases.push(i);
                        break;
                    }
                }
            }

            if (makeNew) {
                canvas = document.createElement('canvas');
                myCanvases.push($.jqplot.CanvasManager.canvases.length);
                $.jqplot.CanvasManager.canvases.push(canvas);
                $.jqplot.CanvasManager.free.push(false);
            }

            return canvas;
        };

        // this method has to be used after settings the dimesions
        // on the element returned by getCanvas()
        this.initCanvas = function (canvas) {
            if ($.jqplot.use_excanvas) {
                return window.G_vmlCanvasManager.initElement(canvas);
            }
            return canvas;
        };

        this.freeAllCanvases = function () {
            var i, l;
            for (i = 0, l = myCanvases.length; i < l; i++) {
                this.freeCanvas(myCanvases[i]);
            }
            myCanvases = [];
        };

        this.freeCanvas = function (idx) {
            if ($.jqplot.use_excanvas && typeof window.G_vmlCanvasManager.uninitElement !== "undefined") {
                // excanvas can't be reused, but properly unset
                window.G_vmlCanvasManager.uninitElement($.jqplot.CanvasManager.canvases[idx]);
                $.jqplot.CanvasManager.canvases[idx] = null;
            } else {
                var canvas = $.jqplot.CanvasManager.canvases[idx];
                canvas.getContext('2d').clearRect(0, 0, canvas.width, canvas.height);
                $(canvas).unbind().removeAttr('class').removeAttr('style');
                // Style attributes seemed to be still hanging around.  wierd.  Some ticks
                // still retained a left: 0px attribute after reusing a canvas.
                $(canvas).css({left: '', top: '', position: ''});
                // setting size to 0 may save memory of unused canvases?
                canvas.width = 0;
                canvas.height = 0;
                $.jqplot.CanvasManager.free[idx] = true;
            }
        };

    };

    /**
    * Convienence function that won't hang IE or FF without FireBug.
    */
    $.jqplot.log = function () {
        if (window.console) {
            window.console.log.apply(window.console, arguments);
        }
    };

    /**
     * Settings and configuration
     */
    $.jqplot.config = {
        addDomReference: false,
        enablePlugins: false,
        defaultHeight: 300,
        defaultWidth: 400,
        UTCAdjust: false,
        timezoneOffset: new Date(new Date().getTimezoneOffset() * 60000),
        errorMessage: '',
        errorBackground: '',
        errorBorder: '',
        errorFontFamily: '',
        errorFontSize: '',
        errorFontStyle: '',
        errorFontWeight: '',
        catchErrors: true,      // debug mode
        defaultTickFormatString: "%.1f",
        defaultColors: [ "#4bb2c5", "#EAA228", "#c5b47f", "#579575", "#839557", "#958c12", "#953579", "#4b5de4", "#d8b83f", "#ff5800", "#0085cc", "#c747a3", "#cddf54", "#FBD178", "#26B4E3", "#bd70c7"],
        defaultNegativeColors: [ "#498991", "#C08840", "#9F9274", "#546D61", "#646C4A", "#6F6621", "#6E3F5F", "#4F64B0", "#A89050", "#C45923", "#187399", "#945381", "#959E5C", "#C7AF7B", "#478396", "#907294"],
        dashLength: 4,
        gapLength: 4,
        dotGapLength: 2.5,
        srcLocation: 'jqplot/src/',
        pluginLocation: 'jqplot/src/plugins/'
    };

    $.jqplot.arrayMax = function (array) {
        return Math.max.apply(Math, array);
    };

    $.jqplot.arrayMin = function (array) {
        return Math.min.apply(Math, array);
    };

    $.jqplot.enablePlugins = $.jqplot.config.enablePlugins;

    /**
     * canvas related tests taken from modernizer:
     * Copyright (c) 2009 - 2010 Faruk Ates.
     * http://www.modernizr.com
     */
    $.jqplot.support_canvas = function () {
        if (typeof $.jqplot.support_canvas.result === 'undefined') {
            $.jqplot.support_canvas.result = !!document.createElement('canvas').getContext;
        }
        return $.jqplot.support_canvas.result;
    };

    /**
     * canvas related tests taken from modernizer:
     * Copyright (c) 2009 - 2010 Faruk Ates.
     * http://www.modernizr.com
     */
    $.jqplot.support_canvas_text = function () {
        if (typeof $.jqplot.support_canvas_text.result === 'undefined') {
            if (window.G_vmlCanvasManager && window.G_vmlCanvasManager._version > 887) {
                $.jqplot.support_canvas_text.result = true;
            } else {
                $.jqplot.support_canvas_text.result = !!(document.createElement('canvas').getContext && typeof document.createElement('canvas').getContext('2d').fillText === 'function');
            }

        }
        return $.jqplot.support_canvas_text.result;
    };

    $.jqplot.use_excanvas = ((!$.support.boxModel || !$.support.objectAll || !$.support.leadingWhitespace) && !$.jqplot.support_canvas()) ? true : false;

    /**
     *
     * Hooks: jqPlot Pugin Hooks
     *
     * $.jqplot.preInitHooks - called before initialization.
     * $.jqplot.postInitHooks - called after initialization.
     * $.jqplot.preParseOptionsHooks - called before user options are parsed.
     * $.jqplot.postParseOptionsHooks - called after user options are parsed.
     * $.jqplot.preDrawHooks - called before plot draw.
     * $.jqplot.postDrawHooks - called after plot draw.
     * $.jqplot.preDrawSeriesHooks - called before each series is drawn.
     * $.jqplot.postDrawSeriesHooks - called after each series is drawn.
     * $.jqplot.preDrawLegendHooks - called before the legend is drawn.
     * $.jqplot.addLegendRowHooks - called at the end of legend draw, so plugins
     *     can add rows to the legend table.
     * $.jqplot.preSeriesInitHooks - called before series is initialized.
     * $.jqplot.postSeriesInitHooks - called after series is initialized.
     * $.jqplot.preParseSeriesOptionsHooks - called before series related options
     *     are parsed.
     * $.jqplot.postParseSeriesOptionsHooks - called after series related options
     *     are parsed.
     * $.jqplot.eventListenerHooks - called at the end of plot drawing, binds
     *     listeners to the event canvas which lays on top of the grid area.
     * $.jqplot.preDrawAllSeriesHooks - called before the first serie drawn and after grid drawn.
     * $.jqplot.preDrawSeriesShadowHooks - called before series shadows are drawn.
     * $.jqplot.postDrawSeriesShadowHooks - called after series shadows are drawn.
     *
     */

    $.jqplot.preInitHooks = [];
    $.jqplot.postInitHooks = [];
    $.jqplot.preParseOptionsHooks = [];
    $.jqplot.postParseOptionsHooks = [];
    $.jqplot.preDrawHooks = [];
    $.jqplot.postDrawHooks = [];
    $.jqplot.preDrawSeriesHooks = [];
    $.jqplot.postDrawSeriesHooks = [];
    $.jqplot.preDrawLegendHooks = [];
    $.jqplot.addLegendRowHooks = [];
    $.jqplot.preSeriesInitHooks = [];
    $.jqplot.postSeriesInitHooks = [];
    $.jqplot.preParseSeriesOptionsHooks = [];
    $.jqplot.postParseSeriesOptionsHooks = [];
    $.jqplot.eventListenerHooks = [];
    $.jqplot.preDrawSeriesShadowHooks = [];
    $.jqplot.preDrawAllSeriesHooks = [];
    $.jqplot.postDrawSeriesShadowHooks = [];

    // A superclass holding some common properties and methods.
    $.jqplot.ElemContainer = function () {
        this._elem = null;
        this._plotWidth = 0;
        this._plotHeight = 0;
        this._plotDimensions = {height: null, width: null};
    };

    $.jqplot.ElemContainer.prototype.createElement = function (el, offsets, clss, cssopts, attrib) {
        this._offsets = offsets;
        var klass = clss || 'jqplot',
            elem = document.createElement(el);
        this._elem = $(elem);
        this._elem.addClass(klass);
        this._elem.css(cssopts);
        this._elem.attr(attrib);
        // avoid memory leak;
        elem = null;
        return this._elem;
    };

    $.jqplot.ElemContainer.prototype.getWidth = function () {
        if (this._elem) {
            return this._elem.outerWidth(true);
        } else {
            return null;
        }
    };

    $.jqplot.ElemContainer.prototype.getHeight = function () {
        if (this._elem) {
            return this._elem.outerHeight(true);
        } else {
            return null;
        }
    };

    $.jqplot.ElemContainer.prototype.getPosition = function () {
        if (this._elem) {
            return this._elem.position();
        } else {
            return {top: null, left: null, bottom: null, right: null};
        }
    };

    $.jqplot.ElemContainer.prototype.getTop = function () {
        return this.getPosition().top;
    };

    $.jqplot.ElemContainer.prototype.getLeft = function () {
        return this.getPosition().left;
    };

    $.jqplot.ElemContainer.prototype.getBottom = function () {
        return this._elem.css('bottom');
    };

    $.jqplot.ElemContainer.prototype.getRight = function () {
        return this._elem.css('right');
    };


    /**
     * @memberof $.jqplot
     * @class
     * Class: Axis
     * An individual axis object.  Cannot be instantiated directly, but created
     * by the Plot object.  Axis properties can be set or overridden by the
     * options passed in from the user.
     *
     */
    function Axis(name) {
        $.jqplot.ElemContainer.call(this);
        // Group: Properties
        //
        // Axes options are specified within an axes object at the top level of the
        // plot options like so:
        // > {
        // >    axes: {
        // >        xaxis: {min: 5},
        // >        yaxis: {min: 2, max: 8, numberTicks:4},
        // >        x2axis: {pad: 1.5},
        // >        y2axis: {ticks:[22, 44, 66, 88]}
        // >        }
        // > }
        // There are 2 x axes, 'xaxis' and 'x2axis', and
        // 9 yaxes, 'yaxis', 'y2axis'. 'y3axis', ...  Any or all of which may be specified.
        this.name = name;
        this._series = [];
        // prop: show
        // Wether to display the axis on the graph.
        this.show = false;
        // prop: tickRenderer
        // A class of a rendering engine for creating the ticks labels displayed on the plot,
        // See <$.jqplot.AxisTickRenderer>.
        this.tickRenderer = $.jqplot.AxisTickRenderer;
        // prop: tickOptions
        // Options that will be passed to the tickRenderer, see <$.jqplot.AxisTickRenderer> options.
        this.tickOptions = {};
        // prop: labelRenderer
        // A class of a rendering engine for creating an axis label.
        this.labelRenderer = $.jqplot.AxisLabelRenderer;
        // prop: labelOptions
        // Options passed to the label renderer.
        this.labelOptions = {};
        // prop: label
        // Label for the axis
        this.label = null;
        // prop: showLabel
        // true to show the axis label.
        this.showLabel = true;
        // prop: min
        // minimum value of the axis (in data units, not pixels).
        this.min = null;
        // prop: max
        // maximum value of the axis (in data units, not pixels).
        this.max = null;
        // prop: autoscale
        // DEPRECATED
        // the default scaling algorithm produces superior results.
        this.autoscale = false;
        // prop: pad
        // Padding to extend the range above and below the data bounds.
        // The data range is multiplied by this factor to determine minimum and maximum axis bounds.
        // A value of 0 will be interpreted to mean no padding, and pad will be set to 1.0.
        this.pad = 1.2;
        // prop: padMax
        // Padding to extend the range above data bounds.
        // The top of the data range is multiplied by this factor to determine maximum axis bounds.
        // A value of 0 will be interpreted to mean no padding, and padMax will be set to 1.0.
        this.padMax = null;
        // prop: padMin
        // Padding to extend the range below data bounds.
        // The bottom of the data range is multiplied by this factor to determine minimum axis bounds.
        // A value of 0 will be interpreted to mean no padding, and padMin will be set to 1.0.
        this.padMin = null;
        // prop: ticks
        // 1D [val, val, ...] or 2D [[val, label], [val, label], ...] array of ticks for the axis.
        // If no label is specified, the value is formatted into an appropriate label.
        this.ticks = [];
        // prop: numberTicks
        // Desired number of ticks.  Default is to compute automatically.
        this.numberTicks = null;
        // prop: tickInterval
        // number of units between ticks.  Mutually exclusive with numberTicks.
        this.tickInterval = null;
        // prop: renderer
        // A class of a rendering engine that handles tick generation,
        // scaling input data to pixel grid units and drawing the axis element.
        this.renderer = $.jqplot.LinearAxisRenderer;
        // prop: rendererOptions
        // renderer specific options.  See <$.jqplot.LinearAxisRenderer> for options.
        this.rendererOptions = {};
        // prop: showTicks
        // Wether to show the ticks (both marks and labels) or not.
        // Will not override showMark and showLabel options if specified on the ticks themselves.
        this.showTicks = true;
        // prop: showTickMarks
        // Wether to show the tick marks (line crossing grid) or not.
        // Overridden by showTicks and showMark option of tick itself.
        this.showTickMarks = true;
        // prop: showMinorTicks
        // Wether or not to show minor ticks.  This is renderer dependent.
        this.showMinorTicks = true;
        // prop: drawMajorGridlines
        // True to draw gridlines for major axis ticks.
        this.drawMajorGridlines = true;
        // prop: drawMinorGridlines
        // True to draw gridlines for minor ticks.
        this.drawMinorGridlines = false;
        // prop: drawMajorTickMarks
        // True to draw tick marks for major axis ticks.
        this.drawMajorTickMarks = true;
        // prop: drawMinorTickMarks
        // True to draw tick marks for minor ticks.  This is renderer dependent.
        this.drawMinorTickMarks = true;
        // prop: useSeriesColor
        // Use the color of the first series associated with this axis for the
        // tick marks and line bordering this axis.
        this.useSeriesColor = false;
        // prop: borderWidth
        // width of line stroked at the border of the axis.  Defaults
        // to the width of the grid boarder.
        this.borderWidth = null;
        // prop: borderColor
        // color of the border adjacent to the axis.  Defaults to grid border color.
        this.borderColor = null;
        // prop: scaleToHiddenSeries
        // True to include hidden series when computing axes bounds and scaling.
        this.scaleToHiddenSeries = false;
        // minimum and maximum values on the axis.
        this._dataBounds = {min: null, max: null};
        // statistics (min, max, mean) as well as actual data intervals for each series attached to axis.
        // holds collection of {intervals:[], min:, max:, mean: } objects for each series on axis.
        this._intervalStats = [];
        // pixel position from the top left of the min value and max value on the axis.
        this._offsets = {min: null, max: null};
        this._ticks = [];
        this._label = null;
        // prop: syncTicks
        // true to try and synchronize tick spacing across multiple axes so that ticks and
        // grid lines line up.  This has an impact on autoscaling algorithm, however.
        // In general, autoscaling an individual axis will work better if it does not
        // have to sync ticks.
        this.syncTicks = null;
        // prop: tickSpacing
        // Approximate pixel spacing between ticks on graph.  Used during autoscaling.
        // This number will be an upper bound, actual spacing will be less.
        this.tickSpacing = 75;
        // Properties to hold the original values for min, max, ticks, tickInterval and numberTicks
        // so they can be restored if altered by plugins.
        this._min = null;
        this._max = null;
        this._tickInterval = null;
        this._numberTicks = null;
        this.__ticks = null;
        // hold original user options.
        this._options = {};
    }

    Axis.prototype = new $.jqplot.ElemContainer();
    Axis.prototype.constructor = Axis;

    Axis.prototype.init = function () {
        if ($.isFunction(this.renderer)) {
            this.renderer = new this.renderer();
        }
        // set the axis name
        this.tickOptions.axis = this.name;
        // if showMark or showLabel tick options not specified, use value of axis option.
        // showTicks overrides showTickMarks.
        if (typeof this.tickOptions.showMark === "undefined") {
            this.tickOptions.showMark = this.showTicks;
        }
        if (typeof this.tickOptions.showTickMarks === "undefined") {
            this.tickOptions.showTickMarks = this.showTickMarks;
        }
        if (typeof this.tickOptions.showLabel === "undefined") {
            this.tickOptions.showLabel = this.showTicks;
        }

        if (typeof this.label === "undefined" || this.label === null || this.label === '') {
            this.showLabel = false;
        } else {
            this.labelOptions.label = this.label;
        }
        if (this.showLabel === false) {
            this.labelOptions.show = false;
        }
        // set the default padMax, padMin if not specified
        // special check, if no padding desired, padding
        // should be set to 1.0
        if (this.pad === 0) {
            this.pad = 1.0;
        }
        if (this.padMax === 0) {
            this.padMax = 1.0;
        }
        if (this.padMin === 0) {
            this.padMin = 1.0;
        }
        if (this.padMax === null) {
            this.padMax = (this.pad - 1) / 2 + 1;
        }
        if (this.padMin === null) {
            this.padMin = (this.pad - 1) / 2 + 1;
        }
        // now that padMin and padMax are correctly set, reset pad in case user has supplied
        // padMin and/or padMax
        this.pad = this.padMax + this.padMin - 1;
        if (this.min !== null || this.max !== null) {
            this.autoscale = false;
        }
        // if not set, sync ticks for y axes but not x by default.
        if (this.syncTicks === null && this.name.indexOf('y') > -1) {
            this.syncTicks = true;
        } else if (this.syncTicks === null) {
            this.syncTicks = false;
        }
        this.renderer.init.call(this, this.rendererOptions);

    };

    Axis.prototype.draw = function (ctx, plot) {
        // Memory Leaks patch
        if (this.__ticks) {
            this.__ticks = null;
        }

        return this.renderer.draw.call(this, ctx, plot);

    };

    Axis.prototype.set = function () {
        this.renderer.set.call(this);
    };

    Axis.prototype.pack = function (pos, offsets) {
        if (this.show) {
            this.renderer.pack.call(this, pos, offsets);
        }
        // these properties should all be available now.
        if (this._min === null) {
            this._min = this.min;
            this._max = this.max;
            this._tickInterval = this.tickInterval;
            this._numberTicks = this.numberTicks;
            this.__ticks = this._ticks;
        }
    };

    // reset the axis back to original values if it has been scaled, zoomed, etc.
    Axis.prototype.reset = function () {
        this.renderer.reset.call(this);
    };

    Axis.prototype.resetScale = function (opts) {
        $.extend(true, this, {min: null, max: null, numberTicks: null, tickInterval: null, _ticks: [], ticks: []}, opts);
        this.resetDataBounds();
    };

    Axis.prototype.resetDataBounds = function () {
        // Go through all the series attached to this axis and find
        // the min/max bounds for this axis.
        var db = this._dataBounds,
            l,
            s,
            d,
            // check for when to force min 0 on bar series plots.
            doforce = (this.show) ? true : false,
            i = 0,
            j = 0,
            minyidx,
            maxyidx;

        db.min = null;
        db.max = null;

        for (i = 0; i < this._series.length; i++) {
            s = this._series[i];
            if (s.show || this.scaleToHiddenSeries) {
                d = s._plotData;
                if (s._type === 'line' && s.renderer.bands.show && this.name.charAt(0) !== 'x') {
                    d = [[0, s.renderer.bands._min], [1, s.renderer.bands._max]];
                }

                minyidx = 1;
                maxyidx = 1;

                if (s._type !== null && s._type === 'ohlc') {
                    minyidx = 3;
                    maxyidx = 2;
                }

                for (j = 0, l = d.length; j < l; j++) {
                    if (this.name === 'xaxis' || this.name === 'x2axis') {
                        if ((d[j][0] !== null && d[j][0] < db.min) || db.min === null) {
                            db.min = d[j][0];
                        }
                        if ((d[j][0] !== null && d[j][0] > db.max) || db.max === null) {
                            db.max = d[j][0];
                        }
                    } else {
                        if ((d[j][minyidx] !== null && d[j][minyidx] < db.min) || db.min === null) {
                            db.min = d[j][minyidx];
                        }
                        if ((d[j][maxyidx] !== null && d[j][maxyidx] > db.max) || db.max === null) {
                            db.max = d[j][maxyidx];
                        }
                    }
                }

                // Hack to not pad out bottom of bar plots unless user has specified a padding.
                // every series will have a chance to set doforce to false.  once it is set to
                // false, it cannot be reset to true.
                // If any series attached to axis is not a bar, wont force 0.
                if (doforce && s.renderer.constructor !== $.jqplot.BarRenderer) {
                    doforce = false;
                } else if (doforce && this._options.hasOwnProperty('forceTickAt0') && this._options.forceTickAt0 === false) {
                    doforce = false;
                } else if (doforce && s.renderer.constructor === $.jqplot.BarRenderer) {
                    if (s.barDirection === 'vertical' && this.name !== 'xaxis' && this.name !== 'x2axis') {
                        if (this._options.pad !== null || this._options.padMin !== null) {
                            doforce = false;
                        }
                    } else if (s.barDirection === 'horizontal' && (this.name === 'xaxis' || this.name === 'x2axis')) {
                        if (this._options.pad !== null || this._options.padMin !== null) {
                            doforce = false;
                        }
                    }

                }
            }
        }

        if (doforce && this.renderer.constructor === $.jqplot.LinearAxisRenderer && db.min >= 0) {
            this.padMin = 1.0;
            this.forceTickAt0 = true;
        }
    };

    /**
     * @memberof $.jqplot
     * @class
     * Class: Legend
     * Legend object.  Cannot be instantiated directly, but created
     * by the Plot object.  Legend properties can be set or overridden by the
     * options passed in from the user.
     */
    function Legend(options) {
        $.jqplot.ElemContainer.call(this);
        // Group: Properties

        // prop: show
        // Wether to display the legend on the graph.
        this.show = false;
        // prop: location
        // Placement of the legend.  one of the compass directions: nw, n, ne, e, se, s, sw, w
        this.location = 'ne';
        // prop: labels
        // Array of labels to use.  By default the renderer will look for labels on the series.
        // Labels specified in this array will override labels specified on the series.
        this.labels = [];
        // prop: showLabels
        // true to show the label text on the  legend.
        this.showLabels = true;
        // prop: showSwatch
        // true to show the color swatches on the legend.
        this.showSwatches = true;
        // prop: placement
        // "insideGrid" places legend inside the grid area of the plot.
        // "outsideGrid" places the legend outside the grid but inside the plot container,
        // shrinking the grid to accomodate the legend.
        // "inside" synonym for "insideGrid",
        // "outside" places the legend ouside the grid area, but does not shrink the grid which
        // can cause the legend to overflow the plot container.
        this.placement = "insideGrid";
        // prop: xoffset
        // DEPRECATED.  Set the margins on the legend using the marginTop, marginLeft, etc.
        // properties or via CSS margin styling of the .jqplot-table-legend class.
        this.xoffset = 0;
        // prop: yoffset
        // DEPRECATED.  Set the margins on the legend using the marginTop, marginLeft, etc.
        // properties or via CSS margin styling of the .jqplot-table-legend class.
        this.yoffset = 0;
        // prop: border
        // css spec for the border around the legend box.
        this.border = null;
        // prop: background
        // css spec for the background of the legend box.
        this.background = null;
        // prop: textColor
        // css color spec for the legend text.
        this.textColor = null;
        // prop: fontFamily
        // css font-family spec for the legend text.
        this.fontFamily = null;
        // prop: fontSize
        // css font-size spec for the legend text.
        this.fontSize = null;
        // prop: rowSpacing
        // css padding-top spec for the rows in the legend.
        this.rowSpacing = '0.5em';
        // renderer
        // A class that will create a DOM object for the legend,
        // see <$.jqplot.TableLegendRenderer>.
        this.renderer = $.jqplot.TableLegendRenderer;
        // prop: rendererOptions
        // renderer specific options passed to the renderer.
        this.rendererOptions = {};
        // prop: predraw
        // Wether to draw the legend before the series or not.
        // Used with series specific legend renderers for pie, donut, mekko charts, etc.
        this.preDraw = false;
        // prop: marginTop
        // CSS margin for the legend DOM element. This will set an element
        // CSS style for the margin which will override any style sheet setting.
        // The default will be taken from the stylesheet.
        this.marginTop = null;
        // prop: marginRight
        // CSS margin for the legend DOM element. This will set an element
        // CSS style for the margin which will override any style sheet setting.
        // The default will be taken from the stylesheet.
        this.marginRight = null;
        // prop: marginBottom
        // CSS margin for the legend DOM element. This will set an element
        // CSS style for the margin which will override any style sheet setting.
        // The default will be taken from the stylesheet.
        this.marginBottom = null;
        // prop: marginLeft
        // CSS margin for the legend DOM element. This will set an element
        // CSS style for the margin which will override any style sheet setting.
        // The default will be taken from the stylesheet.
        this.marginLeft = null;
        // prop: escapeHtml
        // True to escape special characters with their html entity equivalents
        // in legend text.  "<" becomes &lt; and so on, so html tags are not rendered.
        this.escapeHtml = false;
        this._series = [];

        $.extend(true, this, options);
    }

    Legend.prototype = new $.jqplot.ElemContainer();
    Legend.prototype.constructor = Legend;

    /**
     * @param {object} options
     */
    Legend.prototype.setOptions = function (options) {

        $.extend(true, this, options);

        // Try to emulate deprecated behaviour
        // if user has specified xoffset or yoffset, copy these to
        // the margin properties.

        if (this.placement ===  'inside') {
            this.placement = 'insideGrid';
        }

        if (this.xoffset > 0) {
            if (this.placement === 'insideGrid') {
                switch (this.location) {
                case 'nw':
                case 'w':
                case 'sw':
                    if (this.marginLeft === null) {
                        this.marginLeft = this.xoffset + 'px';
                    }
                    this.marginRight = '0px';
                    break;
                //case 'ne':
                //case 'e':
                //case 'se':
                default:
                    if (this.marginRight === null) {
                        this.marginRight = this.xoffset + 'px';
                    }
                    this.marginLeft = '0px';
                    break;
                }
            } else if (this.placement === 'outside') {
                switch (this.location) {
                case 'nw':
                case 'w':
                case 'sw':
                    if (this.marginRight === null) {
                        this.marginRight = this.xoffset + 'px';
                    }
                    this.marginLeft = '0px';
                    break;
                //case 'ne':
                //case 'e':
                //case 'se':
                default:
                    if (this.marginLeft === null) {
                        this.marginLeft = this.xoffset + 'px';
                    }
                    this.marginRight = '0px';
                    break;
                }
            }
            this.xoffset = 0;
        }

        if (this.yoffset > 0) {
            if (this.placement === 'outside') {
                switch (this.location) {
                case 'sw':
                case 's':
                case 'se':
                    if (this.marginTop === null) {
                        this.marginTop = this.yoffset + 'px';
                    }
                    this.marginBottom = '0px';
                    break;
                //case 'ne':
                //case 'n':
                //case 'nw':
                default:
                    if (this.marginBottom === null) {
                        this.marginBottom = this.yoffset + 'px';
                    }
                    this.marginTop = '0px';
                    break;
                }
            } else if (this.placement === 'insideGrid') {
                switch (this.location) {
                case 'sw':
                case 's':
                case 'se':
                    if (this.marginBottom === null) {
                        this.marginBottom = this.yoffset + 'px';
                    }
                    this.marginTop = '0px';
                    break;
                //case 'ne':
                //case 'n':
                //case 'nw':
                default:
                    if (this.marginTop === null) {
                        this.marginTop = this.yoffset + 'px';
                    }
                    this.marginBottom = '0px';
                    break;
                }
            }
            this.yoffset = 0;
        }

        // TO-DO:
        // Handle case where offsets are < 0.
        //
    };

    Legend.prototype.init = function () {
        if ($.isFunction(this.renderer)) {
            this.renderer = new this.renderer();
        }
        this.renderer.init.call(this, this.rendererOptions);
    };

    Legend.prototype.draw = function (offsets, plot) {
        var i, l;
        for (i = 0, l = $.jqplot.preDrawLegendHooks.length; i < l; i++) {
            $.jqplot.preDrawLegendHooks[i].call(this, offsets);
        }
        return this.renderer.draw.call(this, offsets, plot);
    };

    Legend.prototype.pack = function (offsets) {
        this.renderer.pack.call(this, offsets);
    };

    /**
     * @memberof $.jqplot
     * @class
     * Class: Title
     * Plot Title object.  Cannot be instantiated directly, but created
     * by the Plot object.  Title properties can be set or overridden by the
     * options passed in from the user.
     *
     * Parameters:
     * text - text of the title.
     */
    function Title(text) {
        $.jqplot.ElemContainer.call(this);
        // Group: Properties

        // prop: text
        // text of the title;
        this.text = text;
        // prop: show
        // whether or not to show the title
        this.show = true;
        // prop: fontFamily
        // css font-family spec for the text.
        this.fontFamily = null;
        // prop: fontSize
        // css font-size spec for the text.
        this.fontSize = null;
        // prop: textAlign
        // css text-align spec for the text.
        this.textAlign = null;
        // prop: textColor
        // css color spec for the text.
        this.textColor = null;
        // prop: renderer
        // A class for creating a DOM element for the title,
        // see <$.jqplot.DivTitleRenderer>.
        this.renderer = $.jqplot.DivTitleRenderer;
        // prop: rendererOptions
        // renderer specific options passed to the renderer.
        this.rendererOptions = {};
        // prop: escapeHtml
        // True to escape special characters with their html entity equivalents
        // in title text.  "<" becomes &lt; and so on, so html tags are not rendered.
        this.escapeHtml = false;
    }

    Title.prototype = new $.jqplot.ElemContainer();
    Title.prototype.constructor = Title;

    Title.prototype.init = function () {
        if ($.isFunction(this.renderer)) {
            this.renderer = new this.renderer();
        }
        this.renderer.init.call(this, this.rendererOptions);
    };

    Title.prototype.draw = function (width) {
        return this.renderer.draw.call(this, width);
    };

    Title.prototype.pack = function () {
        this.renderer.pack.call(this);
    };

    /**
     * @memberof $.jqplot
     * @class
     * Class: Series
     * An individual data series object.  Cannot be instantiated directly, but created
     * by the Plot object.  Series properties can be set or overridden by the
     * options passed in from the user.
     * @param {object} options series' optons.
     */
    function Series(options) {
        options = options || {};
        $.jqplot.ElemContainer.call(this);
        // Group: Properties
        // Properties will be assigned from a series array at the top level of the
        // options.  If you had two series and wanted to change the color and line
        // width of the first and set the second to use the secondary y axis with
        // no shadow and supply custom labels for each:
        // > {
        // >    series:[
        // >        {color: '#ff4466', lineWidth: 5, label:'good line'},
        // >        {yaxis: 'y2axis', shadow: false, label:'bad line'}
        // >    ]
        // > }

        // prop: show
        // whether or not to draw the series.
        this.show = true;
        // prop: xaxis
        // which x axis to use with this series, either 'xaxis' or 'x2axis'.
        this.xaxis = 'xaxis';
        this._xaxis = null;
        // prop: yaxis
        // which y axis to use with this series, either 'yaxis' or 'y2axis'.
        this.yaxis = 'yaxis';
        this._yaxis = null;
        this.gridBorderWidth = 2.0;
        // prop: renderer
        // A class of a renderer which will draw the series,
        // see <$.jqplot.LineRenderer>.
        this.renderer = $.jqplot.LineRenderer;
        // prop: rendererOptions
        // Options to pass on to the renderer.
        this.rendererOptions = {};
        this.data = [];
        this.gridData = [];
        // prop: label
        // Line label to use in the legend.
        this.label = '';
        // prop: showLabel
        // true to show label for this series in the legend.
        this.showLabel = true;
        // prop: color
        // css color spec for the series
        this.color = null;
        // prop: negativeColor
        // css color spec used for filled (area) plots that are filled to zero and
        // the "useNegativeColors" option is true.
        this.negativeColor = null;
        // prop: lineWidth
        // width of the line in pixels.  May have different meanings depending on renderer.
        this.lineWidth = 2.5;
        // prop: lineJoin
        // Canvas lineJoin style between segments of series.
        this.lineJoin = 'round';
        // prop: lineCap
        // Canvas lineCap style at ends of line.
        this.lineCap = 'round';
        // prop: linePattern
        // line pattern 'dashed', 'dotted', 'solid', some combination
        // of '-' and '.' characters such as '.-.' or a numerical array like
        // [draw, skip, draw, skip, ...] such as [1, 10] to draw a dotted line,
        // [1, 10, 20, 10] to draw a dot-dash line, and so on.
        this.linePattern = 'solid';
        this.shadow = true;
        // prop: shadowAngle
        // Shadow angle in degrees
        this.shadowAngle = 45;
        // prop: shadowOffset
        // Shadow offset from line in pixels
        this.shadowOffset = 1.25;
        // prop: shadowDepth
        // Number of times shadow is stroked, each stroke offset shadowOffset from the last.
        this.shadowDepth = 3;
        // prop: shadowAlpha
        // Alpha channel transparency of shadow.  0 = transparent.
        this.shadowAlpha = '0.1';
        // prop: breakOnNull
        // Wether line segments should be be broken at null value.
        // False will join point on either side of line.
        this.breakOnNull = false;
        // prop: markerRenderer
        // A class of a renderer which will draw marker (e.g. circle, square, ...) at the data points,
        // see <$.jqplot.MarkerRenderer>.
        this.markerRenderer = $.jqplot.MarkerRenderer;
        // prop: markerOptions
        // renderer specific options to pass to the markerRenderer,
        // see <$.jqplot.MarkerRenderer>.
        this.markerOptions = {};
        // prop: showLine
        // whether to actually draw the line or not.  Series will still be renderered, even if no line is drawn.
        this.showLine = true;
        // prop: showMarker
        // whether or not to show the markers at the data points.
        this.showMarker = true;
        // prop: index
        // 0 based index of this series in the plot series array.
        this.index = null;
        // prop: fill
        // true or false, whether to fill under lines or in bars.
        // May not be implemented in all renderers.
        this.fill = false;
        // prop: fillColor
        // CSS color spec to use for fill under line.  Defaults to line color.
        this.fillColor = null;
        // prop: fillGradient
        // if true :enable gradient rendering for fill.
		this.fillGradient = false;
		// prop: fillGradientColor
        // css colorif true :gradient Color combinated with Color.
		this.fillGradientColor = null;
		// prop: fillGradientDelay
        // 0 for no delay,1 for no gradient.
		this.fillGradientDelay = null;
		// prop: fillAlpha
        // Alpha transparency to apply to the fill under the line.
        // Use this to adjust alpha separate from fill color.
        this.fillAlpha = null;
        // prop: fillAndStroke
        // If true will stroke the line (with color this.color) as well as fill under it.
        // Applies only when fill is true.
        this.fillAndStroke = false;
        // prop: disableStack
        // true to not stack this series with other series in the plot.
        // To render properly, non-stacked series must come after any stacked series
        // in the plot's data series array.  So, the plot's data series array would look like:
        // > [stackedSeries1, stackedSeries2, ..., nonStackedSeries1, nonStackedSeries2, ...]
        // disableStack will put a gap in the stacking order of series, and subsequent
        // stacked series will not fill down through the non-stacked series and will
        // most likely not stack properly on top of the non-stacked series.
        this.disableStack = false;
        // _stack is set by the Plot if the plot is a stacked chart.
        // will stack lines or bars on top of one another to build a "mountain" style chart.
        // May not be implemented in all renderers.
        this._stack = false;
        // prop: neighborThreshold
        // how close or far (in pixels) the cursor must be from a point marker to detect the point.
        this.neighborThreshold = 4;
        // prop: fillToZero
        // true will force bar and filled series to fill toward zero on the fill Axis.
        this.fillToZero = false;
        // prop: fillToValue
        // fill a filled series to this value on the fill axis.
        // Works in conjunction with fillToZero, so that must be true.
        this.fillToValue = 0;
        // prop: fillAxis
        // Either 'x' or 'y'.  Which axis to fill the line toward if fillToZero is true.
        // 'y' means fill up/down to 0 on the y axis for this series.
        this.fillAxis = 'y';
        // prop: useNegativeColors
        // true to color negative values differently in filled and bar charts.
        this.useNegativeColors = true;
        this._stackData = [];
        // _plotData accounts for stacking.  If plots not stacked, _plotData and data are same.  If
        // stacked, _plotData is accumulation of stacking data.
        this._plotData = [];
        // _plotValues hold the individual x and y values that will be plotted for this series.
        this._plotValues = {x: [], y: []};
        // statistics about the intervals between data points.  Used for auto scaling.
        this._intervals = {x: {}, y: {}};
        // data from the previous series, for stacked charts.
        this._prevPlotData = [];
        this._prevGridData = [];
        this._stackAxis = 'y';
        this._primaryAxis = '_xaxis';
        // give each series a canvas to draw on.  This should allow for redrawing speedups.
        this.canvas = new $.jqplot.GenericCanvas();
        this.shadowCanvas = new $.jqplot.GenericCanvas();
        this.plugins = {};
        // sum of y values in this series.
        this._sumy = 0;
        this._sumx = 0;
        this._type = '';
    }

    Series.prototype = new $.jqplot.ElemContainer();
    Series.prototype.constructor = Series;

    Series.prototype.init = function (index, gridbw, plot) {

        var d = this.data,
            temp = [],
            i,
            l,
            comp,
            comp2;

        // weed out any null values in the data.
        this.index = index;
        this.gridBorderWidth = gridbw;

        for (i = 0, l = d.length; i < l; i++) {
            if (!this.breakOnNull) {
                if (d[i] === null || d[i][0] === null || d[i][1] === null) {
                    // svandecappelle modification to implements null values in canvas. TODO check non-regression.
                    temp.push(d[i]);
                    continue;
                } else {
                    temp.push(d[i]);
                }
            } else {
                // TODO: figure out what to do with null values
                // probably involve keeping nulls in data array
                // and then updating renderers to break line
                // when it hits null value.
                // For now, just keep value.
                temp.push(d[i]);
            }
        }

        this.data = temp;

        // parse the renderer options and apply default colors if not provided
        // Set color even if not shown, so series don't change colors when other
        // series on plot shown/hidden.
        if (!this.color) {
            this.color = plot.colorGenerator.get(this.index);
        }
        if (!this.negativeColor) {
            this.negativeColor = plot.negativeColorGenerator.get(this.index);
        }

        if (!this.fillColor) {
            this.fillColor = this.color;
        }
        if (this.fillAlpha) {
            comp = $.jqplot.normalize2rgb(this.fillColor);
            comp = $.jqplot.getColorComponents(comp);
            this.fillColor = 'rgba(' + comp[0] + ',' + comp[1] + ',' + comp[2] + ',' + this.fillAlpha + ')';
            if (this.fillGradient && this.fillGradientColor) {
                comp2 = $.jqplot.normalize2rgb(this.fillGradientColor);
                comp2 = $.jqplot.getColorComponents(comp2);
                this.fillGradientColor = 'rgba(' + comp2[0] + ',' + comp2[1] + ',' + comp2[2] + ',' + this.fillAlpha + ')';
            }
        }

        if ($.isFunction(this.renderer)) {
            this.renderer = new this.renderer();
        }

        this.renderer.init.call(this, this.rendererOptions, plot);

        this.markerRenderer = new this.markerRenderer();

        if (!this.markerOptions.color) {
            this.markerOptions.color = this.color;
        }
        if (this.markerOptions.show === null) {
            this.markerOptions.show = this.showMarker;
        }
        this.showMarker = this.markerOptions.show;
        // the markerRenderer is called within its own scope, don't want to overwrite series options!!
        this.markerRenderer.init(this.markerOptions);
    };

    // data - optional data point array to draw using this series renderer
    // gridData - optional grid data point array to draw using this series renderer
    // stackData - array of cumulative data for stacked plots.
    Series.prototype.draw = function (sctx, opts, plot) {

        var options = (typeof opts === "undefined") ? {} : opts,
            j,
            l,
            data,
            gridData;

        sctx = (typeof sctx === "undefined") ? this.canvas._ctx : sctx;

        // hooks get called even if series not shown
        // we don't clear canvas here, it would wipe out all other series as well.
        for (j = 0, l = $.jqplot.preDrawSeriesHooks.length; j < l; j++) {
            $.jqplot.preDrawSeriesHooks[j].call(this, sctx, options);
        }

        if (this.show) {

            this.renderer.setGridData.call(this, plot);

            if (!options.preventJqPlotSeriesDrawTrigger) {
                $(sctx.canvas).trigger('jqplotSeriesDraw', [this.data, this.gridData]);
            }

            data = [];

            if (options.data) {
                data = options.data;
            } else if (!this._stack) {
                data = this.data;
            } else {
                data = this._plotData;
            }

            gridData = options.gridData || this.renderer.makeGridData.call(this, data, plot);

            if (this._type === 'line' && this.renderer.smooth && this.renderer._smoothedData.length) {
                gridData = this.renderer._smoothedData;
            }

            this.renderer.draw.call(this, sctx, gridData, options, plot);
        }

        for (j = 0, l = $.jqplot.postDrawSeriesHooks.length; j < l; j++) {
            $.jqplot.postDrawSeriesHooks[j].call(this, sctx, options, plot);
        }

        sctx = opts = plot = j = data = gridData = null;
    };

    Series.prototype.drawShadow = function (sctx, opts, plot) {

        var options = (typeof opts === "undefined") ? {} : opts,
            j,
            l,
            data,
            gridData;

        sctx = (typeof sctx === "undefined") ? this.shadowCanvas._ctx : sctx;

        // hooks get called even if series not shown
        // we don't clear canvas here, it would wipe out all other series as well.
        for (j = 0, l = $.jqplot.preDrawSeriesShadowHooks.length; j < l; j++) {
            $.jqplot.preDrawSeriesShadowHooks[j].call(this, sctx, options);
        }

        if (this.shadow) {

            this.renderer.setGridData.call(this, plot);

            data = [];

            if (options.data) {
                data = options.data;
            } else if (!this._stack) {
                data = this.data;
            } else {
                data = this._plotData;
            }

            gridData = options.gridData || this.renderer.makeGridData.call(this, data, plot);

            this.renderer.drawShadow.call(this, sctx, gridData, options, plot);
        }

        for (j = 0, l = $.jqplot.postDrawSeriesShadowHooks.length; j < l; j++) {
            $.jqplot.postDrawSeriesShadowHooks[j].call(this, sctx, options);
        }

        sctx = opts = plot = j = data = gridData = null;

    };

    /** 
     * toggles series display on plot, e.g. show/hide series
     * @param {object} ev - event.
     * @param {function} callback - callback function called when seres had been toggled.
     */
    Series.prototype.toggleDisplay = function (ev, callback) {
        var s,
            speed;

        if (ev.data.series) {
            s = ev.data.series;
        } else {
            s = this;
        }

        if (ev.data.speed) {
            speed = ev.data.speed;
        }
        if (speed) {
            // this can be tricky because series may not have a canvas element if replotting.
            if (s.canvas._elem.is(':hidden') || !s.show) {
                s.show = true;

                s.canvas._elem.removeClass('jqplot-series-hidden');
                if (s.shadowCanvas._elem) {
                    s.shadowCanvas._elem.fadeIn(speed);
                }
                s.canvas._elem.fadeIn(speed, callback);
                s.canvas._elem.nextAll('.jqplot-point-label.jqplot-series-' + s.index).fadeIn(speed);
            } else {
                s.show = false;

                s.canvas._elem.addClass('jqplot-series-hidden');
                if (s.shadowCanvas._elem) {
                    s.shadowCanvas._elem.fadeOut(speed);
                }
                s.canvas._elem.fadeOut(speed, callback);
                s.canvas._elem.nextAll('.jqplot-point-label.jqplot-series-' + s.index).fadeOut(speed);
            }
        } else {
            // this can be tricky because series may not have a canvas element if replotting.
            if (s.canvas._elem.is(':hidden') || !s.show) {
                s.show = true;

                s.canvas._elem.removeClass('jqplot-series-hidden');
                if (s.shadowCanvas._elem) {
                    s.shadowCanvas._elem.show();
                }
                s.canvas._elem.show(0, callback);
                s.canvas._elem.nextAll('.jqplot-point-label.jqplot-series-' + s.index).show();
            } else {
                s.show = false;

                s.canvas._elem.addClass('jqplot-series-hidden');
                if (s.shadowCanvas._elem) {
                    s.shadowCanvas._elem.hide();
                }
                s.canvas._elem.hide(0, callback);
                s.canvas._elem.nextAll('.jqplot-point-label.jqplot-series-' + s.index).hide();
            }
        }
    };

    /**
     * @memberof $.jqplot
     * @class
     *
     * Object representing the grid on which the plot is drawn.  The grid in this
     * context is the area bounded by the axes, the area which will contain the series.
     * Note, the series are drawn on their own canvas.
     * The Grid object cannot be instantiated directly, but is created by the Plot object.
     * Grid properties can be set or overridden by the options passed in from the user.
     */
    function Grid() {
        $.jqplot.ElemContainer.call(this);
        // Group: Properties

        // prop: drawGridlines
        // whether to draw the gridlines on the plot.
        this.drawGridlines = true;
        // prop: gridLineColor
        // color of the grid lines.
        this.gridLineColor = '#cccccc';
        // prop: gridLineWidth
        // width of the grid lines.
        this.gridLineWidth = 1.0;
        // prop: background
        // css spec for the background color.
        this.background = 'transparent';
        // prop: borderColor
        // css spec for the color of the grid border.
        this.borderColor = '#BABABA';
        // prop: borderWidth
        // width of the border in pixels.
        this.borderWidth = 2.0;
        // prop: drawBorder
        // True to draw border around grid.
        this.drawBorder = true;
        // prop: shadow
        // whether to show a shadow behind the grid.
        this.shadow = true;
        // prop: shadowAngle
        // shadow angle in degrees
        this.shadowAngle = 45;
        // prop: shadowOffset
        // Offset of each shadow stroke from the border in pixels
        this.shadowOffset = 1.5;
        // prop: shadowWidth
        // width of the stoke for the shadow
        this.shadowWidth = 3;
        // prop: shadowDepth
        // Number of times shadow is stroked, each stroke offset shadowOffset from the last.
        this.shadowDepth = 3;
        // prop: shadowColor
        // an optional css color spec for the shadow in 'rgba(n, n, n, n)' form
        this.shadowColor = null;
        // prop: shadowAlpha
        // Alpha channel transparency of shadow.  0 = transparent.
        this.shadowAlpha = '0.07';
        this._left = null;
        this._top = null;
        this._right = null;
        this._bottom = null;
        this._width = null;
        this._height = null;
        this._axes = [];
        // prop: renderer
        // Instance of a renderer which will actually render the grid,
        // see <$.jqplot.CanvasGridRenderer>.
        this.renderer = $.jqplot.CanvasGridRenderer;
        // prop: rendererOptions
        // Options to pass on to the renderer,
        // see <$.jqplot.CanvasGridRenderer>.
        this.rendererOptions = {};
        this._offsets = {top: null, bottom: null, left: null, right: null};
    }

    Grid.prototype = new $.jqplot.ElemContainer();
    Grid.prototype.constructor = Grid;

    Grid.prototype.init = function () {
        if ($.isFunction(this.renderer)) {
            this.renderer = new this.renderer();
        }
        this.renderer.init.call(this, this.rendererOptions);
    };

    Grid.prototype.createElement = function (offsets, plot) {
        this._offsets = offsets;
        return this.renderer.createElement.call(this, plot);
    };

    Grid.prototype.draw = function () {
        this.renderer.draw.call(this);
    };

    /**
     * @class
     */
    $.jqplot.GenericCanvas = function () {
        $.jqplot.ElemContainer.call(this);
        this._ctx = null;
    };

    $.jqplot.GenericCanvas.prototype = new $.jqplot.ElemContainer();
    $.jqplot.GenericCanvas.prototype.constructor = $.jqplot.GenericCanvas;

    $.jqplot.GenericCanvas.prototype.createElement = function (offsets, clss, plotDimensions, plot) {

        this._offsets = offsets;

        var klass = 'jqplot',
            elem;

        if (typeof clss !== "undefined") {
            klass = clss;
        }

        elem = plot.canvasManager.getCanvas();

        // if new plotDimensions supplied, use them.
        if (plotDimensions !== null) {
            this._plotDimensions = plotDimensions;
        }

        elem.width = this._plotDimensions.width - this._offsets.left - this._offsets.right;
        elem.height = this._plotDimensions.height - this._offsets.top - this._offsets.bottom;

        this._elem = $(elem);
        this._elem.css({ position: 'absolute', left: this._offsets.left, top: this._offsets.top });

        this._elem.addClass(klass);

        elem = plot.canvasManager.initCanvas(elem);

        elem = null;

        return this._elem;

    };

    $.jqplot.GenericCanvas.prototype.setContext = function () {
        this._ctx = this._elem.get(0).getContext("2d");
        return this._ctx;
    };

    /** 
     * Memory Leaks patch
     */
    $.jqplot.GenericCanvas.prototype.resetCanvas = function () {

        if (this._elem) {
            if ($.jqplot.use_excanvas && window.G_vmlCanvasManager.uninitElement) {
                window.G_vmlCanvasManager.uninitElement(this._elem.get(0));
            }

            //this._elem.remove();
            this._elem.emptyForce();
        }

        this._ctx = null;
    };

    /**
     * @class
     * @constructor
     */
    $.jqplot.HooksManager = function () {
        this.hooks = [];
        this.args = [];
    };

    $.jqplot.HooksManager.prototype.addOnce = function (fn, args) {

        args = args || [];

        var havehook = false,
            i,
            l;

        for (i = 0, l = this.hooks.length; i < l; i++) {
            if (this.hooks[i] === fn) {
                havehook = true;
            }
        }
        if (!havehook) {
            this.hooks.push(fn);
            this.args.push(args);
        }
    };

    $.jqplot.HooksManager.prototype.add = function (fn, args) {
        args = args || [];
        this.hooks.push(fn);
        this.args.push(args);
    };

    /**
     * @class
     * @constructor
     */
    $.jqplot.EventListenerManager = function () {
        this.hooks = [];
    };

    $.jqplot.EventListenerManager.prototype.addOnce = function (ev, fn) {
        var havehook = false,
            h,
            i,
            l;
        for (i = 0, l = this.hooks.length; i < l; i++) {
            h = this.hooks[i];
            if (h[0] === ev && h[1] === fn) {
                havehook = true;
            }
        }
        if (!havehook) {
            this.hooks.push([ev, fn]);
        }
    };

    $.jqplot.EventListenerManager.prototype.add = function (ev, fn) {
        this.hooks.push([ev, fn]);
    };

    /**
     * @memberof $.jqplot
     * @class
     * @contructor
     * 
     * Plot object returned by call to $.jqplot.  Handles parsing user options,
     * creating sub objects (Axes, legend, title, series) and rendering the plot. 
     * 
     */
    function JqPlot() {

        var seriesColorsIndex = 0;

        // Group: Properties
        // These properties are specified at the top of the options object
        // like so:
        // > {
        // >     axesDefaults:{min:0},
        // >     series:[{color:'#6633dd'}],
        // >     title: 'A Plot'
        // > }
        //

        // prop: animate
        // True to animate the series on initial plot draw (renderer dependent).
        // Actual animation functionality must be supported in the renderer.
        this.animate = false;
        // prop: animateReplot
        // True to animate series after a call to the replot() method.
        // Use with caution!  Replots can happen very frequently under
        // certain circumstances (e.g. resizing, dragging points) and
        // animation in these situations can cause problems.
        this.animateReplot = false;
        // prop: axes
        // up to 4 axes are supported, each with its own options,
        // See <Axis> for axis specific options.
        this.axes = {
            xaxis: new Axis('xaxis'),
            yaxis: new Axis('yaxis'),
            x2axis: new Axis('x2axis'),
            y2axis: new Axis('y2axis'),
            y3axis: new Axis('y3axis'),
            y4axis: new Axis('y4axis'),
            y5axis: new Axis('y5axis'),
            y6axis: new Axis('y6axis'),
            y7axis: new Axis('y7axis'),
            y8axis: new Axis('y8axis'),
            y9axis: new Axis('y9axis'),
            yMidAxis: new Axis('yMidAxis')
        };
        // jqplot base canvas. Lowest canvas.
        this.baseCanvas = new $.jqplot.GenericCanvas();
        // true to intercept right click events and fire a 'jqplotRightClick' event.
        // this will also block the context menu.
        this.captureRightClick = false;
        // prop: data
        // user's data.  Data should *NOT* be specified in the options object,
        // but be passed in as the second argument to the $.jqplot() function.
        // The data property is described here soley for reference.
        // The data should be in the form of an array of 2D or 1D arrays like
        // > [ [[x1, y1], [x2, y2],...], [y1, y2, ...] ].
        this.data = [];
        // prop: dataRenderer
        // A callable which can be used to preprocess data passed into the plot.
        // Will be called with 3 arguments: the plot data, a reference to the plot,
        // and the value of dataRendererOptions.
        this.dataRenderer = null;
        // prop: dataRendererOptions
        // Options that will be passed to the dataRenderer.
        // Can be of any type.
        this.dataRendererOptions = null;
        this.defaults = {
            // prop: axesDefaults
            // default options that will be applied to all axes.
            // see <Axis> for axes options.
            axesDefaults: {},
            axes: {xaxis: {}, yaxis: {}, x2axis: {}, y2axis: {}, y3axis: {}, y4axis: {}, y5axis: {}, y6axis: {}, y7axis: {}, y8axis: {}, y9axis: {}, yMidAxis: {}},
            // prop: seriesDefaults
            // default options that will be applied to all series.
            // see <Series> for series options.
            seriesDefaults: {},
            series: []
        };
        // prop: defaultAxisStart
        // 1-D data series are internally converted into 2-D [x,y] data point arrays
        // by jqPlot.  This is the default starting value for the missing x or y value.
        // The added data will be a monotonically increasing series (e.g. [1, 2, 3, ...])
        // starting at this value.
        this.defaultAxisStart = 1;
        // this.doCustomEventBinding = true;
        // prop: drawIfHidden
        // True to execute the draw method even if the plot target is hidden.
        // Generally, this should be false.  Most plot elements will not be sized/
        // positioned correclty if renderered into a hidden container.  To render into
        // a hidden container, call the replot method when the container is shown.
        this.drawIfHidden = false;
        this.eventCanvas = new $.jqplot.GenericCanvas();

        this.bellowSeriesCanvas = new $.jqplot.GenericCanvas();

        // prop: fillBetween
        // Fill between 2 line series in a plot.
        // Options object:
        // {
        //    series1: first index (0 based) of series in fill
        //    series2: second index (0 based) of series in fill
        //    color: color of fill [default fillColor of series1]
        //    baseSeries:  fill will be drawn below this series (0 based index)
        //    fill: false to turn off fill [default true].
        //  }
        this.fillBetween = {
            series1: null,
            series2: null,
            color: null,
            baseSeries: 0,
            fill: true
        };
        // prop; fontFamily
        // css spec for the font-family attribute.  Default for the entire plot.
        this.fontFamily = null;
        // prop: fontSize
        // css spec for the font-size attribute.  Default for the entire plot.
        this.fontSize = null;
        // prop: grid
        // See <Grid> for grid specific options.
        this.grid = new Grid();
        // prop: legend
        // see <$.jqplot.TableLegendRenderer>
        this.legend = new Legend();
        // prop: noDataIndicator
        // Options to set up a mock plot with a data loading indicator if no data is specified.
        this.noDataIndicator = {
            show: false,
            indicator: 'Loading Data...',
            axes: {
                xaxis: {
                    min: 0,
                    max: 10,
                    tickInterval: 2,
                    show: true
                },
                yaxis: {
                    min: 0,
                    max: 12,
                    tickInterval: 3,
                    show: true
                }
            }
        };
        // prop: negativeSeriesColors
        // colors to use for portions of the line below zero.
        this.negativeSeriesColors = $.jqplot.config.defaultNegativeColors;
        // container to hold all of the merged options.  Convienence for plugins.
        this.options = {};
        this.previousSeriesStack = [];
        // Namespace to hold plugins.  Generally non-renderer plugins add themselves to here.
        this.plugins = {};
        // prop: series
        // Array of series object options.
        // see <Series> for series specific options.
        this.series = [];
        // array of series indices. Keep track of order
        // which series canvases are displayed, lowest
        // to highest, back to front.
        this.seriesStack = [];
        // prop: seriesColors
        // Ann array of CSS color specifications that will be applied, in order,
        // to the series in the plot.  Colors will wrap around so, if their
        // are more series than colors, colors will be reused starting at the
        // beginning.  For pie charts, this specifies the colors of the slices.
        this.seriesColors = $.jqplot.config.defaultColors;
        // prop: sortData
        // false to not sort the data passed in by the user.
        // Many bar, stacked and other graphs as well as many plugins depend on
        // having sorted data.
        this.sortData = true;
        // prop: stackSeries
        // true or false, creates a stack or "mountain" plot.
        // Not all series renderers may implement this option.
        this.stackSeries = false;
        // a shortcut for axis syncTicks options.  Not implemented yet.
        this.syncXTicks = true;
        // a shortcut for axis syncTicks options.  Not implemented yet.
        this.syncYTicks = true;
        // the jquery object for the dom target.
        this.target = null;
        // The id of the dom element to render the plot into
        this.targetId = null;
        // prop textColor
        // css spec for the css color attribute.  Default for the entire plot.
        this.textColor = null;
        // prop: title
        // Title object.  See <Title> for specific options.  As a shortcut, you
        // can specify the title option as just a string like: title: 'My Plot'
        // and this will create a new title object with the specified text.
        this.title = new Title();
        // Count how many times the draw method has been called while the plot is visible.
        // Mostly used to test if plot has never been dran (=0), has been successfully drawn
        // into a visible container once (=1) or draw more than once into a visible container.
        // Can use this in tests to see if plot has been visibly drawn at least one time.
        // After plot has been visibly drawn once, it generally doesn't need redrawing if its
        // container is hidden and shown.
        this._drawCount = 0;
        // sum of y values for all series in plot.
        // used in mekko chart.
        this._sumy = 0;
        this._sumx = 0;
        // array to hold the cumulative stacked series data.
        // used to ajust the individual series data, which won't have access to other
        // series data.
        this._stackData = [];
        // array that holds the data to be plotted. This will be the series data
        // merged with the the appropriate data from _stackData according to the stackAxis.
        this._plotData = [];
        this._width = null;
        this._height = null;
        this._plotDimensions = {height: null, width: null};
        this._gridPadding = {top: null, right: null, bottom: null, left: null};
        this._defaultGridPadding = {top: 10, right: 10, bottom: 23, left: 10};

        // Setting up $.jqplot plugins

        this._addDomReference = $.jqplot.config.addDomReference;

        this.preInitHooks = new $.jqplot.HooksManager();
        this.postInitHooks = new $.jqplot.HooksManager();
        this.preParseOptionsHooks = new $.jqplot.HooksManager();
        this.postParseOptionsHooks = new $.jqplot.HooksManager();
        this.preDrawHooks = new $.jqplot.HooksManager();
        this.postDrawHooks = new $.jqplot.HooksManager();
        this.preDrawSeriesHooks = new $.jqplot.HooksManager();
        this.postDrawSeriesHooks = new $.jqplot.HooksManager();
        this.preDrawLegendHooks = new $.jqplot.HooksManager();
        this.addLegendRowHooks = new $.jqplot.HooksManager();
        this.preSeriesInitHooks = new $.jqplot.HooksManager();
        this.postSeriesInitHooks = new $.jqplot.HooksManager();
        this.preParseSeriesOptionsHooks = new $.jqplot.HooksManager();
        this.postParseSeriesOptionsHooks = new $.jqplot.HooksManager();
        this.eventListenerHooks = new $.jqplot.EventListenerManager();
        this.preDrawAllSeriesHooks = new $.jqplot.HooksManager();
        this.preDrawSeriesShadowHooks = new $.jqplot.HooksManager();
        this.postDrawSeriesShadowHooks = new $.jqplot.HooksManager();

        this.colorGenerator = new $.jqplot.ColorGenerator();
        this.negativeColorGenerator = new $.jqplot.ColorGenerator();

        this.canvasManager = new $.jqplot.CanvasManager();

        this.themeEngine = new $.jqplot.ThemeEngine();

        /**
         * Function to safely return colors from the color array and wrap around at the end.
         * @param object {t}
         * @returns String serie color
         * @TODO: Figure out why this function is set to run immediately?
         */
        this.getNextSeriesColor = (function (t) {

            var idx = 0,
                sc = t.seriesColors;

            return function () {
                if (idx < sc.length) {
                    return sc[idx++];
                } else {
                    idx = 0;
                    return sc[idx++];
                }
            };

        }(this));

    }

    /**
     * Group: methods
     *
     * method: init
     * sets the plot target, checks data and applies user
     * options to plot.
     *
     * @param {object} target - html id of the html element which chart is inserted into.
     * @param {number[]} data data - chart data
     * @param {object} options - options of the chart. 
     */
    JqPlot.prototype.init = function (target, data, options) {

        var i,
            j,
            l,
            seriesLen,
            h,
            w,
            ax,
            prop,
            name,
            axis;

        options = options || {};

        for (i = 0, l = $.jqplot.preInitHooks.length; i < l; i++) {
            $.jqplot.preInitHooks[i].call(this, target, data, options);
        }

        for (i = 0, l = this.preInitHooks.hooks.length; i < l; i++) {
            this.preInitHooks.hooks[i].call(this, target, data, options);
        }

        this.targetId = '#' + target;
        this.target = $('#' + target);

        //////
        // Add a reference to plot
        //////
        if (this._addDomReference) {
            this.target.data('jqplot', this);
        }
        // remove any error class that may be stuck on target.
        this.target.removeClass('jqplot-error');
        if (!this.target.get(0)) {
            throw new Error("No plot target specified");
        }

        // make sure the target is positioned by some means and set css
        if (this.target.css('position') === 'static') {
            this.target.css('position', 'relative');
        }
        if (!this.target.hasClass('jqplot-target')) {
            this.target.addClass('jqplot-target');
        }

        // if no height or width specified, use a default.
        if (!this.target.height()) {
            if (options && options.height) {
                h = parseInt(options.height, 10);
            } else if (this.target.attr('data-height')) {
                h = parseInt(this.target.attr('data-height'), 10);
            } else {
                h = parseInt($.jqplot.config.defaultHeight, 10);
            }
            this._height = h;
            this.target.css('height', h + 'px');
        } else {
            this._height = h = this.target.height();
        }

        if (!this.target.width()) {
            if (options && options.width) {
                w = parseInt(options.width, 10);
            } else if (this.target.attr('data-width')) {
                w = parseInt(this.target.attr('data-width'), 10);
            } else {
                w = parseInt($.jqplot.config.defaultWidth, 10);
            }
            this._width = w;
            this.target.css('width', w + 'px');
        } else {
            this._width = w = this.target.width();
        }

        for (i = 0, l = _axisNames.length; i < l; i++) {
            this.axes[_axisNames[i]] = new Axis(_axisNames[i]);
        }

        this._plotDimensions.height = this._height;
        this._plotDimensions.width = this._width;
        this.grid._plotDimensions = this._plotDimensions;
        this.title._plotDimensions = this._plotDimensions;
        this.baseCanvas._plotDimensions = this._plotDimensions;
        this.eventCanvas._plotDimensions = this._plotDimensions;
        this.legend._plotDimensions = this._plotDimensions;

        if (this._height <= 0 || this._width <= 0 || !this._height || !this._width) {
            throw new Error("Canvas dimension not set");
        }

        if (options.dataRenderer && $.isFunction(options.dataRenderer)) {
            if (options.dataRendererOptions) {
                this.dataRendererOptions = options.dataRendererOptions;
            }
            this.dataRenderer = options.dataRenderer;
            data = this.dataRenderer(data, this, this.dataRendererOptions);
        }

        if (options.noDataIndicator && $.isPlainObject(options.noDataIndicator)) {
            $.extend(true, this.noDataIndicator, options.noDataIndicator);
        }

        if (data === null || $.isArray(data) === false || data.length === 0 || $.isArray(data[0]) === false || data[0].length === 0) {

            if (this.noDataIndicator.show === false) {
                throw new Error("No data specified. (Tips: Use noDataIndicator to show a noDataIndicator on chart)");
            } else {
                // have to be descructive here in order for plot to not try and render series.
                // This means that $.jqplot() will have to be called again when there is data.
                //delete options.series;

                for (ax in this.noDataIndicator.axes) {
                    if (this.noDataIndicator.axes.hasOwnProperty(ax)) {
                        for (prop in this.noDataIndicator.axes[ax]) {
                            if (this.noDataIndicator.axes[ax].hasOwnProperty(prop)) {
                                this.axes[ax][prop] = this.noDataIndicator.axes[ax][prop];
                            }
                        }
                    }
                }

                this.postDrawHooks.add(function () {

                    var eh = this.eventCanvas.getHeight(),
                        ew = this.eventCanvas.getWidth(),
                        $temp = $('<div class="jqplot-noData-container" style="position:absolute;"></div>'),
                        $temp2 = $('<div class="jqplot-noData-contents" style="text-align:center; position:relative;"><div class="outer-center"><div class="inner-center"></div></div><div class="clear"></div></div>'),
                        th,
                        tw;

                    this.target.append($temp);

                    $temp
                        .height(eh)
                        .width(ew)
                        .css({'top': this.eventCanvas._offsets.top, 'left': this.eventCanvas._offsets.left })
                        .append($temp2);

                    $temp2.find(".inner-center").html(this.noDataIndicator.indicator);

                    th = $temp2.height();
                    tw = $temp2.width();

                    $temp2
                        .height(th)
                        .width(tw)
                        .css('top', (eh - th) / 2 + 'px');

                });

            }
        }

        // make a copy of the data
        this.data = $.extend(true, [], data);

        this.parseOptions(options);

        if (this.textColor) {
            this.target.css('color', this.textColor);
        }
        if (this.fontFamily) {
            this.target.css('font-family', this.fontFamily);
        }
        if (this.fontSize) {
            this.target.css('font-size', this.fontSize);
        }

        this.title.init();
        this.legend.init();
        this._sumy = 0;
        this._sumx = 0;
        this.computePlotData();

        for (i = 0, seriesLen = this.series.length; i < seriesLen; i++) {

            // set default stacking order for series canvases
            this.seriesStack.push(i);
            this.previousSeriesStack.push(i);

            this.series[i].shadowCanvas._plotDimensions = this._plotDimensions;
            this.series[i].canvas._plotDimensions = this._plotDimensions;

            for (j = 0, l = $.jqplot.preSeriesInitHooks.length; j < l; j++) {
                $.jqplot.preSeriesInitHooks[j].call(this.series[i], target, this.data, this.options.seriesDefaults, this.options.series[i], this);
            }

            for (j = 0, l = this.preSeriesInitHooks.hooks.length; j < l; j++) {
                this.preSeriesInitHooks.hooks[j].call(this.series[i], target, this.data, this.options.seriesDefaults, this.options.series[i], this);
            }

            // this.populatePlotData(this.series[i], i);
            this.series[i]._plotDimensions = this._plotDimensions;
            this.series[i].init(i, this.grid.borderWidth, this);

            for (j = 0, l = $.jqplot.postSeriesInitHooks.length; j < l; j++) {
                $.jqplot.postSeriesInitHooks[j].call(this.series[i], target, this.data, this.options.seriesDefaults, this.options.series[i], this);
            }

            for (j = 0, l = this.postSeriesInitHooks.hooks.length; j < l; j++) {
                this.postSeriesInitHooks.hooks[j].call(this.series[i], target, this.data, this.options.seriesDefaults, this.options.series[i], this);
            }

            this._sumy += this.series[i]._sumy;
            this._sumx += this.series[i]._sumx;

        }

        for (i = 0, l = _axisNames.length; i < l; i++) {

            name = _axisNames[i];
            axis = this.axes[name];
            axis._plotDimensions = this._plotDimensions;
            axis.init();

            if (this.axes[name].borderColor === null) {
                if (name.charAt(0) !== 'x' && axis.useSeriesColor === true && axis.show) {
                    axis.borderColor = axis._series[0].color;
                } else {
                    axis.borderColor = this.grid.borderColor;
                }
            }
        }

        if (this.sortData) {
            sortData(this.series);
        }

        this.grid.init();
        this.grid._axes = this.axes;

        this.legend._series = this.series;

        for (i = 0, l = $.jqplot.postInitHooks.length; i < l; i++) {
            $.jqplot.postInitHooks[i].call(this, target, this.data, options);
        }

        for (i = 0, l = this.postInitHooks.hooks.length; i < l; i++) {
            this.postInitHooks.hooks[i].call(this, target, this.data, options);
        }

    };

    /**
     * method: resetAxesScale
     * Reset the specified axes min, max, numberTicks and tickInterval properties to null
     * or reset these properties on all axes if no list of axes is provided.
     *
     * Parameters:
     * @param {boolean} axes - Boolean to reset or not reset all axes or an array or object of axis names to reset.
     * @param {object} options - Options to reset.
     */
    JqPlot.prototype.resetAxesScale = function (axes, options) {
        var opts = options || {},
            ax = axes || this.axes,
            i,
            l,
            name;

        if (ax === true) {
            ax = this.axes;
        }

        if ($.isArray(ax)) {
            for (i = 0, l = ax.length; i < l; i++) {
                this.axes[ax[i]].resetScale(opts[ax[i]]);
            }
        } else if (typeof (ax) === 'object') {
            for (name in ax) {
                if (ax.hasOwnProperty(name)) {
                    this.axes[name].resetScale(opts[name]);
                }
            }
        }
    };

    /**
     * method: reInitialize
     * reinitialize plot for replotting.
     * not called directly.
     *
     * @param {number[]} data - data of plot.
     * @param {object} opts - options of plot.
     */
    JqPlot.prototype.reInitialize = function (data, opts) {

        // Plot should be visible and have a height and width.
        // If plot doesn't have height and width for some
        // reason, set it by other means.  Plot must not have
        // a display:none attribute, however.

        var options = $.extend(true, {}, this.options, opts),
            target = this.targetId.substr(1),
            tdata = (data === null) ? this.data : data,
            i,
            l,
            seriesLen,
            name,
            t,
            j,
            axis,
            el,
            tlen;

        for (i = 0, l = $.jqplot.preInitHooks.length; i < l; i++) {
            $.jqplot.preInitHooks[i].call(this, target, tdata, options);
        }

        for (i = 0, l = this.preInitHooks.hooks.length; i < l; i++) {
            this.preInitHooks.hooks[i].call(this, target, tdata, options);
        }

        this._height = this.target.height();
        this._width = this.target.width();

        if (this._height <= 0 || this._width <= 0 || !this._height || !this._width) {
            throw new Error("Target dimension not set");
        }

        this._plotDimensions.height = this._height;
        this._plotDimensions.width = this._width;
        this.grid._plotDimensions = this._plotDimensions;
        this.title._plotDimensions = this._plotDimensions;
        this.baseCanvas._plotDimensions = this._plotDimensions;
        this.eventCanvas._plotDimensions = this._plotDimensions;
        this.legend._plotDimensions = this._plotDimensions;

        for (i = 0, l = _axisNames.length; i < l; i++) {

            name = _axisNames[i];
            axis = this.axes[name];

            // Memory Leaks patch : clear ticks elements
            t = axis._ticks;

            for (j = 0, tlen = t.length; j < tlen; j++) {
                el = t[j]._elem;
                if (el) {
                    // if canvas renderer
                    if ($.jqplot.use_excanvas && window.G_vmlCanvasManager.uninitElement) {
                        window.G_vmlCanvasManager.uninitElement(el.get(0));
                    }
                    el.emptyForce();
                    el = null;
                    t._elem = null;
                }
            }
            t = null;

            delete axis.ticks;
            delete axis._ticks;
            this.axes[name] = new Axis(name);
            this.axes[name]._plotWidth = this._width;
            this.axes[name]._plotHeight = this._height;
        }

        if (data) {
            if (options.dataRenderer && $.isFunction(options.dataRenderer)) {
                if (options.dataRendererOptions) {
                    this.dataRendererOptions = options.dataRendererOptions;
                }
                this.dataRenderer = options.dataRenderer;
                data = this.dataRenderer(data, this, this.dataRendererOptions);
            }

            // make a copy of the data
            this.data = $.extend(true, [], data);
        }

        if (opts) {
            this.parseOptions(options);
        }

        this.title._plotWidth = this._width;

        if (this.textColor) {
            this.target.css('color', this.textColor);
        }
        if (this.fontFamily) {
            this.target.css('font-family', this.fontFamily);
        }
        if (this.fontSize) {
            this.target.css('font-size', this.fontSize);
        }

        this.title.init();
        this.legend.init();
        this._sumy = 0;
        this._sumx = 0;

        this.seriesStack = [];
        this.previousSeriesStack = [];

        this.computePlotData();

        for (i = 0, seriesLen = this.series.length; i < seriesLen; i++) {

            // set default stacking order for series canvases
            this.seriesStack.push(i);
            this.previousSeriesStack.push(i);
            this.series[i].shadowCanvas._plotDimensions = this._plotDimensions;
            this.series[i].canvas._plotDimensions = this._plotDimensions;

            for (j = 0, l = $.jqplot.preSeriesInitHooks.length; j < l; j++) {
                $.jqplot.preSeriesInitHooks[j].call(this.series[i], target, this.data, this.options.seriesDefaults, this.options.series[i], this);
            }

            for (j = 0, l = this.preSeriesInitHooks.hooks.length; j < l; j++) {
                this.preSeriesInitHooks.hooks[j].call(this.series[i], target, this.data, this.options.seriesDefaults, this.options.series[i], this);
            }

            // this.populatePlotData(this.series[i], i);
            this.series[i]._plotDimensions = this._plotDimensions;
            this.series[i].init(i, this.grid.borderWidth, this);

            for (j = 0, l = $.jqplot.postSeriesInitHooks.length; j < l; j++) {
                $.jqplot.postSeriesInitHooks[j].call(this.series[i], target, this.data, this.options.seriesDefaults, this.options.series[i], this);
            }

            for (j = 0, l = this.postSeriesInitHooks.hooks.length; j < l; j++) {
                this.postSeriesInitHooks.hooks[j].call(this.series[i], target, this.data, this.options.seriesDefaults, this.options.series[i], this);
            }

            this._sumy += this.series[i]._sumy;
            this._sumx += this.series[i]._sumx;
        }

        for (i = 0, l = _axisNames.length; i < l; i++) {

            name = _axisNames[i];
            axis = this.axes[name];

            axis._plotDimensions = this._plotDimensions;
            axis.init();

            if (axis.borderColor === null) {
                if (name.charAt(0) !== 'x' && axis.useSeriesColor === true && axis.show) {
                    axis.borderColor = axis._series[0].color;
                } else {
                    axis.borderColor = this.grid.borderColor;
                }
            }
        }

        if (this.sortData) {
            sortData(this.series);
        }

        this.grid.init();
        this.grid._axes = this.axes;

        this.legend._series = this.series;

        for (i = 0, l = $.jqplot.postInitHooks.length; i < l; i++) {
            $.jqplot.postInitHooks[i].call(this, target, this.data, options);
        }

        for (i = 0, l = this.postInitHooks.hooks.length; i < l; i++) {
            this.postInitHooks.hooks[i].call(this, target, this.data, options);
        }
    };

    /**
     * method: quickInit
     *
     * Quick reinitialization plot for replotting.
     * Does not parse options ore recreate axes and series.
     * not called directly.
     */
    JqPlot.prototype.quickInit = function () {

        var ax,
            name,
            i,
            j,
            l,
            t,
            el;

        // Plot should be visible and have a height and width.
        // If plot doesn't have height and width for some
        // reason, set it by other means.  Plot must not have
        // a display:none attribute, however.

        this._height = this.target.height();
        this._width = this.target.width();

        if (this._height <= 0 || this._width <= 0 || !this._height || !this._width) {
            throw new Error("Target dimension not set");
        }

        this._plotDimensions.height = this._height;
        this._plotDimensions.width = this._width;
        this.grid._plotDimensions = this._plotDimensions;
        this.title._plotDimensions = this._plotDimensions;
        this.baseCanvas._plotDimensions = this._plotDimensions;
        this.eventCanvas._plotDimensions = this._plotDimensions;
        this.legend._plotDimensions = this._plotDimensions;

        for (ax in this.axes) {
            if (this.axes.hasOwnProperty(ax)) {
                this.axes[ax]._plotWidth = this._width;
                this.axes[ax]._plotHeight = this._height;
            }
        }

        this.title._plotWidth = this._width;

        if (this.textColor) {
            this.target.css('color', this.textColor);
        }
        if (this.fontFamily) {
            this.target.css('font-family', this.fontFamily);
        }
        if (this.fontSize) {
            this.target.css('font-size', this.fontSize);
        }

        this._sumy = 0;
        this._sumx = 0;
        this.computePlotData();

        for (i = 0, l = this.series.length; i < l; i++) {

            // this.populatePlotData(this.series[i], i);
            if (this.series[i]._type === 'line' && this.series[i].renderer.bands.show) {
                this.series[i].renderer.initBands.call(this.series[i], this.series[i].renderer.options, this);
            }

            this.series[i]._plotDimensions = this._plotDimensions;
            this.series[i].canvas._plotDimensions = this._plotDimensions;

            //this.series[i].init(i, this.grid.borderWidth);
            this._sumy += this.series[i]._sumy;
            this._sumx += this.series[i]._sumx;

        }

        for (j = 0; j < 12; j++) {

            name = _axisNames[j];

            // Memory Leaks patch : clear ticks elements
            t = this.axes[name]._ticks;

            for (i = 0, l = t.length; i < l; i++) {
                el = t[i]._elem;
                if (el) {
                    // if canvas renderer
                    if ($.jqplot.use_excanvas && window.G_vmlCanvasManager.uninitElement) {
                        window.G_vmlCanvasManager.uninitElement(el.get(0));
                    }
                    el.emptyForce();
                    el = null;
                    t._elem = null;
                }
            }
            t = null;

            this.axes[name]._plotDimensions = this._plotDimensions;
            this.axes[name]._ticks = [];
            // this.axes[name].renderer.init.call(this.axes[name], {});
        }

        if (this.sortData) {
            sortData(this.series);
        }

        this.grid._axes = this.axes;

        this.legend._series = this.series;
    };

    /**
     *
     */
    JqPlot.prototype.computePlotData = function () {

        var series,
            index,
            i,
            l,
            j,
            cd = [],
            plotValues = {},
            sidx,
            k,
            cdl,
            temp,
            prevval,
            dtlen;

        this._plotData = [];
        this._stackData = [];

        for (index = 0, l = this.series.length; index < l; index++) {

            series = this.series[index];

            this._plotData.push([]);
            this._stackData.push([]);

            cd = series.data;

            this._plotData[index] = $.extend(true, [], cd);
            this._stackData[index] = $.extend(true, [], cd);

            series._plotData = this._plotData[index];
            series._stackData = this._stackData[index];

            plotValues = {x: [], y: []};

            if (this.stackSeries && !series.disableStack) {

                series._stack = true;

                ///////////////////////////
                // have to check for nulls
                ///////////////////////////
                sidx = (series._stackAxis === 'x') ? 0 : 1;

                for (k = 0, cdl = cd.length; k < cdl; k++) {

                    temp = cd[k][sidx];

                    if (temp === null) {
                        temp = 0;
                    }

                    this._plotData[index][k][sidx] = temp;
                    this._stackData[index][k][sidx] = temp;

                    if (index > 0) {
                        j = index;
                        while (j--) {
                            prevval = this._plotData[j][k][sidx];
                            // only need to sum up the stack axis column of data
                            // and only sum if it is of same sign.
                            // if previous series isn't same sign, keep looking
                            // at earlier series untill we find one of same sign.
                            if (temp * prevval >= 0) {
                                this._plotData[index][k][sidx] += prevval;
                                this._stackData[index][k][sidx] += prevval;
                                break;
                            }
                        }
                    }
                }

            } else {
                for (i = 0, dtlen = series.data.length; i < dtlen; i++) {
                    plotValues.x.push(series.data[i][0]);
                    plotValues.y.push(series.data[i][1]);
                }
                this._stackData.push(series.data);
                this.series[index]._stackData = series.data;
                this._plotData.push(series.data);
                series._plotData = series.data;
                series._plotValues = plotValues;
            }

            if (index > 0) {
                series._prevPlotData = this.series[index - 1]._plotData;
            }

            series._sumy = 0;
            series._sumx = 0;

            for (i = series.data.length - 1; i > -1; i--) {
                series._sumy += series.data[i][1];
                series._sumx += series.data[i][0];
            }
        }

    };

    /**
     * Populates the _stackData and _plotData arrays for the plot and the series.
     * @param {object[]} series - array object.
     * @param {number} index - index of the serie.
     */
    JqPlot.prototype.populatePlotData = function (series, index) {

        var plotValues = {x: [], y: []},
            sidx,
            temp,
            plotdata,
            tempx,
            tempy,
            dval,
            stackval,
            comparator,
            i,
            j,
            cd,
            l,
            k;

        // if a stacked chart, compute the stacked data
        this._plotData = [];
        this._stackData = [];

        series._stackData = [];
        series._plotData = [];

        if (this.stackSeries && !series.disableStack) {

            series._stack = true;

            sidx = (series._stackAxis === 'x') ? 0 : 1;
            // var idx = sidx ? 0 : 1;
            // push the current data into stackData
            //this._stackData.push(this.series[i].data);
            temp = $.extend(true, [], series.data);
            // create the data that will be plotted for this series
            plotdata = $.extend(true, [], series.data);

            // for first series, nothing to add to stackData.
            for (j = 0; j < index; j++) {
                cd = this.series[j].data;
                for (k = 0, l = cd.length; k < l; k++) {
                    dval = cd[k];
                    tempx = (dval[0] !== null) ? dval[0] : 0;
                    tempy = (dval[1] !== null) ? dval[1] : 0;
                    temp[k][0] += tempx;
                    temp[k][1] += tempy;
                    stackval = (sidx) ? tempy : tempx;
                    // only need to sum up the stack axis column of data
                    // and only sum if it is of same sign.
                    if (series.data[k][sidx] * stackval >= 0) {
                        plotdata[k][sidx] += stackval;
                    }
                }
            }

            for (i = 0, l = plotdata.length; i < l; i++) {
                plotValues.x.push(plotdata[i][0]);
                plotValues.y.push(plotdata[i][1]);
            }

            this._plotData.push(plotdata);
            this._stackData.push(temp);

            series._stackData = temp;
            series._plotData = plotdata;
            series._plotValues = plotValues;

        } else {

            for (i = 0, l = series.data.length; i < l; i++) {
                plotValues.x.push(series.data[i][0]);
                plotValues.y.push(series.data[i][1]);
            }

            this._stackData.push(series.data);
            this.series[index]._stackData = series.data;
            this._plotData.push(series.data);

            series._plotData = series.data;
            series._plotValues = plotValues;

        }

        if (index > 0) {
            series._prevPlotData = this.series[index - 1]._plotData;
        }

        series._sumy = 0;
        series._sumx = 0;

        for (i = series.data.length - 1; i > -1; i--) {
            series._sumy += series.data[i][1];
            series._sumx += series.data[i][0];
        }
    };

    /**
     * @param {object} options options object to parse.
     */
    JqPlot.prototype.parseOptions = function (options) {

        var i = 0,
            j = 0,
            l = 0,
            dataLen = 0,
            opts,
            temp = ['series1', 'series2', 'color', 'baseSeries', 'fill'],
            tempi,
            n,
            axis,
            normalizeData = function (data, dir, start) {
                // return data as an array of point arrays,
                // in form [[x1,y1...], [x2,y2...], ...]
                var temp = [],
                    i,
                    l,
                    j;

                dir = dir || 'vertical';

                if (!$.isArray(data[0])) {
                    // we have a series of scalars.  One line with just y values.
                    // turn the scalar list of data into a data array of form:
                    // [[1, data[0]], [2, data[1]], ...]
                    for (i = 0, l = data.length; i < l; i++) {
                        if (dir === 'vertical') {
                            temp.push([start + i, data[i]]);
                        } else {
                            temp.push([data[i], start + i]);
                        }
                    }
                } else {
                    // we have a properly formatted data series, copy it.
                    $.extend(true, temp, data);
                }
                return temp;
            },
            colorIndex = 0,
            sopts,
            dir = 'vertical';

        for (i = 0, l = this.preParseOptionsHooks.hooks.length; i < l; i++) {
            this.preParseOptionsHooks.hooks[i].call(this, options);
        }

        for (i = 0, l = $.jqplot.preParseOptionsHooks.length; i < l; i++) {
            $.jqplot.preParseOptionsHooks[i].call(this, options);
        }

        this.options = $.extend(true, {}, this.defaults, options);
        opts = this.options;

        this.animate = opts.animate;
        this.animateReplot = opts.animateReplot;
        this.stackSeries = opts.stackSeries;

        if ($.isPlainObject(opts.fillBetween)) {
            for (i = 0, l = temp.length; i < l; i++) {
                tempi = temp[i];
                if (opts.fillBetween[tempi] !== null) {
                    this.fillBetween[tempi] = opts.fillBetween[tempi];
                }
            }
        }

        if (opts.seriesColors) {
            this.seriesColors = opts.seriesColors;
        }
        if (opts.negativeSeriesColors) {
            this.negativeSeriesColors = opts.negativeSeriesColors;
        }
        if (opts.captureRightClick) {
            this.captureRightClick = opts.captureRightClick;
        }

        this.defaultAxisStart = (options && typeof options.defaultAxisStart !== "undefined") ? options.defaultAxisStart : this.defaultAxisStart;

        this.colorGenerator.setColors(this.seriesColors);
        this.negativeColorGenerator.setColors(this.negativeSeriesColors);

        // var cg = new this.colorGenerator(this.seriesColors);
        // var ncg = new this.colorGenerator(this.negativeSeriesColors);
        // this._gridPadding = this.options.gridPadding;
        $.extend(true, this._gridPadding, opts.gridPadding);

        this.sortData = (typeof opts.sortData !== "undefined") ? opts.sortData : this.sortData;

        for (i = 0; i < 12; i++) {
            n = _axisNames[i];
            axis = this.axes[n];
            axis._options = $.extend(true, {}, opts.axesDefaults, opts.axes[n]);
            $.extend(true, axis, opts.axesDefaults, opts.axes[n]);
            axis._plotWidth = this._width;
            axis._plotHeight = this._height;
        }
        // if (this.data.length == 0) {
        //     this.data = [];
        //     for (var i=0; i<this.options.series.length; i++) {
        //         this.data.push(this.options.series.data);
        //     }
        // }

        this.series = [];

        for (i = 0, dataLen = this.data.length; i < dataLen; i++) {

            sopts = $.extend(true, {index: i}, { seriesColors: this.seriesColors, negativeSeriesColors: this.negativeSeriesColors}, this.options.seriesDefaults, this.options.series[i], {rendererOptions: {animation: {show:  this.animate}}});
            // pass in options in case something needs set prior to initialization.
            temp = new Series(sopts);

            for (j = 0, l = $.jqplot.preParseSeriesOptionsHooks.length; j < l; j++) {
                $.jqplot.preParseSeriesOptionsHooks[j].call(temp, this.options.seriesDefaults, this.options.series[i]);
            }

            for (j = 0, l = this.preParseSeriesOptionsHooks.hooks.length; j < l; j++) {
                this.preParseSeriesOptionsHooks.hooks[j].call(temp, this.options.seriesDefaults, this.options.series[i]);
            }

            // Now go back and apply the options to the series.  Really should just do this during initializaiton, but don't want to
            // mess up preParseSeriesOptionsHooks at this point.
            $.extend(true, temp, sopts);

            if (temp.renderer === $.jqplot.BarRenderer && temp.rendererOptions && temp.rendererOptions.barDirection === 'horizontal') {
                dir = 'horizontal';
                temp._stackAxis = 'x';
                temp._primaryAxis = '_yaxis';
            }

            temp.data = normalizeData(this.data[i], dir, this.defaultAxisStart);

            switch (temp.xaxis) {
            case 'xaxis':
                temp._xaxis = this.axes.xaxis;
                break;
            case 'x2axis':
                temp._xaxis = this.axes.x2axis;
                break;
            default:
                break;
            }

            temp._yaxis = this.axes[temp.yaxis];
            temp._xaxis._series.push(temp);
            temp._yaxis._series.push(temp);

            if (temp.show) {
                temp._xaxis.show = true;
                temp._yaxis.show = true;
            } else {
                if (temp._xaxis.scaleToHiddenSeries) {
                    temp._xaxis.show = true;
                }
                if (temp._yaxis.scaleToHiddenSeries) {
                    temp._yaxis.show = true;
                }
            }

            // // parse the renderer options and apply default colors if not provided
            // if (!temp.color && temp.show != false) {
            //     temp.color = cg.next();
            //     colorIndex = cg.getIndex() - 1;;
            // }
            // if (!temp.negativeColor && temp.show != false) {
            //     temp.negativeColor = ncg.get(colorIndex);
            //     ncg.setIndex(colorIndex);
            // }
            if (!temp.label) {
                temp.label = 'Series ' + (i + 1).toString();
            }

            // temp.rendererOptions.show = temp.show;
            // $.extend(true, temp.renderer, {color:this.seriesColors[i]}, this.rendererOptions);
            this.series.push(temp);

            for (j = 0, l = $.jqplot.postParseSeriesOptionsHooks.length; j < l; j++) {
                $.jqplot.postParseSeriesOptionsHooks[j].call(this.series[i], this.options.seriesDefaults, this.options.series[i]);
            }

            for (j = 0, l = this.postParseSeriesOptionsHooks.hooks.length; j < l; j++) {
                this.postParseSeriesOptionsHooks.hooks[j].call(this.series[i], this.options.seriesDefaults, this.options.series[i]);
            }
        }

        // copy the grid and title options into this object.
        $.extend(true, this.grid, this.options.grid);

        // if axis border properties aren't set, set default.
        for (i = 0, l = _axisNames.length; i < l; i++) {
            n = _axisNames[i];
            axis = this.axes[n];
            if (axis.borderWidth === null) {
                axis.borderWidth = this.grid.borderWidth;
            }
        }

        if (typeof this.options.title === 'string') {
            this.title.text = this.options.title;
        } else if (typeof this.options.title === 'object') {
            $.extend(true, this.title, this.options.title);
        }

        this.title._plotWidth = this._width;
        this.legend.setOptions(this.options.legend);

        for (i = 0, l = $.jqplot.postParseOptionsHooks.length; i < l; i++) {
            $.jqplot.postParseOptionsHooks[i].call(this, options);
        }

        for (i = 0, l = this.postParseOptionsHooks.hooks.length; i < l; i++) {
            this.postParseOptionsHooks.hooks[i].call(this, options);
        }

    };

    /**
     * method: destroy
     * Releases all resources occupied by the plot
     */
    JqPlot.prototype.destroy = function () {

        var e,
            events;

        this.canvasManager.freeAllCanvases();

        if (this.eventCanvas && this.eventCanvas._elem) {
            this.eventCanvas._elem.unbind();
        }

        events = $._data(this.target[0], "events");

        // Unbind events
        // For example, Cursor.zoomProxy bind jqplotZoom and jqplotResetZoom to element
        for (e in events) {
            if (events.hasOwnProperty(e)) {
                this.target.unbind(e);
            }
        }

        // Couple of posts on Stack Overflow indicate that empty() doesn't
        // always cear up the dom and release memory.  Sometimes setting
        // innerHTML property to null is needed.  Particularly on IE, may
        // have to directly set it to null, bypassing $.
        this.target.empty();

        this.target[0].innerHTML = '';

    };

    /**
     * method: replot
     * Does a reinitialization of the plot followed by
     * a redraw.  Method could be used to interactively
     * change plot characteristics and then replot.
     *
     * Parameters:
     * options - Options used for replotting.
     *
     * Properties:
     * @param {boolean} clear - false to not clear (empty) the plot container before replotting (default: true).
     * @param {boolean} resetAxes - true to reset all axes min, max, numberTicks and tickInterval setting so axes will rescale themselves.
     *              optionally pass in list of axes to reset (e.g. ['xaxis', 'y2axis']) (default: false).
     */
    JqPlot.prototype.replot = function (options) {
        var opts =  options || {},
            data = opts.data || null,
            clear = (opts.clear === false) ? false : true,
            resetAxes = opts.resetAxes || false;

        delete opts.data;
        delete opts.clear;
        delete opts.resetAxes;

        this.target.trigger('jqplotPreReplot');

        if (clear) {
            this.destroy();
        }

        // if have data or other options, full reinit.
        // otherwise, quickinit.
        if (data || !$.isEmptyObject(opts)) {
            this.reInitialize(data, opts);
        } else {
            this.quickInit();
        }

        if (resetAxes) {
            this.resetAxesScale(resetAxes, opts.axes);
        }

        this.draw();

        this.target.trigger('jqplotPostReplot');

    };

    /**
     * method: redraw
     * Empties the plot target div and redraws the plot.
     * This enables plot data and properties to be changed
     * and then to comletely clear the plot and redraw.
     * redraw *will not* reinitialize any plot elements.
     * That is, axes will not be autoscaled and defaults
     * will not be reapplied to any plot elements.  redraw
     * is used primarily with zooming.
     *
     * @param {boolean} clear false to not clear (empty) the plot container before redrawing (default: true).
     */
    JqPlot.prototype.redraw = function (clear) {
        var i,
            ax,
            tsl;
        clear = (clear !== null) ? clear : true;
        this.target.trigger('jqplotPreRedraw');
        if (clear) {
            this.canvasManager.freeAllCanvases();
            this.eventCanvas._elem.unbind();
            // Dont think I bind any events to the target, this shouldn't be necessary.
            // It will remove user's events.
            // this.target.unbind();
            this.target.empty();
        }
        for (ax in this.axes) {
            if (this.axes.hasOwnProperty(ax)) {
                this.axes[ax]._ticks = [];
            }
        }
        this.computePlotData();
        // for (var i=0; i<this.series.length; i++) {
        //     this.populatePlotData(this.series[i], i);
        // }
        this._sumy = 0;
        this._sumx = 0;
        for (i = 0, tsl = this.series.length; i < tsl; i++) {
            this._sumy += this.series[i]._sumy;
            this._sumx += this.series[i]._sumx;
        }
        this.draw();
        this.target.trigger('jqplotPostRedraw');
    };

    /**
     * method: draw
     * Draws all elements of the plot into the container.
     * Does not clear the container before drawing.
     */
    JqPlot.prototype.draw = function () {

        var i,
            j,
            l,
            tempseries,
            legendElem,
            gridPadding,
            ax,
            name,
            ra = ['y2axis', 'y3axis', 'y4axis', 'y5axis', 'y6axis', 'y7axis', 'y8axis', 'y9axis'],
            rapad = [0, 0, 0, 0, 0, 0, 0, 0],
            gpr = 0,
            n,
            gdw,
            gdh,
            widthAdj,
            heightAdj,
            positions = ['top', 'bottom', 'left', 'right'],
            legendPadding,
            ltemp,
            series,
            seriesLength,
            fb,
            temps,
            tempr,
            sel,
            _els,
            title;

        if (this.drawIfHidden || this.target.is(':visible')) {

            this.target.trigger('jqplotPreDraw');

            for (i = 0, l = $.jqplot.preDrawHooks.length; i < l; i++) {
                $.jqplot.preDrawHooks[i].call(this);
            }

            for (i = 0, l = this.preDrawHooks.hooks.length; i < l; i++) {
                this.preDrawHooks.hooks[i].apply(this, this.preDrawSeriesHooks.args[i]);
            }

            // create an underlying canvas to be used for special features.
            this.target.append(this.baseCanvas.createElement({left: 0, right: 0, top: 0, bottom: 0}, 'jqplot-base-canvas', null, this));
            this.baseCanvas.setContext();

            if (this.options.background) {
                this.baseCanvas._ctx.fillStyle = this.options.background;
                this.baseCanvas._ctx.fillRect(0, 0, this.baseCanvas._ctx.canvas.width, this.baseCanvas._ctx.canvas.height);
            }

            title = this.title.draw();

            this.target.append(title);
            this.title.pack({top: 0, left: 0});

            // make room  for the legend between the grid and the edge.
            // pass a dummy offsets object and a reference to the plot.
            legendElem = this.legend.draw({}, this);

            gridPadding = {top: 0, left: 0, bottom: 0, right: 0};

            if (legendElem && this.legend.placement === "outsideGrid") {
                // temporarily append the legend to get dimensions
                this.target.append(legendElem);
                switch (this.legend.location) {
                case 'n':
                    gridPadding.top += this.legend.getHeight();
                    break;
                case 's':
                    gridPadding.bottom += this.legend.getHeight();
                    break;
                case 'ne':
                case 'e':
                case 'se':
                    gridPadding.right += this.legend.getWidth();
                    break;
                case 'nw':
                case 'w':
                case 'sw':
                    gridPadding.left += this.legend.getWidth();
                    break;
                default:  // same as 'ne'
                    gridPadding.right += this.legend.getWidth();
                    break;
                }
                legendElem = legendElem.detach();
            }

            ax = this.axes;

            // draw the yMidAxis first, so xaxis of pyramid chart can adjust itself if needed.
            for (i = 0; i < 12; i++) {
                name = _axisNames[i];
                this.target.append(ax[name].draw(this.baseCanvas._ctx, this));
                ax[name].set();
            }

            if (ax.yaxis.show) {
                gridPadding.left += ax.yaxis.getWidth();
            }

            for (n = 0; n < 8; n++) {
                if (ax[ra[n]].show) {
                    gpr += ax[ra[n]].getWidth();
                    rapad[n] = gpr;
                }
            }

            gridPadding.right += gpr;

            if (ax.x2axis.show) {
                gridPadding.top += ax.x2axis.getHeight();
            }
            if (this.title.show) {
                gridPadding.top += this.title.getHeight();
            }
            if (ax.xaxis.show) {
                gridPadding.bottom += ax.xaxis.getHeight();
            }

            // end of gridPadding adjustments.

            // if user passed in gridDimensions option, check against calculated gridPadding
            if (this.options.gridDimensions && $.isPlainObject(this.options.gridDimensions)) {

                gdw = parseInt(this.options.gridDimensions.width, 10) || 0;
                gdh = parseInt(this.options.gridDimensions.height, 10) || 0;
                widthAdj = (this._width - gridPadding.left - gridPadding.right - gdw) / 2;
                heightAdj = (this._height - gridPadding.top - gridPadding.bottom - gdh) / 2;

                if (heightAdj >= 0 && widthAdj >= 0) {
                    gridPadding.top += heightAdj;
                    gridPadding.bottom += heightAdj;
                    gridPadding.left += widthAdj;
                    gridPadding.right += widthAdj;
                }
            }

            for (i = 0, l = positions.length; i < l; i++) {
                if (this._gridPadding[positions[i]] === null && gridPadding[positions[i]] > 0) {
                    this._gridPadding[positions[i]] = gridPadding[positions[i]];
                } else if (this._gridPadding[positions[i]] === null) {
                    this._gridPadding[positions[i]] = this._defaultGridPadding[positions[i]];
                }
            }

            legendPadding = this._gridPadding;

            if (this.legend.placement === 'outsideGrid') {

                legendPadding = {
                    top: this.title.getHeight(),
                    left: 0,
                    right: 0,
                    bottom: 0
                };

                if (this.legend.location === 's') {
                    legendPadding.left = this._gridPadding.left;
                    legendPadding.right = this._gridPadding.right;
                }
            }

            ax.xaxis.pack({position: 'absolute', bottom: this._gridPadding.bottom - ax.xaxis.getHeight(), left: 0, width: this._width}, {min: this._gridPadding.left, max: this._width - this._gridPadding.right});

            ax.yaxis.pack({position: 'absolute', top: 0, left: this._gridPadding.left - ax.yaxis.getWidth(), height: this._height}, {min: this._height - this._gridPadding.bottom, max: this._gridPadding.top});

            ax.x2axis.pack({position: 'absolute', top: this._gridPadding.top - ax.x2axis.getHeight(), left: 0, width: this._width}, {min: this._gridPadding.left, max: this._width - this._gridPadding.right});

            for (i = 8; i > 0; i--) {
                ax[ra[i - 1]].pack({position: 'absolute', top: 0, right: this._gridPadding.right - rapad[i - 1]}, {min: this._height - this._gridPadding.bottom, max: this._gridPadding.top});
            }

            ltemp = (this._width - this._gridPadding.left - this._gridPadding.right) / 2.0 + this._gridPadding.left - ax.yMidAxis.getWidth() / 2.0;

            ax.yMidAxis.pack({position: 'absolute', top: 0, left: ltemp, zIndex: 9, textAlign: 'center'}, {min: this._height - this._gridPadding.bottom, max: this._gridPadding.top});

            this.target.append(this.grid.createElement(this._gridPadding, this));

            this.grid.draw();

            for (i = 0, l = $.jqplot.preDrawAllSeriesHooks.length; i < l; i++) {
                $.jqplot.preDrawAllSeriesHooks[i].call(this);
            }

            for (i = 0, l = this.preDrawAllSeriesHooks.hooks.length; i < l; i++) {
                this.preDrawAllSeriesHooks.hooks[i].apply(this, this.preDrawAllSeriesHooks.args[i]);
            }

            // Need to use filled canvas to capture events in IE.
            // Also, canvas seems to block selection of other elements in document on FF.
            this.target.append(this.bellowSeriesCanvas.createElement(this._gridPadding, 'jqplot-bellow-series-canvas', null, this));
            this.bellowSeriesCanvas.setContext();
            this.bellowSeriesCanvas._ctx.fillStyle = 'rgba(0, 0, 0 ,0)';
            this.bellowSeriesCanvas._ctx.fillRect(0, 0, this.bellowSeriesCanvas._ctx.canvas.width, this.bellowSeriesCanvas._ctx.canvas.height);

            series = this.series;
            seriesLength = series.length;

            // put the shadow canvases behind the series canvases so shadows don't overlap on stacked bars.
            for (i = 0; i < seriesLength; i++) {
                // draw series in order of stacking.  This affects only
                // order in which canvases are added to dom.
                j = this.seriesStack[i];
                this.target.append(series[j].shadowCanvas.createElement(this._gridPadding, 'jqplot-series-shadowCanvas', null, this));
                series[j].shadowCanvas.setContext();
                series[j].shadowCanvas._elem.data('seriesIndex', j);
            }

            for (i = 0; i < seriesLength; i++) {
                // draw series in order of stacking.  This affects only
                // order in which canvases are added to dom.
                j = this.seriesStack[i];
                this.target.append(series[j].canvas.createElement(this._gridPadding, 'jqplot-series-canvas', null, this));
                series[j].canvas.setContext();
                series[j].canvas._elem.data('seriesIndex', j);
            }
            // Need to use filled canvas to capture events in IE.
            // Also, canvas seems to block selection of other elements in document on FF.
            this.target.append(this.eventCanvas.createElement(this._gridPadding, 'jqplot-event-canvas', null, this));
            this.eventCanvas.setContext();
            this.eventCanvas._ctx.fillStyle = 'rgba(0, 0, 0, 0)';
            this.eventCanvas._ctx.fillRect(0, 0, this.eventCanvas._ctx.canvas.width, this.eventCanvas._ctx.canvas.height);

            // bind custom event handlers to regular events.
            this.bindCustomEvents();

            // draw legend before series if the series needs to know the legend dimensions.
            if (this.legend.preDraw) {
                this.eventCanvas._elem.before(legendElem);
                this.legend.pack(legendPadding);
                if (this.legend._elem) {
                    this.drawSeries({legendInfo: { location: this.legend.location, placement: this.legend.placement, width: this.legend.getWidth(), height: this.legend.getHeight(), xoffset: this.legend.xoffset, yoffset: this.legend.yoffset}});
                } else {
                    this.drawSeries();
                }
            } else {  // draw series before legend
                this.drawSeries();
                if (seriesLength) {
                    $(series[seriesLength - 1].canvas._elem).after(legendElem);
                }
                this.legend.pack(legendPadding);
            }

            // register event listeners on the overlay canvas
            for (i = 0, l = $.jqplot.eventListenerHooks.length; i < l; i++) {
                // in the handler, this will refer to the eventCanvas dom element.
                // make sure there are references back into plot objects.
                this.eventCanvas._elem.bind($.jqplot.eventListenerHooks[i][0], {plot: this}, $.jqplot.eventListenerHooks[i][1]);
            }

            // register event listeners on the overlay canvas
            for (i = 0, l = this.eventListenerHooks.hooks.length; i < l; i++) {
                // in the handler, this will refer to the eventCanvas dom element.
                // make sure there are references back into plot objects.
                this.eventCanvas._elem.bind(this.eventListenerHooks.hooks[i][0], {plot: this}, this.eventListenerHooks.hooks[i][1]);
            }

            fb = this.fillBetween;

            if (fb.fill && fb.series1 !== fb.series2 && fb.series1 < seriesLength && fb.series2 < seriesLength && series[fb.series1]._type === 'line' && series[fb.series2]._type === 'line') {
                this.doFillBetweenLines();
            }

            for (i = 0, l = $.jqplot.postDrawHooks.length; i < l; i++) {
                $.jqplot.postDrawHooks[i].call(this);
            }

            for (i = 0, l = this.postDrawHooks.hooks.length; i < l; i++) {
                this.postDrawHooks.hooks[i].apply(this, this.postDrawHooks.args[i]);
            }

            if (this.target.is(':visible')) {
                this._drawCount += 1;
            }

            // ughh.  ideally would hide all series then show them.
            for (i = 0; i < seriesLength; i++) {
                temps = series[i];
                tempr = temps.renderer;
                sel = '.jqplot-point-label.jqplot-series-' + i;
                if (tempr.animation && tempr.animation._supported && tempr.animation.show && (this._drawCount < 2 || this.animateReplot)) {
                    _els = this.target.find(sel);
                    _els.stop(true, true).hide();
                    temps.canvas._elem.stop(true, true).hide();
                    temps.shadowCanvas._elem.stop(true, true).hide();
                    temps.canvas._elem.jqplotEffect('blind', { mode: 'show', direction: tempr.animation.direction}, tempr.animation.speed);
                    temps.shadowCanvas._elem.jqplotEffect('blind', { mode: 'show', direction: tempr.animation.direction}, tempr.animation.speed);
                    _els.fadeIn(tempr.animation.speed * 0.8);
                }
            }
            _els = null;

            this.target.trigger('jqplotPostDraw', [this]);
        }
    };

    /**
     *
     */
    JqPlot.prototype.doFillBetweenLines = function () {

        var fb = this.fillBetween,
            sid1 = fb.series1,
            sid2 = fb.series2,
        // first series should always be lowest index
            id1 = (sid1 < sid2) ? sid1 : sid2,
            id2 = (sid2 >  sid1) ? sid2 : sid1,

            series1 = this.series[id1],
            series2 = this.series[id2],
            tempgd,
            gd,
            color,
            baseSeries,
            sr,
            opts;

        if (series2.renderer.smooth) {
            tempgd = series2.renderer._smoothedData.slice(0).reverse();
        } else {
            tempgd = series2.gridData.slice(0).reverse();
        }

        if (series1.renderer.smooth) {
            gd = series1.renderer._smoothedData.concat(tempgd);
        } else {
            gd = series1.gridData.concat(tempgd);
        }

        color = (fb.color !== null) ? fb.color : this.series[sid1].fillColor;
        baseSeries = (fb.baseSeries !== null) ? fb.baseSeries : id1;

        // now apply a fill to the shape on the lower series shadow canvas,
        // so it is behind both series.
        sr = this.series[baseSeries].renderer.shapeRenderer;
        opts = {fillStyle: color, fill: true, closePath: true};

        sr.draw(series1.shadowCanvas._ctx, gd, opts);

    };

    /**
     * Set the theme name on the plot.
     * @param {string} name theme name.
     */
    JqPlot.prototype.activateTheme = function (name) {
        this.themeEngine.activate(this, name);
    };

    /**
     * method: restoreOriginalSeriesOrder
     * This method requires jQuery 1.4+
     * Restore the series canvas order to its original order
     * when the plot was created.
     */
    JqPlot.prototype.restoreOriginalSeriesOrder = function () {

        var i,
            j,
            l,
            arr = [],
            serelem,
            shadelem;

        for (i = 0, l = this.series.length; i < l; i++) {
            arr.push(i);
        }

        if (this.seriesStack === arr) {
            return;
        }

        this.previousSeriesStack = this.seriesStack.slice(0);
        this.seriesStack = arr;

        for (i = 1; i < this.seriesStack.length; i++) {
            serelem = this.series[i].canvas._elem.detach();
            shadelem = this.series[i].shadowCanvas._elem.detach();
            this.series[i - 1].shadowCanvas._elem.after(shadelem);
            this.series[i - 1].canvas._elem.after(serelem);
        }

    };

    /**
     * method: restorePreviousSeriesOrder
     * This method requires jQuery 1.4+
     * Restore the series canvas order to its previous state.
     * Useful to put a series back where it belongs after moving
     * it to the front.
     */
    JqPlot.prototype.restorePreviousSeriesOrder = function () {

        var i,
            j,
            l,
            serelem,
            shadelem,
            temp,
            move,
            keep;

        // if no change, return.
        if (this.seriesStack === this.previousSeriesStack) {
            return;
        }

        for (i = 1, l = this.previousSeriesStack.length; i < l; i++) {
            move = this.previousSeriesStack[i];
            keep = this.previousSeriesStack[i - 1];
            serelem = this.series[move].canvas._elem.detach();
            shadelem = this.series[move].shadowCanvas._elem.detach();
            this.series[keep].shadowCanvas._elem.after(shadelem);
            this.series[keep].canvas._elem.after(serelem);
        }

        temp = this.seriesStack.slice(0);

        this.seriesStack = this.previousSeriesStack.slice(0);
        this.previousSeriesStack = temp;
    };

    /**
     * method: moveSeriesToBack
     * This method requires jQuery 1.4+
     * Moves the specified series canvas behind all other series canvases.
     *
     * @param {string} idx index of the serie to move to back. 0 based index of the series to move.  This will be the index of the series
     * as it was first passed into the jqplot function.
     */
    JqPlot.prototype.moveSeriesToBack = function (idx) {

        idx = parseInt(idx, 10);

        var stackIndex = $.inArray(idx, this.seriesStack),
            opidx,
            serelem,
            shadelem;

        // if already in back, return
        if (stackIndex === 0 || stackIndex === -1) {
            return;
        }

        opidx = this.seriesStack[0];
        serelem = this.series[idx].canvas._elem.detach();
        shadelem = this.series[idx].shadowCanvas._elem.detach();

        this.series[opidx].shadowCanvas._elem.before(shadelem);
        this.series[opidx].canvas._elem.before(serelem);
        this.previousSeriesStack = this.seriesStack.slice(0);
        this.seriesStack.splice(stackIndex, 1);
        this.seriesStack.unshift(idx);

    };

    /**
     * method: moveSeriesToFront
     * This method requires jQuery 1.4+
     * Moves the specified series canvas in front of all other series canvases.
     * This effectively "draws" the specified series on top of all other series,
     * although it is performed through DOM manipulation, no redrawing is performed.
     *
     * @param {string} idx index of the serie to move to front. 0 based index of the series to move.  This will be the index of the series
     * as it was first passed into the jqplot function.
     */
    JqPlot.prototype.moveSeriesToFront = function (idx) {
        var stackIndex,
            opidx,
            serelem,
            shadelem;
        idx = parseInt(idx, 10);
        stackIndex = $.inArray(idx, this.seriesStack);
        // if already in front, return
        if (stackIndex === -1) {
            return;
        }
        if (stackIndex === this.seriesStack.length - 1) {
            this.previousSeriesStack = this.seriesStack.slice(0);
            return;
        }
        opidx = this.seriesStack[this.seriesStack.length - 1];
        serelem = this.series[idx].canvas._elem.detach();
        shadelem = this.series[idx].shadowCanvas._elem.detach();
        this.series[opidx].shadowCanvas._elem.after(shadelem);
        this.series[opidx].canvas._elem.after(serelem);
        this.previousSeriesStack = this.seriesStack.slice(0);
        this.seriesStack.splice(stackIndex, 1);
        this.seriesStack.push(idx);
    };

    /**
     * method: drawSeries
     * Redraws all or just one series on the plot.  No axis scaling
     * is performed and no other elements on the plot are redrawn.
     * options is an options object to pass on to the series renderers.
     * It can be an empty object {}.  idx is the series index
     * to redraw if only one series is to be redrawn.
     * @param {object} options options' series
     * @param {number} idx Optional index of the serie to redraw.
     */
    JqPlot.prototype.drawSeries = function (options, idx) {

        var i,
            l,
            series,
            ctx;

        // if only one argument passed in and it is a number, use it ad idx.
        idx = (typeof (options) === "number" && idx === null) ? options : idx;
        options = (typeof (options) === "object") ? options : {};

        // draw specified series
        if (typeof idx !== "undefined") {
            series = this.series[idx];
            ctx = series.shadowCanvas._ctx;
            ctx.clearRect(0, 0, ctx.canvas.width, ctx.canvas.height);
            series.drawShadow(ctx, options, this);
            ctx = series.canvas._ctx;
            ctx.clearRect(0, 0, ctx.canvas.width, ctx.canvas.height);
            series.draw(ctx, options, this);
            if (series.renderer.constructor === $.jqplot.BezierCurveRenderer) {
                if (idx < this.series.length - 1) {
                    this.drawSeries(idx + 1);
                }
            }
        } else {
            // if call series drawShadow method first, in case all series shadows
            // should be drawn before any series.  This will ensure, like for
            // stacked bar plots, that shadows don't overlap series.
            for (i = 0; i < this.series.length; i++) {
                // first clear the canvas
                series = this.series[i];
                ctx = series.shadowCanvas._ctx;
                ctx.clearRect(0, 0, ctx.canvas.width, ctx.canvas.height);
                series.drawShadow(ctx, options, this);
                ctx = series.canvas._ctx;
                ctx.clearRect(0, 0, ctx.canvas.width, ctx.canvas.height);
                series.draw(ctx, options, this);
            }
        }
        options = idx = i = series = ctx = l = null;
    };

    /**
     * Event handler onMouseLeave on event canvas.
     * @param {object} ev event
     */
    JqPlot.prototype.onMouseLeave = function (ev) {
        var positions = getEventPosition(ev),
            p = ev.data.plot,
            evt = $.Event('jqplotMouseLeave');
        evt.pageX = ev.pageX;
        evt.pageY = ev.pageY;
        evt.relatedTarget = ev.relatedTarget;
        $(this).trigger(evt, [positions.gridPos, positions.dataPos, null, p]);
    };

    /**
     * Event handler onClick on event canvas.
     * @param {object} ev event
     */
    JqPlot.prototype.onClick = function (ev) {
        // Event passed in is normalized and will have data attribute.
        // Event passed out is unnormalized.
        var positions = getEventPosition(ev),
            p = ev.data.plot,
            neighbor = checkIntersection(positions.gridPos, p),
            evt = $.Event('jqplotClick');
        evt.pageX = ev.pageX;
        evt.pageY = ev.pageY;
        $(this).trigger(evt, [positions.gridPos, positions.dataPos, neighbor, p]);
    };

    /**
     * Event handler onDblClick on event canvas.
     * @param {object} ev event
     */
    JqPlot.prototype.onDblClick = function (ev) {
        // Event passed in is normalized and will have data attribute.
        // Event passed out is unnormalized.
        var positions = getEventPosition(ev),
            p = ev.data.plot,
            neighbor = checkIntersection(positions.gridPos, p),
            evt = $.Event('jqplotDblClick');
        evt.pageX = ev.pageX;
        evt.pageY = ev.pageY;
        $(this).trigger(evt, [positions.gridPos, positions.dataPos, neighbor, p]);
    };

    /**
     * Event handler onMouseDown on event canvas.
     * @param {object} ev event
     */
    JqPlot.prototype.onMouseDown = function (ev) {
        var positions = getEventPosition(ev),
            p = ev.data.plot,
            neighbor = checkIntersection(positions.gridPos, p),
            evt = $.Event('jqplotMouseDown');
        evt.pageX = ev.pageX;
        evt.pageY = ev.pageY;
        $(this).trigger(evt, [positions.gridPos, positions.dataPos, neighbor, p]);
    };

    /**
     * Event handler onMouseUp on event canvas.
     * @param {object} ev event
     */
    JqPlot.prototype.onMouseUp = function (ev) {
        var positions = getEventPosition(ev),
            evt = $.Event('jqplotMouseUp');
        evt.pageX = ev.pageX;
        evt.pageY = ev.pageY;
        $(this).trigger(evt, [positions.gridPos, positions.dataPos, null, ev.data.plot]);
    };

    /**
     * Event handler onRightClick on event canvas.
     * @param {object} ev event
     */
    JqPlot.prototype.onRightClick = function (ev) {
        var positions = getEventPosition(ev),
            p = ev.data.plot,
            neighbor = checkIntersection(positions.gridPos, p),
            evt;
        if (p.captureRightClick) {
            if (ev.which === 3) {
                evt = $.Event('jqplotRightClick');
                evt.pageX = ev.pageX;
                evt.pageY = ev.pageY;
                $(this).trigger(evt, [positions.gridPos, positions.dataPos, neighbor, p]);
            } else {
                evt = $.Event('jqplotMouseUp');
                evt.pageX = ev.pageX;
                evt.pageY = ev.pageY;
                $(this).trigger(evt, [positions.gridPos, positions.dataPos, neighbor, p]);
            }
        }
    };

    /**
     * Event handler onMouseMove on event canvas.
     * @param {object} ev event
     */
    JqPlot.prototype.onMouseMove = function (ev) {
        var positions = getEventPosition(ev),
            p = ev.data.plot,
            neighbor = checkIntersection(positions.gridPos, p),
            evt = $.Event('jqplotMouseMove');
        evt.pageX = ev.pageX;
        evt.pageY = ev.pageY;
        $(this).trigger(evt, [positions.gridPos, positions.dataPos, neighbor, p]);
    };

    /**
     * Event handler onMouseEnter on event canvas.
     * @param {object} ev event.
     */
    JqPlot.prototype.onMouseEnter = function (ev) {
        var positions = getEventPosition(ev),
            p = ev.data.plot,
            evt = $.Event('jqplotMouseEnter');
        evt.pageX = ev.pageX;
        evt.pageY = ev.pageY;
        evt.relatedTarget = ev.relatedTarget;
        $(this).trigger(evt, [positions.gridPos, positions.dataPos, null, p]);
    };

    /**
     * Bind events attached to canvas.
     */
    JqPlot.prototype.bindCustomEvents = function () {
        this.eventCanvas._elem.bind('click', {plot: this}, this.onClick);
        this.eventCanvas._elem.bind('dblclick', {plot: this}, this.onDblClick);
        this.eventCanvas._elem.bind('mousedown', {plot: this}, this.onMouseDown);
        this.eventCanvas._elem.bind('mousemove', {plot: this}, this.onMouseMove);
        this.eventCanvas._elem.bind('mouseenter', {plot: this}, this.onMouseEnter);
        this.eventCanvas._elem.bind('mouseleave', {plot: this}, this.onMouseLeave);
        if (this.captureRightClick) {
            this.eventCanvas._elem.bind('mouseup', {plot: this}, this.onRightClick);
            this.eventCanvas._elem.get(0).oncontextmenu = function () {
                return false;
            };
        } else {
            this.eventCanvas._elem.bind('mouseup', {plot: this}, this.onMouseUp);
        }
    };

    /**
     * Computes a highlight color or array of highlight colors from given colors.
     * @param {array} colors
     */
    $.jqplot.computeHighlightColors  = function (colors) {
        var ret,
            i,
            rgba,
            newrgb,
            sum,
            j,
            l;
        if ($.isArray(colors)) {
            ret = [];
            for (i = 0, l = colors.length; i < l; i++) {
                rgba = $.jqplot.getColorComponents(colors[i]);
                newrgb = [rgba[0], rgba[1], rgba[2]];
                sum = newrgb[0] + newrgb[1] + newrgb[2];
                for (j = 0; j < 3; j++) {
                    // when darkening, lowest color component can be is 60.
                    newrgb[j] = (sum > 660) ?  newrgb[j] * 0.85 : 0.73 * newrgb[j] + 90;
                    newrgb[j] = parseInt(newrgb[j], 10);
                    newrgb[j] = (newrgb[j] > 255) ? 255 : newrgb[j];
                }
                // newrgb[3] = (rgba[3] > 0.4) ? rgba[3] * 0.4 : rgba[3] * 1.5;
                // newrgb[3] = (rgba[3] > 0.5) ? 0.8 * rgba[3] - .1 : rgba[3] + 0.2;
                newrgb[3] = 0.3 + 0.35 * rgba[3];
                ret.push('rgba(' + newrgb[0] + ',' + newrgb[1] + ',' + newrgb[2] + ',' + newrgb[3] + ')');
            }
        } else {
            rgba = $.jqplot.getColorComponents(colors);
            newrgb = [rgba[0], rgba[1], rgba[2]];
            sum = newrgb[0] + newrgb[1] + newrgb[2];
            for (j = 0; j < 3; j++) {
                // when darkening, lowest color component can be is 60.
                // newrgb[j] = (sum > 570) ?  newrgb[j] * 0.8 : newrgb[j] + 0.3 * (255 - newrgb[j]);
                // newrgb[j] = parseInt(newrgb[j], 10);
                newrgb[j] = (sum > 660) ? newrgb[j] * 0.85 : 0.73 * newrgb[j] + 90;
                newrgb[j] = parseInt(newrgb[j], 10);
                newrgb[j] = (newrgb[j] > 255) ? 255 : newrgb[j];
            }
            // newrgb[3] = (rgba[3] > 0.4) ? rgba[3] * 0.4 : rgba[3] * 1.5;
            // newrgb[3] = (rgba[3] > 0.5) ? 0.8 * rgba[3] - .1 : rgba[3] + 0.2;
            newrgb[3] = 0.3 + 0.35 * rgba[3];
            ret = 'rgba(' + newrgb[0] + ',' + newrgb[1] + ',' + newrgb[2] + ',' + newrgb[3] + ')';
        }
        return ret;
    };

    /**
     * @class
     * @contructor
     * @param {array} colors
     */
    $.jqplot.ColorGenerator = function (colors) {

        colors = colors || $.jqplot.config.defaultColors;

        var idx = 0;

        this.next = function () {
            if (idx < colors.length) {
                return colors[idx++];
            } else {
                idx = 0;
                return colors[idx++];
            }
        };

        this.previous = function () {
            if (idx > 0) {
                return colors[idx--];
            } else {
                idx = colors.length - 1;
                return colors[idx];
            }
        };

        // get a color by index without advancing pointer.
        this.get = function (i) {
            var idx = i - colors.length * Math.floor(i / colors.length);
            return colors[idx];
        };

        this.setColors = function (c) {
            colors = c;
        };

        this.reset = function () {
            idx = 0;
        };

        this.getIndex = function () {
            return idx;
        };

        this.setIndex = function (index) {
            idx = index;
        };
    };

    /** convert a hex color string to rgb string.
     * @param {string] h 3 or 6 character hex string, with or without leading #
     * @param {number} a optional alpha
     */
    $.jqplot.hex2rgb = function (h, a) {

        var rgb;

        h = h.replace('#', '');

        if (h.length === 3) {
            h = h.charAt(0) + h.charAt(0) + h.charAt(1) + h.charAt(1) + h.charAt(2) + h.charAt(2);
        }

        rgb = 'rgba(' + parseInt(h.slice(0, 2), 16) + ', ' + parseInt(h.slice(2, 4), 16) + ', ' + parseInt(h.slice(4, 6), 16);

        if (a) {
            rgb += ', ' + a;
        }

        rgb += ')';

        return rgb;
    };

    /**
     * convert an rgb color spec to a hex spec.  ignore any alpha specification.
     * @param {string} s string css spe
     */
    $.jqplot.rgb2hex = function (s) {
        var pat = /rgba?\( *([0-9]{1,3}\.?[0-9]*%?) *, *([0-9]{1,3}\.?[0-9]*%?) *, *([0-9]{1,3}\.?[0-9]*%?) *(?:, *[0-9.]*)?\)/,
            m = s.match(pat),
            h = '#',
            i,
            temp;

        for (i = 1; i < 4; i++) {
            if (m[i].search(/%/) !== -1) {
                temp = parseInt(255 * m[i] / 100, 10).toString(16);
                if (temp.length === 1) {
                    temp = '0' + temp;
                }
            } else {
                temp = parseInt(m[i], 10).toString(16);
                if (temp.length === 1) {
                    temp = '0' + temp;
                }
            }
            h += temp;
        }
        return h;
    };

    /**
     * given a css color spec, return an rgb css color spec.
     * @param {string} s css spec
     * @param {number} a alpha opacity
     */
    $.jqplot.normalize2rgb = function (s, a) {
        if (s.search(/^ *rgba?\(/) !== -1) {
            return s;
        } else if (s.search(/^ *#?[0-9a-fA-F]?[0-9a-fA-F]/) !== -1) {
            return $.jqplot.hex2rgb(s, a);
        } else {
            throw new Error('Invalid color spec');
        }
    };

    /**
     * Extracts the r, g, b, a color components out of a css color spec.
     * @param   {string} s match the string color name for the rgba color.
     * @returns {string} the rgba color specified @see {@link $.jqplot.colorKeywordMap}
     */
    $.jqplot.getColorComponents = function (s) {

        // check to see if a color keyword.
        s = $.jqplot.colorKeywordMap[s] || s;

        var rgb = $.jqplot.normalize2rgb(s),
            pat = /rgba?\( *([0-9]{1,3}\.?[0-9]*%?) *, *([0-9]{1,3}\.?[0-9]*%?) *, *([0-9]{1,3}\.?[0-9]*%?) *,? *([0-9.]* *)?\)/,
            m = rgb.match(pat),
            ret = [],
            i;

        for (i = 1; i < 4; i++) {
            if (m[i].search(/%/) !== -1) {
                ret[i - 1] = parseInt(255 * m[i] / 100, 10);
            } else {
                ret[i - 1] = parseInt(m[i], 10);
            }
        }
        ret[3] = parseFloat(m[4]) || 1.0;
        return ret;
    };

    /**
     * know if a color is dark or not
     * @param   {string} color string color css representation
     * @returns {boolean} true if the color is dark.
     */
    $.jqplot.isDarkColor = function (color) {

        var L = 0,
            rgba = this.getColorRGB(color);

        if (rgba !== null) {
            color = rgba;
        } else {
            color = $.jqplot.getColorComponents(color);
        }

        if (color !== null) {
            L = 0.300 * (color[0] / 255) + 0.590 * (color[1] / 255) + 0.110 * (color[2] / 255);
        }

        return (L < 0.45);

    };

    /**
     * Gets the RGB color value for a given color
     * @param   {String}   color css string color representation.
     * @returns [Number] rgb array color.
     */
    $.jqplot.getColorRGB = function (color) {

        var rgbError = [0, 0, 0],
            red,
            green,
            blue,
            rgbString,
            rgb,
            strLen = color.length;

        if (strLen && color.lastIndexOf("rgb") !== -1) {

            color = color.replace("rgba", "");
            color = color.replace("rgb", "");
            color = color.replace("\\(", "");
            color = color.replace("\\)", "");
            color = color.replace(" ", "");

            rgbString = color.split(",");

            red = parseInt(rgbString[0], 10);
            green = parseInt(rgbString[1], 10);
            blue = parseInt(rgbString[2], 10);

            rgb = [red, green, blue];

            return rgb;

        } else if (strLen && color.indexOf("#") === 0) {

            // eg. #F90
            if (strLen === 4) {
                red = color.substr(1, 1);
                green = color.substr(2, 1);
                blue = color.substr(3, 1);
            // eg. #FF9900
            } else {
                red = color.substr(1, 2);
                green = color.substr(3, 2);
                blue = color.substr(5, 2);
            }

            red = parseInt(red, 16);
            green = parseInt(green, 16);
            blue = parseInt(blue, 16);

            rgb = [red, green, blue];

            return rgb;

        } else {
            return null;
        }

    };

    /**
     * {@link}
     * @property {map} jqplot themes commons colors map.
     */
    $.jqplot.colorKeywordMap = {
        aliceblue: 'rgb(240, 248, 255)',
        antiquewhite: 'rgb(250, 235, 215)',
        aqua: 'rgb( 0, 255, 255)',
        aquamarine: 'rgb(127, 255, 212)',
        azure: 'rgb(240, 255, 255)',
        beige: 'rgb(245, 245, 220)',
        bisque: 'rgb(255, 228, 196)',
        black: 'rgb( 0, 0, 0)',
        blanchedalmond: 'rgb(255, 235, 205)',
        blue: 'rgb( 0, 0, 255)',
        blueviolet: 'rgb(138, 43, 226)',
        brown: 'rgb(165, 42, 42)',
        burlywood: 'rgb(222, 184, 135)',
        cadetblue: 'rgb( 95, 158, 160)',
        chartreuse: 'rgb(127, 255, 0)',
        chocolate: 'rgb(210, 105, 30)',
        coral: 'rgb(255, 127, 80)',
        cornflowerblue: 'rgb(100, 149, 237)',
        cornsilk: 'rgb(255, 248, 220)',
        crimson: 'rgb(220, 20, 60)',
        cyan: 'rgb( 0, 255, 255)',
        darkblue: 'rgb( 0, 0, 139)',
        darkcyan: 'rgb( 0, 139, 139)',
        darkgoldenrod: 'rgb(184, 134, 11)',
        darkgray: 'rgb(169, 169, 169)',
        darkgreen: 'rgb( 0, 100, 0)',
        darkgrey: 'rgb(169, 169, 169)',
        darkkhaki: 'rgb(189, 183, 107)',
        darkmagenta: 'rgb(139, 0, 139)',
        darkolivegreen: 'rgb( 85, 107, 47)',
        darkorange: 'rgb(255, 140, 0)',
        darkorchid: 'rgb(153, 50, 204)',
        darkred: 'rgb(139, 0, 0)',
        darksalmon: 'rgb(233, 150, 122)',
        darkseagreen: 'rgb(143, 188, 143)',
        darkslateblue: 'rgb( 72, 61, 139)',
        darkslategray: 'rgb( 47, 79, 79)',
        darkslategrey: 'rgb( 47, 79, 79)',
        darkturquoise: 'rgb( 0, 206, 209)',
        darkviolet: 'rgb(148, 0, 211)',
        deeppink: 'rgb(255, 20, 147)',
        deepskyblue: 'rgb( 0, 191, 255)',
        dimgray: 'rgb(105, 105, 105)',
        dimgrey: 'rgb(105, 105, 105)',
        dodgerblue: 'rgb( 30, 144, 255)',
        firebrick: 'rgb(178, 34, 34)',
        floralwhite: 'rgb(255, 250, 240)',
        forestgreen: 'rgb( 34, 139, 34)',
        fuchsia: 'rgb(255, 0, 255)',
        gainsboro: 'rgb(220, 220, 220)',
        ghostwhite: 'rgb(248, 248, 255)',
        gold: 'rgb(255, 215, 0)',
        goldenrod: 'rgb(218, 165, 32)',
        gray: 'rgb(128, 128, 128)',
        grey: 'rgb(128, 128, 128)',
        green: 'rgb( 0, 128, 0)',
        greenyellow: 'rgb(173, 255, 47)',
        honeydew: 'rgb(240, 255, 240)',
        hotpink: 'rgb(255, 105, 180)',
        indianred: 'rgb(205, 92, 92)',
        indigo: 'rgb( 75, 0, 130)',
        ivory: 'rgb(255, 255, 240)',
        khaki: 'rgb(240, 230, 140)',
        lavender: 'rgb(230, 230, 250)',
        lavenderblush: 'rgb(255, 240, 245)',
        lawngreen: 'rgb(124, 252, 0)',
        lemonchiffon: 'rgb(255, 250, 205)',
        lightblue: 'rgb(173, 216, 230)',
        lightcoral: 'rgb(240, 128, 128)',
        lightcyan: 'rgb(224, 255, 255)',
        lightgoldenrodyellow: 'rgb(250, 250, 210)',
        lightgray: 'rgb(211, 211, 211)',
        lightgreen: 'rgb(144, 238, 144)',
        lightgrey: 'rgb(211, 211, 211)',
        lightpink: 'rgb(255, 182, 193)',
        lightsalmon: 'rgb(255, 160, 122)',
        lightseagreen: 'rgb( 32, 178, 170)',
        lightskyblue: 'rgb(135, 206, 250)',
        lightslategray: 'rgb(119, 136, 153)',
        lightslategrey: 'rgb(119, 136, 153)',
        lightsteelblue: 'rgb(176, 196, 222)',
        lightyellow: 'rgb(255, 255, 224)',
        lime: 'rgb( 0, 255, 0)',
        limegreen: 'rgb( 50, 205, 50)',
        linen: 'rgb(250, 240, 230)',
        magenta: 'rgb(255, 0, 255)',
        maroon: 'rgb(128, 0, 0)',
        mediumaquamarine: 'rgb(102, 205, 170)',
        mediumblue: 'rgb( 0, 0, 205)',
        mediumorchid: 'rgb(186, 85, 211)',
        mediumpurple: 'rgb(147, 112, 219)',
        mediumseagreen: 'rgb( 60, 179, 113)',
        mediumslateblue: 'rgb(123, 104, 238)',
        mediumspringgreen: 'rgb( 0, 250, 154)',
        mediumturquoise: 'rgb( 72, 209, 204)',
        mediumvioletred: 'rgb(199, 21, 133)',
        midnightblue: 'rgb( 25, 25, 112)',
        mintcream: 'rgb(245, 255, 250)',
        mistyrose: 'rgb(255, 228, 225)',
        moccasin: 'rgb(255, 228, 181)',
        navajowhite: 'rgb(255, 222, 173)',
        navy: 'rgb( 0, 0, 128)',
        oldlace: 'rgb(253, 245, 230)',
        olive: 'rgb(128, 128, 0)',
        olivedrab: 'rgb(107, 142, 35)',
        orange: 'rgb(255, 165, 0)',
        orangered: 'rgb(255, 69, 0)',
        orchid: 'rgb(218, 112, 214)',
        palegoldenrod: 'rgb(238, 232, 170)',
        palegreen: 'rgb(152, 251, 152)',
        paleturquoise: 'rgb(175, 238, 238)',
        palevioletred: 'rgb(219, 112, 147)',
        papayawhip: 'rgb(255, 239, 213)',
        peachpuff: 'rgb(255, 218, 185)',
        peru: 'rgb(205, 133, 63)',
        pink: 'rgb(255, 192, 203)',
        plum: 'rgb(221, 160, 221)',
        powderblue: 'rgb(176, 224, 230)',
        purple: 'rgb(128, 0, 128)',
        red: 'rgb(255, 0, 0)',
        rosybrown: 'rgb(188, 143, 143)',
        royalblue: 'rgb( 65, 105, 225)',
        saddlebrown: 'rgb(139, 69, 19)',
        salmon: 'rgb(250, 128, 114)',
        sandybrown: 'rgb(244, 164, 96)',
        seagreen: 'rgb( 46, 139, 87)',
        seashell: 'rgb(255, 245, 238)',
        sienna: 'rgb(160, 82, 45)',
        silver: 'rgb(192, 192, 192)',
        skyblue: 'rgb(135, 206, 235)',
        slateblue: 'rgb(106, 90, 205)',
        slategray: 'rgb(112, 128, 144)',
        slategrey: 'rgb(112, 128, 144)',
        snow: 'rgb(255, 250, 250)',
        springgreen: 'rgb( 0, 255, 127)',
        steelblue: 'rgb( 70, 130, 180)',
        tan: 'rgb(210, 180, 140)',
        teal: 'rgb( 0, 128, 128)',
        thistle: 'rgb(216, 191, 216)',
        tomato: 'rgb(255, 99, 71)',
        turquoise: 'rgb( 64, 224, 208)',
        violet: 'rgb(238, 130, 238)',
        wheat: 'rgb(245, 222, 179)',
        white: 'rgb(255, 255, 255)',
        whitesmoke: 'rgb(245, 245, 245)',
        yellow: 'rgb(255, 255, 0)',
        yellowgreen: 'rgb(154, 205, 50)'
    };

}(jQuery, window));