/**
 * @license Highcharts JS v6.1.0 (2018-04-13)
 * Exporting module
 *
 * (c) 2010-2017 Torstein Honsi
 *
 * License: www.highcharts.com/license
 */
'use strict';
(function (factory) {
	if (typeof module === 'object' && module.exports) {
		module.exports = factory;
	} else {
		factory(Highcharts);
	}
}(function (Highcharts) {
	(function (H) {
		/**
		 * (c) 2010-2017 Christer Vasseng, Torstein Honsi
		 *
		 * License: www.highcharts.com/license
		 */
		/**
		 * @typedef {Object} AjaxSettings
		 * @property {String} url - The URL to call
		 * @property {('get'|'post'|'update'|'delete')} type - The verb to use
		 * @property {('json'|'xml'|'text'|'octet')} dataType - The data type expected
		 * @property {Function} success - Function to call on success
		 * @property {Function} error - Function to call on error
		 * @property {Object} data - The payload to send
		 * @property {Object} headers - The headers; keyed on header name
		 */

		/**
		 * Perform an Ajax call.
		 *
		 * @memberof Highcharts
		 * @param {AjaxSettings} - The Ajax settings to use
		 *
		 */
		H.ajax = function (attr) {
		    var options = H.merge(true, {
		            url: false,
		            type: 'GET',
		            dataType: 'json',
		            success: false,
		            error: false,
		            data: false,
		            headers: {}
		        }, attr),
		        headers = {
		            json: 'application/json',
		            xml: 'application/xml',
		            text: 'text/plain',
		            octet: 'application/octet-stream'
		        },
		        r = new XMLHttpRequest();

		    function handleError(xhr, err) {
		        if (options.error) {
		            options.error(xhr, err);
		        } else {
		            // Maybe emit a highcharts error event here
		        }
		    }

		    if (!options.url) {
		        return false;
		    }

		    r.open(options.type.toUpperCase(), options.url, true);
		    r.setRequestHeader(
		        'Content-Type',
		        headers[options.dataType] || headers.text
		    );

		    H.objectEach(options.headers, function (val, key) {
		        r.setRequestHeader(key, val);
		    });

		    r.onreadystatechange = function () {
		        var res;

		        if (r.readyState === 4) {
		            if (r.status === 200) {
		                res = r.responseText;
		                if (options.dataType === 'json') {
		                    try {
		                        res = JSON.parse(res);
		                    } catch (e) {
		                        return handleError(r, e);
		                    }
		                }
		                return options.success && options.success(res);
		            }

		            handleError(r, r.responseText);
		        }
		    };

		    try {
		        options.data = JSON.stringify(options.data);
		    } catch (e) {}

		    r.send(options.data || true);
		};

	}(Highcharts));
	(function (Highcharts) {
		/**
		 * Experimental data export module for Highcharts
		 *
		 * (c) 2010-2017 Torstein Honsi
		 *
		 * License: www.highcharts.com/license
		 */

		// @todo
		// - Set up systematic tests for all series types, paired with tests of the data
		//   module importing the same data.


		var defined = Highcharts.defined,
		    each = Highcharts.each,
		    pick = Highcharts.pick,
		    win = Highcharts.win,
		    doc = win.document,
		    seriesTypes = Highcharts.seriesTypes,
		    downloadAttrSupported = doc.createElement('a').download !== undefined;

		// Can we add this to utils? Also used in screen-reader.js
		/**
		 * HTML encode some characters vulnerable for XSS.
		 * @param  {string} html The input string
		 * @return {string} The excaped string
		 */
		function htmlencode(html) {
		    return html
		        .replace(/&/g, '&')
		        .replace(/</g, '&lt;')
		        .replace(/>/g, '&gt;')
		        .replace(/"/g, '&quot;')
		        .replace(/'/g, '&#x27;')
		        .replace(/\//g, '&#x2F;');
		}

		Highcharts.setOptions({
		    /**
		     * @optionparent exporting
		     */
		    exporting: {

		        /**
		         * Export-data module required. Caption for the data table. Same as
		         * chart title by default. Set to `false` to disable.
		         *
		         * @type {Boolean|String}
		         * @since 6.0.4
		         * @sample highcharts/export-data/multilevel-table
		         *            Multiple table headers
		         * @default undefined
		         * @apioption exporting.tableCaption
		         */

		        /**
		         * Options for exporting data to CSV or ExCel, or displaying the data
		         * in a HTML table or a JavaScript structure. Requires the
		         * `export-data.js` module. This module adds data export options to the
		         * export menu and provides functions like `Chart.getCSV`,
		         * `Chart.getTable`, `Chart.getDataRows` and `Chart.viewData`.
		         *
		         * @sample  highcharts/export-data/categorized/ Categorized data
		         * @sample  highcharts/export-data/stock-timeaxis/ Highstock time axis
		         *
		         * @since 6.0.0
		         */
		        csv: {
		            /**
		             * Formatter callback for the column headers. Parameters are:
		             * - `item` - The series or axis object)
		             * - `key` -  The point key, for example y or z
		             * - `keyLength` - The amount of value keys for this item, for
		             *   example a range series has the keys `low` and `high` so the
		             *   key length is 2.
		             *
		             * If [useMultiLevelHeaders](#exporting.useMultiLevelHeaders) is
		             * true, columnHeaderFormatter by default returns an object with
		             * columnTitle and topLevelColumnTitle for each key. Columns with
		             * the same topLevelColumnTitle have their titles merged into a
		             * single cell with colspan for table/Excel export.
		             *
		             * If `useMultiLevelHeaders` is false, or for CSV export, it returns
		             * the series name, followed by the key if there is more than one
		             * key.
		             *
		             * For the axis it returns the axis title or "Category" or
		             * "DateTime" by default.
		             *
		             * Return `false` to use Highcharts' proposed header.
		             *
		             * @sample highcharts/export-data/multilevel-table
		             *            Multiple table headers
		             * @type {Function|null}
		             */
		            columnHeaderFormatter: null,
		            /**
		             * Which date format to use for exported dates on a datetime X axis.
		             * See `Highcharts.dateFormat`.
		             */
		            dateFormat: '%Y-%m-%d %H:%M:%S',

		            /**
		             * Which decimal point to use for exported CSV. Defaults to the same
		             * as the browser locale, typically `.` (English) or `,` (German,
		             * French etc).
		             * @type  {String}
		             * @since 6.0.4
		             */
		            decimalPoint: null,
		            /**
		             * The item delimiter in the exported data. Use `;` for direct
		             * exporting to Excel. Defaults to a best guess based on the browser
		             * locale. If the locale _decimal point_ is `,`, the `itemDelimiter`
		             * defaults to `;`, otherwise the `itemDelimiter` defaults to `,`.
		             *
		             * @type {String}
		             */
		            itemDelimiter: null,
		            /**
		             * The line delimiter in the exported data, defaults to a newline.
		             */
		            lineDelimiter: '\n'
		        },
		        /**
		         * Export-data module required. Show a HTML table below the chart with
		         * the chart's current data.
		         *
		         * @sample highcharts/export-data/showtable/ Show the table
		         * @since 6.0.0
		         */
		        showTable: false,

		        /**
		         * Export-data module required. Use multi level headers in data table.
		         * If [csv.columnHeaderFormatter](#exporting.csv.columnHeaderFormatter)
		         * is defined, it has to return objects in order for multi level headers
		         * to work.
		         *
		         * @sample highcharts/export-data/multilevel-table
		         *            Multiple table headers
		         * @since 6.0.4
		         */
		        useMultiLevelHeaders: true,

		        /**
		         * Export-data module required. If using multi level table headers, use
		         * rowspans for headers that have only one level.
		         *
		         * @sample highcharts/export-data/multilevel-table
		         *            Multiple table headers
		         * @since 6.0.4
		         */
		        useRowspanHeaders: true
		    },
		    /**
		     * @optionparent lang
		     */
		    lang: {
		        /**
		         * Export-data module only. The text for the menu item.
		         * @since 6.0.0
		         */
		        downloadCSV: 'Download CSV',
		        /**
		         * Export-data module only. The text for the menu item.
		         * @since 6.0.0
		         */
		        downloadXLS: 'Download XLS',
		        /**
		         * Export-data module only. The text for the menu item.
		         * @since 6.1.0
		         */
		        openInCloud: 'Open in Highcharts Cloud',
		        /**
		         * Export-data module only. The text for the menu item.
		         * @since 6.0.0
		         */
		        viewData: 'View data table'
		    }
		});

		// Add an event listener to handle the showTable option
		Highcharts.addEvent(Highcharts.Chart, 'render', function () {
		    if (
		        this.options &&
		        this.options.exporting &&
		        this.options.exporting.showTable
		    ) {
		        this.viewData();
		    }
		});

		// Set up key-to-axis bindings. This is used when the Y axis is datetime or
		// categorized. For example in an arearange series, the low and high values
		// sholud be formatted according to the Y axis type, and in order to link them
		// we need this map.
		Highcharts.Chart.prototype.setUpKeyToAxis = function () {
		    if (seriesTypes.arearange) {
		        seriesTypes.arearange.prototype.keyToAxis = {
		            low: 'y',
		            high: 'y'
		        };
		    }
		};

		/**
		 * Export-data module required. Returns a two-dimensional array containing the
		 * current chart data.
		 *
		 * @param  {Boolean} multiLevelHeaders
		 *            Use multilevel headers for the rows by default. Adds an extra row
		 *            with top level headers. If a custom columnHeaderFormatter is
		 *            defined, this can override the behavior.
		 *
		 * @returns {Array.<Array>}
		 *          The current chart data
		 */
		Highcharts.Chart.prototype.getDataRows = function (multiLevelHeaders) {
		    var time = this.time,
		        csvOptions = (this.options.exporting && this.options.exporting.csv) ||
		            {},
		        xAxis,
		        xAxes = this.xAxis,
		        rows = {},
		        rowArr = [],
		        dataRows,
		        topLevelColumnTitles = [],
		        columnTitles = [],
		        columnTitleObj,
		        i,
		        x,
		        xTitle,
		        // Options
		        columnHeaderFormatter = function (item, key, keyLength) {
		            if (csvOptions.columnHeaderFormatter) {
		                var s = csvOptions.columnHeaderFormatter(item, key, keyLength);
		                if (s !== false) {
		                    return s;
		                }
		            }

		            if (!item) {
		                return 'Category';
		            }

		            if (item instanceof Highcharts.Axis) {
		                return (item.options.title && item.options.title.text) ||
		                    (item.isDatetimeAxis ? 'DateTime' : 'Category');
		            }

		            if (multiLevelHeaders) {
		                return {
		                    columnTitle: keyLength > 1 ? key : item.name,
		                    topLevelColumnTitle: item.name
		                };
		            }

		            return item.name + (keyLength > 1 ? ' (' + key + ')' : '');
		        },
		        xAxisIndices = [];

		    // Loop the series and index values
		    i = 0;

		    this.setUpKeyToAxis();

		    each(this.series, function (series) {
		        var keys = series.options.keys,
		            pointArrayMap = keys || series.pointArrayMap || ['y'],
		            valueCount = pointArrayMap.length,
		            xTaken = !series.requireSorting && {},
		            categoryMap = {},
		            datetimeValueAxisMap = {},
		            xAxisIndex = Highcharts.inArray(series.xAxis, xAxes),
		            mockSeries,
		            j;

		        // Map the categories for value axes
		        each(pointArrayMap, function (prop) {
		            var axisName = (
		                (series.keyToAxis && series.keyToAxis[prop]) ||
		                prop
		            ) + 'Axis';

		            categoryMap[prop] = (
		                series[axisName] &&
		                series[axisName].categories
		            ) || [];
		            datetimeValueAxisMap[prop] = (
		                series[axisName] &&
		                series[axisName].isDatetimeAxis
		            );
		        });

		        if (
		            series.options.includeInCSVExport !== false &&
		            !series.options.isInternal &&
		            series.visible !== false // #55
		        ) {

		            // Build a lookup for X axis index and the position of the first
		            // series that belongs to that X axis. Includes -1 for non-axis
		            // series types like pies.
		            if (!Highcharts.find(xAxisIndices, function (index) {
		                return index[0] === xAxisIndex;
		            })) {
		                xAxisIndices.push([xAxisIndex, i]);
		            }

		            // Compute the column headers and top level headers, usually the
		            // same as series names
		            j = 0;
		            while (j < valueCount) {
		                columnTitleObj = columnHeaderFormatter(
		                    series,
		                    pointArrayMap[j],
		                    pointArrayMap.length
		                );
		                columnTitles.push(
		                    columnTitleObj.columnTitle || columnTitleObj
		                );
		                if (multiLevelHeaders) {
		                    topLevelColumnTitles.push(
		                        columnTitleObj.topLevelColumnTitle || columnTitleObj
		                    );
		                }
		                j++;
		            }

		            mockSeries = {
		                chart: series.chart,
		                autoIncrement: series.autoIncrement,
		                options: series.options,
		                pointArrayMap: series.pointArrayMap
		            };

		            // Export directly from options.data because we need the uncropped
		            // data (#7913), and we need to support Boost (#7026).
		            each(series.options.data, function eachData(options, pIdx) {
		                var key,
		                    prop,
		                    val,
		                    point;

		                point = { series: mockSeries };
		                series.pointClass.prototype.applyOptions.apply(
		                    point,
		                    [options]
		                );
		                key = point.x;

		                if (xTaken) {
		                    if (xTaken[key]) {
		                        key += '|' + pIdx;
		                    }
		                    xTaken[key] = true;
		                }

		                j = 0;

		                if (!rows[key]) {
		                    // Generate the row
		                    rows[key] = [];
		                    // Contain the X values from one or more X axes
		                    rows[key].xValues = [];
		                }
		                rows[key].x = point.x;
		                rows[key].xValues[xAxisIndex] = point.x;

		                // Pies, funnels, geo maps etc. use point name in X row
		                if (!series.xAxis || series.exportKey === 'name') {
		                    rows[key].name = (
		                        series.data[pIdx] &&
		                        series.data[pIdx].name
		                    );
		                }

		                while (j < valueCount) {
		                    prop = pointArrayMap[j]; // y, z etc
		                    val = point[prop];
		                    rows[key][i + j] = pick(
		                        categoryMap[prop][val], // Y axis category if present
		                        datetimeValueAxisMap[prop] ?
		                            time.dateFormat(csvOptions.dateFormat, val) :
		                            null,
		                        val
		                    );
		                    j++;
		                }

		            });
		            i = i + j;
		        }
		    });

		    // Make a sortable array
		    for (x in rows) {
		        if (rows.hasOwnProperty(x)) {
		            rowArr.push(rows[x]);
		        }
		    }

		    var xAxisIndex, column;

		    // Add computed column headers and top level headers to final row set
		    dataRows = multiLevelHeaders ? [topLevelColumnTitles, columnTitles] :
		        [columnTitles];

		    i = xAxisIndices.length;
		    while (i--) { // Start from end to splice in
		        xAxisIndex = xAxisIndices[i][0];
		        column = xAxisIndices[i][1];
		        xAxis = xAxes[xAxisIndex];

		        // Sort it by X values
		        rowArr.sort(function (a, b) { // eslint-disable-line no-loop-func
		            return a.xValues[xAxisIndex] - b.xValues[xAxisIndex];
		        });

		        // Add header row
		        xTitle = columnHeaderFormatter(xAxis);
		        dataRows[0].splice(column, 0, xTitle);
		        if (multiLevelHeaders && dataRows[1]) {
		            // If using multi level headers, we just added top level header.
		            // Also add for sub level
		            dataRows[1].splice(column, 0, xTitle);
		        }

		        // Add the category column
		        each(rowArr, function (row) { // eslint-disable-line no-loop-func
		            var category = row.name;
		            if (xAxis && !defined(category)) {
		                if (xAxis.isDatetimeAxis) {
		                    if (row.x instanceof Date) {
		                        row.x = row.x.getTime();
		                    }
		                    category = time.dateFormat(
		                        csvOptions.dateFormat,
		                        row.x
		                    );
		                } else if (xAxis.categories) {
		                    category = pick(
		                        xAxis.names[row.x],
		                        xAxis.categories[row.x],
		                        row.x
		                    );
		                } else {
		                    category = row.x;
		                }
		            }

		            // Add the X/date/category
		            row.splice(column, 0, category);
		        });
		    }
		    dataRows = dataRows.concat(rowArr);

		    return dataRows;
		};

		/**
		 * Export-data module required. Returns the current chart data as a CSV string.
		 *
		 * @param  {Boolean} useLocalDecimalPoint
		 *         Whether to use the local decimal point as detected from the browser.
		 *         This makes it easier to export data to Excel in the same locale as
		 *         the user is.
		 *
		 * @returns {String}
		 *          CSV representation of the data
		 */
		Highcharts.Chart.prototype.getCSV = function (useLocalDecimalPoint) {
		    var csv = '',
		        rows = this.getDataRows(),
		        csvOptions = this.options.exporting.csv,
		        decimalPoint = pick(
		            csvOptions.decimalPoint,
		            csvOptions.itemDelimiter !== ',' && useLocalDecimalPoint ?
		                (1.1).toLocaleString()[1] :
		                '.'
		        ),
		        // use ';' for direct to Excel
		        itemDelimiter = pick(
		            csvOptions.itemDelimiter,
		            decimalPoint === ',' ? ';' : ','
		        ),
		        // '\n' isn't working with the js csv data extraction
		        lineDelimiter = csvOptions.lineDelimiter;

		    // Transform the rows to CSV
		    each(rows, function (row, i) {
		        var val = '',
		            j = row.length;
		        while (j--) {
		            val = row[j];
		            if (typeof val === 'string') {
		                val = '"' + val + '"';
		            }
		            if (typeof val === 'number') {
		                if (decimalPoint !== '.') {
		                    val = val.toString().replace('.', decimalPoint);
		                }
		            }
		            row[j] = val;
		        }
		        // Add the values
		        csv += row.join(itemDelimiter);

		        // Add the line delimiter
		        if (i < rows.length - 1) {
		            csv += lineDelimiter;
		        }
		    });
		    return csv;
		};

		/**
		 * Export-data module required. Build a HTML table with the chart's current
		 * data.
		 *
		 * @sample  highcharts/export-data/viewdata/
		 *          View the data from the export menu
		 * @returns {String}
		 *          HTML representation of the data.
		 */
		Highcharts.Chart.prototype.getTable = function (useLocalDecimalPoint) {
		    var html = '<table>',
		        options = this.options,
		        decimalPoint = useLocalDecimalPoint ? (1.1).toLocaleString()[1] : '.',
		        useMultiLevelHeaders = pick(
		            options.exporting.useMultiLevelHeaders, true
		        ),
		        rows = this.getDataRows(useMultiLevelHeaders),
		        rowLength = 0,
		        topHeaders = useMultiLevelHeaders ? rows.shift() : null,
		        subHeaders = rows.shift(),
		        // Compare two rows for equality
		        isRowEqual = function (row1, row2) {
		            var i = row1.length;
		            if (row2.length === i) {
		                while (i--) {
		                    if (row1[i] !== row2[i]) {
		                        return false;
		                    }
		                }
		            } else {
		                return false;
		            }
		            return true;
		        },
		        // Get table cell HTML from value
		        getCellHTMLFromValue = function (tag, classes, attrs, value) {
		            var val = pick(value, ''),
		                className = 'text' + (classes ? ' ' + classes : '');
		            // Convert to string if number
		            if (typeof val === 'number') {
		                val = val.toString();
		                if (decimalPoint === ',') {
		                    val = val.replace('.', decimalPoint);
		                }
		                className = 'number';
		            } else if (!value) {
		                className = 'empty';
		            }
		            return '<' + tag + (attrs ? ' ' + attrs : '') +
		                    ' class="' + className + '">' +
		                    val + '</' + tag + '>';
		        },
		        // Get table header markup from row data
		        getTableHeaderHTML = function (topheaders, subheaders, rowLength) {
		            var html = '<thead>',
		                i = 0,
		                len = rowLength || subheaders && subheaders.length,
		                next,
		                cur,
		                curColspan = 0,
		                rowspan;
		            // Clean up multiple table headers. Chart.getDataRows() returns two
		            // levels of headers when using multilevel, not merged. We need to
		            // merge identical headers, remove redundant headers, and keep it
		            // all marked up nicely.
		            if (
		                useMultiLevelHeaders &&
		                topheaders &&
		                subheaders &&
		                !isRowEqual(topheaders, subheaders)
		            ) {
		                html += '<tr>';
		                for (; i < len; ++i) {
		                    cur = topheaders[i];
		                    next = topheaders[i + 1];
		                    if (cur === next) {
		                        ++curColspan;
		                    } else if (curColspan) {
		                        // Ended colspan
		                        // Add cur to HTML with colspan.
		                        html += getCellHTMLFromValue(
		                            'th',
		                            'highcharts-table-topheading',
		                            'scope="col" ' +
		                            'colspan="' + (curColspan + 1) + '"',
		                            cur
		                        );
		                        curColspan = 0;
		                    } else {
		                        // Cur is standalone. If it is same as sublevel,
		                        // remove sublevel and add just toplevel.
		                        if (cur === subheaders[i]) {
		                            if (options.exporting.useRowspanHeaders) {
		                                rowspan = 2;
		                                delete subheaders[i];
		                            } else {
		                                rowspan = 1;
		                                subheaders[i] = '';
		                            }
		                        } else {
		                            rowspan = 1;
		                        }
		                        html += getCellHTMLFromValue(
		                            'th',
		                            'highcharts-table-topheading',
		                            'scope="col"' +
		                            (rowspan > 1 ?
		                                ' valign="top" rowspan="' + rowspan + '"' :
		                            ''),
		                            cur
		                        );
		                    }
		                }
		                html += '</tr>';
		            }

		            // Add the subheaders (the only headers if not using multilevels)
		            if (subheaders) {
		                html += '<tr>';
		                for (i = 0, len = subheaders.length; i < len; ++i) {
		                    if (subheaders[i] !== undefined) {
		                        html += getCellHTMLFromValue(
		                            'th', null, 'scope="col"', subheaders[i]
		                        );
		                    }
		                }
		                html += '</tr>';
		            }
		            html += '</thead>';
		            return html;
		        };

		    // Add table caption
		    if (options.exporting.tableCaption !== false) {
		        html += '<caption class="highcharts-table-caption">' + pick(
		                options.exporting.tableCaption,
		                (
		                    options.title.text ?
		                    htmlencode(options.title.text) :
		                    'Chart'
		                )) +
		                '</caption>';
		    }

		    // Find longest row
		    for (var i = 0, len = rows.length; i < len; ++i) {
		        if (rows[i].length > rowLength) {
		            rowLength = rows[i].length;
		        }
		    }

		    // Add header
		    html += getTableHeaderHTML(
		        topHeaders,
		        subHeaders,
		        Math.max(rowLength, subHeaders.length)
		    );

		    // Transform the rows to HTML
		    html += '<tbody>';
		    each(rows, function (row) {
		        html += '<tr>';
		        for (var j = 0; j < rowLength; j++) {
		            // Make first column a header too. Especially important for
		            // category axes, but also might make sense for datetime? Should
		            // await user feedback on this.
		            html += getCellHTMLFromValue(
		                j ? 'td' : 'th',
		                null,
		                j ? '' : 'scope="row"',
		                row[j]
		            );
		        }
		        html += '</tr>';
		    });
		    html += '</tbody></table>';

		    return html;
		};

		/**
		 * File download using download attribute if supported.
		 *
		 * @private
		 */
		Highcharts.Chart.prototype.fileDownload = function (href, extension, content) {
		    var a,
		        blobObject,
		        name;

		    if (this.options.exporting.filename) {
		        name = this.options.exporting.filename;
		    } else if (this.title && this.title.textStr) {
		        name = this.title.textStr.replace(/ /g, '-').toLowerCase();
		    } else {
		        name = 'chart';
		    }

		    // MS specific. Check this first because of bug with Edge (#76)
		    if (win.Blob && win.navigator.msSaveOrOpenBlob) {
		        // Falls to msSaveOrOpenBlob if download attribute is not supported
		        blobObject = new win.Blob(
		            ['\uFEFF' + content], // #7084
		            { type: 'text/csv' }
		        );
		        win.navigator.msSaveOrOpenBlob(blobObject, name + '.' + extension);

		    // Download attribute supported
		    } else if (downloadAttrSupported) {
		        a = doc.createElement('a');
		        a.href = href;
		        a.download = name + '.' + extension;
		        this.container.appendChild(a); // #111
		        a.click();
		        a.remove();

		    } else {
		        Highcharts.error('The browser doesn\'t support downloading files');
		    }
		};

		/**
		 * Call this on click of 'Download CSV' button
		 *
		 * @private
		 */
		Highcharts.Chart.prototype.downloadCSV = function () {
		    var csv = this.getCSV(true);
		    this.fileDownload(
		        'data:text/csv,\uFEFF' + encodeURIComponent(csv),
		        'csv',
		        csv,
		        'text/csv'
		    );
		};

		/**
		 * Call this on click of 'Download XLS' button
		 *
		 * @private
		 */
		Highcharts.Chart.prototype.downloadXLS = function () {
		    var uri = 'data:application/vnd.ms-excel;base64,',
		        template = '<html xmlns:o="urn:schemas-microsoft-com:office:office" ' +
		            'xmlns:x="urn:schemas-microsoft-com:office:excel" ' +
		            'xmlns="http://www.w3.org/TR/REC-html40">' +
		            '<head><!--[if gte mso 9]><xml><x:ExcelWorkbook>' +
		            '<x:ExcelWorksheets><x:ExcelWorksheet>' +
		            '<x:Name>Ark1</x:Name>' +
		            '<x:WorksheetOptions><x:DisplayGridlines/></x:WorksheetOptions>' +
		            '</x:ExcelWorksheet></x:ExcelWorksheets></x:ExcelWorkbook>' +
		            '</xml><![endif]-->' +
		            '<style>td{border:none;font-family: Calibri, sans-serif;} ' +
		            '.number{mso-number-format:"0.00";} ' +
		            '.text{ mso-number-format:"\@";}</style>' +
		            '<meta name=ProgId content=Excel.Sheet>' +
		            '<meta charset=UTF-8>' +
		            '</head><body>' +
		            this.getTable(true) +
		            '</body></html>',
		        base64 = function (s) {
		            return win.btoa(unescape(encodeURIComponent(s))); // #50
		        };
		    this.fileDownload(
		        uri + base64(template),
		        'xls',
		        template,
		        'application/vnd.ms-excel'
		    );
		};

		/**
		 * Export-data module required. View the data in a table below the chart.
		 */
		Highcharts.Chart.prototype.viewData = function () {
		    if (!this.dataTableDiv) {
		        this.dataTableDiv = doc.createElement('div');
		        this.dataTableDiv.className = 'highcharts-data-table';

		        // Insert after the chart container
		        this.renderTo.parentNode.insertBefore(
		            this.dataTableDiv,
		            this.renderTo.nextSibling
		        );
		    }

		    this.dataTableDiv.innerHTML = this.getTable();
		};

		/**
		 * Experimental function to send a chart's config to the Cloud for editing.
		 *
		 * Limitations
		 * - All functions (formatters and callbacks) are removed since they're not
		 *   JSON.
		 *
		 * @todo
		 * - Let the Cloud throw a friendly warning about unsupported structures like
		 *   formatters.
		 * - Dynamically updated charts probably fail, we need a generic
		 *   Chart.getOptions function that returns all non-default options. Should also
		 *   be used by the export module.
		 */
		Highcharts.Chart.prototype.openInCloud = function () {

		    var options,
		        paramObj,
		        params;

		    // Recursively remove function callbacks
		    function removeFunctions(ob) {
		        Object.keys(ob).forEach(function (key) {
		            if (typeof ob[key] === 'function') {
		                delete ob[key];
		            }
		            if (Highcharts.isObject(ob[key])) { // object and not an array
		                removeFunctions(ob[key]);
		            }
		        });
		    }

		    function openInCloud() {
		        var form = doc.createElement('form');
		        doc.body.appendChild(form);
		        form.method = 'post';
		        form.action = 'https://cloud-api.highcharts.com/openincloud';
		        form.target = '_blank';
		        var input = doc.createElement('input');
		        input.type = 'hidden';
		        input.name = 'chart';
		        input.value = params;
		        form.appendChild(input);
		        form.submit();
		        doc.body.removeChild(form);
		    }

		    options = Highcharts.merge(this.userOptions);
		    removeFunctions(options);

		    paramObj = {
		        name: (options.title && options.title.text) || 'Chart title',
		        options: options,
		        settings: {
		            constructor: 'Chart',
		            dataProvider: {
		                csv: this.getCSV()
		            }
		        }
		    };

		    params = JSON.stringify(paramObj);
		    openInCloud();
		};

		// Add "Download CSV" to the exporting menu.
		var exportingOptions = Highcharts.getOptions().exporting;
		if (exportingOptions) {

		    Highcharts.extend(exportingOptions.menuItemDefinitions, {
		        downloadCSV: {
		            textKey: 'downloadCSV',
		            onclick: function () {
		                this.downloadCSV();
		            }
		        },
		        downloadXLS: {
		            textKey: 'downloadXLS',
		            onclick: function () {
		                this.downloadXLS();
		            }
		        },
		        viewData: {
		            textKey: 'viewData',
		            onclick: function () {
		                this.viewData();
		            }
		        },
		        openInCloud: {
		            textKey: 'openInCloud',
		            onclick: function () {
		                this.openInCloud();
		            }
		        }
		    });

		    exportingOptions.buttons.contextButton.menuItems.push(
		        'separator',
		        'downloadCSV',
		        'downloadXLS',
		        'viewData',
		        'openInCloud'
		    );
		}

		// Series specific
		if (seriesTypes.map) {
		    seriesTypes.map.prototype.exportKey = 'name';
		}
		if (seriesTypes.mapbubble) {
		    seriesTypes.mapbubble.prototype.exportKey = 'name';
		}
		if (seriesTypes.treemap) {
		    seriesTypes.treemap.prototype.exportKey = 'name';
		}

	}(Highcharts));
}));