text: /*! Javascript plotting library for jQuery, v. 0.7.
   *
   * Released under the MIT license by IOLA, December 2007.
   *
   */
  
  // first an inline dependency, jquery.colorhelpers.js, we inline it here
  // for convenience
  
  /* Plugin for jQuery for working with colors.
   *
   * Version 1.1.
   *
   * Inspiration from jQuery color animation plugin by John Resig.
   *
   * Released under the MIT license by Ole Laursen, October 2009.
   *
   * Examples:
   *
   *   $.color.parse("#fff").scale('rgb', 0.25).add('a', -0.5).toString()
   *   var c = $.color.extract($("#mydiv"), 'background-color');
   *   console.log(c.r, c.g, c.b, c.a);
   *   $.color.make(100, 50, 25, 0.4).toString() // returns "rgba(100,50,25,0.4)"
   *
   * Note that .scale() and .add() return the same modified object
   * instead of making a new one.
   *
   * V. 1.1: Fix error handling so e.g. parsing an empty string does
   * produce a color rather than just crashing.
   */
  (function(B){B.color={};B.color.make=function(F,E,C,D){var G={};G.r=F||0;G.g=E||0;G.b=C||0;G.a=D!=null?D:1;G.add=function(J,I){for(var H=0;H<J.length;++H){G[J.charAt(H)]+=I}return G.normalize()};G.scale=function(J,I){for(var H=0;H<J.length;++H){G[J.charAt(H)]*=I}return G.normalize()};G.toString=function(){if(G.a>=1){return"rgb("+[G.r,G.g,G.b].join(",")+")"}else{return"rgba("+[G.r,G.g,G.b,G.a].join(",")+")"}};G.normalize=function(){function H(J,K,I){return K<J?J:(K>I?I:K)}G.r=H(0,parseInt(G.r),255);G.g=H(0,parseInt(G.g),255);G.b=H(0,parseInt(G.b),255);G.a=H(0,G.a,1);return G};G.clone=function(){return B.color.make(G.r,G.b,G.g,G.a)};return G.normalize()};B.color.extract=function(D,C){var E;do{E=D.css(C).toLowerCase();if(E!=""&&E!="transparent"){break}D=D.parent()}while(!B.nodeName(D.get(0),"body"));if(E=="rgba(0, 0, 0, 0)"){E="transparent"}return B.color.parse(E)};B.color.parse=function(F){var E,C=B.color.make;if(E=/rgb\(\s*([0-9]{1,3})\s*,\s*([0-9]{1,3})\s*,\s*([0-9]{1,3})\s*\)/.exec(F)){return C(parseInt(E[1],10),parseInt(E[2],10),parseInt(E[3],10))}if(E=/rgba\(\s*([0-9]{1,3})\s*,\s*([0-9]{1,3})\s*,\s*([0-9]{1,3})\s*,\s*([0-9]+(?:\.[0-9]+)?)\s*\)/.exec(F)){return C(parseInt(E[1],10),parseInt(E[2],10),parseInt(E[3],10),parseFloat(E[4]))}if(E=/rgb\(\s*([0-9]+(?:\.[0-9]+)?)\%\s*,\s*([0-9]+(?:\.[0-9]+)?)\%\s*,\s*([0-9]+(?:\.[0-9]+)?)\%\s*\)/.exec(F)){return C(parseFloat(E[1])*2.55,parseFloat(E[2])*2.55,parseFloat(E[3])*2.55)}if(E=/rgba\(\s*([0-9]+(?:\.[0-9]+)?)\%\s*,\s*([0-9]+(?:\.[0-9]+)?)\%\s*,\s*([0-9]+(?:\.[0-9]+)?)\%\s*,\s*([0-9]+(?:\.[0-9]+)?)\s*\)/.exec(F)){return C(parseFloat(E[1])*2.55,parseFloat(E[2])*2.55,parseFloat(E[3])*2.55,parseFloat(E[4]))}if(E=/#([a-fA-F0-9]{2})([a-fA-F0-9]{2})([a-fA-F0-9]{2})/.exec(F)){return C(parseInt(E[1],16),parseInt(E[2],16),parseInt(E[3],16))}if(E=/#([a-fA-F0-9])([a-fA-F0-9])([a-fA-F0-9])/.exec(F)){return C(parseInt(E[1]+E[1],16),parseInt(E[2]+E[2],16),parseInt(E[3]+E[3],16))}var D=B.trim(F).toLowerCase();if(D=="transparent"){return C(255,255,255,0)}else{E=A[D]||[0,0,0];return C(E[0],E[1],E[2])}};var A={aqua:[0,255,255],azure:[240,255,255],beige:[245,245,220],black:[0,0,0],blue:[0,0,255],brown:[165,42,42],cyan:[0,255,255],darkblue:[0,0,139],darkcyan:[0,139,139],darkgrey:[169,169,169],darkgreen:[0,100,0],darkkhaki:[189,183,107],darkmagenta:[139,0,139],darkolivegreen:[85,107,47],darkorange:[255,140,0],darkorchid:[153,50,204],darkred:[139,0,0],darksalmon:[233,150,122],darkviolet:[148,0,211],fuchsia:[255,0,255],gold:[255,215,0],green:[0,128,0],indigo:[75,0,130],khaki:[240,230,140],lightblue:[173,216,230],lightcyan:[224,255,255],lightgreen:[144,238,144],lightgrey:[211,211,211],lightpink:[255,182,193],lightyellow:[255,255,224],lime:[0,255,0],magenta:[255,0,255],maroon:[128,0,0],navy:[0,0,128],olive:[128,128,0],orange:[255,165,0],pink:[255,192,203],purple:[128,0,128],violet:[128,0,128],red:[255,0,0],silver:[192,192,192],white:[255,255,255],yellow:[255,255,0]}})(jQuery);
  
  // the actual Flot code
  (function($) {
    function Plot(placeholder, data_, options_, plugins) {
      // data is on the form:
      //   [ series1, series2 ... ]
      // where series is either just the data as [ [x1, y1], [x2, y2], ... ]
      // or { data: [ [x1, y1], [x2, y2], ... ], label: "some label", ... }
  
      var series = [],
        options = {
          // the color theme used for graphs
          colors: ["#edc240", "#afd8f8", "#cb4b4b", "#4da74d", "#9440ed"],
          legend: {
            show: true,
            noColumns: 1, // number of colums in legend table
            labelFormatter: null, // fn: string -> string
            labelBoxBorderColor: "#ccc", // border color for the little label boxes
            container: null, // container (as jQuery object) to put legend in, null means default on top of graph
            position: "ne", // position of default legend container within plot
            margin: 5, // distance from grid edge to default legend container within plot
            backgroundColor: null, // null means auto-detect
            backgroundOpacity: 0.85 // set to 0 to avoid background
          },
          xaxis: {
            show: null, // null = auto-detect, true = always, false = never
            position: "bottom", // or "top"
            mode: null, // null or "time"
            color: null, // base color, labels, ticks
            tickColor: null, // possibly different color of ticks, e.g. "rgba(0,0,0,0.15)"
            transform: null, // null or f: number -> number to transform axis
            inverseTransform: null, // if transform is set, this should be the inverse function
            min: null, // min. value to show, null means set automatically
            max: null, // max. value to show, null means set automatically
            autoscaleMargin: null, // margin in % to add if auto-setting min/max
            ticks: null, // either [1, 3] or [[1, "a"], 3] or (fn: axis info -> ticks) or app. number of ticks for auto-ticks
            tickFormatter: null, // fn: number -> string
            labelWidth: null, // size of tick labels in pixels
            labelHeight: null,
            reserveSpace: null, // whether to reserve space even if axis isn't shown
            tickLength: null, // size in pixels of ticks, or "full" for whole line
            alignTicksWithAxis: null, // axis number or null for no sync
  
            // mode specific options
            tickDecimals: null, // no. of decimals, null means auto
            tickSize: null, // number or [number, "unit"]
            minTickSize: null, // number or [number, "unit"]
            monthNames: null, // list of names of months
            timeformat: null, // format string to use
            twelveHourClock: false // 12 or 24 time in time mode
          },
          yaxis: {
            autoscaleMargin: 0.02,
            position: "left" // or "right"
          },
          xaxes: [],
          yaxes: [],
          series: {
            points: {
              show: false,
              radius: 3,
              lineWidth: 2, // in pixels
              fill: true,
              fillColor: "#ffffff",
              symbol: "circle" // or callback
            },
            lines: {
              // we don't put in show: false so we can see
              // whether lines were actively disabled
              lineWidth: 2, // in pixels
              fill: false,
              fillColor: null,
              steps: false
            },
            bars: {
              show: false,
              lineWidth: 2, // in pixels
              barWidth: 1, // in units of the x axis
              fill: true,
              fillColor: null,
              align: "left", // or "center"
              horizontal: false
            },
            shadowSize: 3
          },
          grid: {
            show: true,
            aboveData: false,
            color: "#545454", // primary color used for outline and labels
            backgroundColor: null, // null for transparent, else color
            borderColor: null, // set if different from the grid color
            tickColor: null, // color for the ticks, e.g. "rgba(0,0,0,0.15)"
            labelMargin: 5, // in pixels
            axisMargin: 8, // in pixels
            borderWidth: 2, // in pixels
            minBorderMargin: null, // in pixels, null means taken from points radius
            markings: null, // array of ranges or fn: axes -> array of ranges
            markingsColor: "#f4f4f4",
            markingsLineWidth: 2,
            // interactive stuff
            clickable: false,
            hoverable: false,
            autoHighlight: true, // highlight in case mouse is near
            mouseActiveRadius: 10 // how far the mouse can be away to activate an item
          },
          hooks: {}
        },
        canvas = null,      // the canvas for the plot itself
        overlay = null,     // canvas for interactive stuff on top of plot
        eventHolder = null, // jQuery object that events should be bound to
        ctx = null, octx = null,
        xaxes = [], yaxes = [],
        plotOffset = { left: 0, right: 0, top: 0, bottom: 0},
        canvasWidth = 0, canvasHeight = 0,
        plotWidth = 0, plotHeight = 0,
        hooks = {
          processOptions: [],
          processRawData: [],
          processDatapoints: [],
          drawSeries: [],
          draw: [],
          bindEvents: [],
          drawOverlay: [],
          shutdown: []
        },
        plot = this;
  
      // public functions
      plot.setData = setData;
      plot.setupGrid = setupGrid;
      plot.draw = draw;
      plot.getPlaceholder = function() { return placeholder; };
      plot.getCanvas = function() { return canvas; };
      plot.getPlotOffset = function() { return plotOffset; };
      plot.width = function () { return plotWidth; };
      plot.height = function () { return plotHeight; };
      plot.offset = function () {
        var o = eventHolder.offset();
        o.left += plotOffset.left;
        o.top += plotOffset.top;
        return o;
      };
      plot.getData = function () { return series; };
      plot.getAxes = function () {
        var res = {}, i;
        $.each(xaxes.concat(yaxes), function (_, axis) {
          if (axis)
            res[axis.direction + (axis.n != 1 ? axis.n : "") + "axis"] = axis;
        });
        return res;
      };
      plot.getXAxes = function () { return xaxes; };
      plot.getYAxes = function () { return yaxes; };
      plot.c2p = canvasToAxisCoords;
      plot.p2c = axisToCanvasCoords;
      plot.getOptions = function () { return options; };
      plot.highlight = highlight;
      plot.unhighlight = unhighlight;
      plot.triggerRedrawOverlay = triggerRedrawOverlay;
      plot.pointOffset = function(point) {
        return {
          left: parseInt(xaxes[axisNumber(point, "x") - 1].p2c(+point.x) + plotOffset.left),
          top: parseInt(yaxes[axisNumber(point, "y") - 1].p2c(+point.y) + plotOffset.top)
        };
      };
      plot.shutdown = shutdown;
      plot.resize = function () {
        getCanvasDimensions();
        resizeCanvas(canvas);
        resizeCanvas(overlay);
      };
  
      // public attributes
      plot.hooks = hooks;
  
      // initialize
      initPlugins(plot);
      parseOptions(options_);
      setupCanvases();
      setData(data_);
      setupGrid();
      draw();
      bindEvents();
  
  
      function executeHooks(hook, args) {
        args = [plot].concat(args);
        for (var i = 0; i < hook.length; ++i)
          hook[i].apply(this, args);
      }
  
      function initPlugins() {
        for (var i = 0; i < plugins.length; ++i) {
          var p = plugins[i];
          p.init(plot);
          if (p.options)
            $.extend(true, options, p.options);
        }
      }
  
      function parseOptions(opts) {
        var i;
  
        $.extend(true, options, opts);
  
        if (options.xaxis.color == null)
          options.xaxis.color = options.grid.color;
        if (options.yaxis.color == null)
          options.yaxis.color = options.grid.color;
  
        if (options.xaxis.tickColor == null) // backwards-compatibility
          options.xaxis.tickColor = options.grid.tickColor;
        if (options.yaxis.tickColor == null) // backwards-compatibility
          options.yaxis.tickColor = options.grid.tickColor;
  
        if (options.grid.borderColor == null)
          options.grid.borderColor = options.grid.color;
        if (options.grid.tickColor == null)
          options.grid.tickColor = $.color.parse(options.grid.color).scale('a', 0.22).toString();
  
        // fill in defaults in axes, copy at least always the
        // first as the rest of the code assumes it'll be there
        for (i = 0; i < Math.max(1, options.xaxes.length); ++i)
          options.xaxes[i] = $.extend(true, {}, options.xaxis, options.xaxes[i]);
        for (i = 0; i < Math.max(1, options.yaxes.length); ++i)
          options.yaxes[i] = $.extend(true, {}, options.yaxis, options.yaxes[i]);
  
        // backwards compatibility, to be removed in future
        if (options.xaxis.noTicks && options.xaxis.ticks == null)
          options.xaxis.ticks = options.xaxis.noTicks;
        if (options.yaxis.noTicks && options.yaxis.ticks == null)
          options.yaxis.ticks = options.yaxis.noTicks;
        if (options.x2axis) {
          options.xaxes[1] = $.extend(true, {}, options.xaxis, options.x2axis);
          options.xaxes[1].position = "top";
        }
        if (options.y2axis) {
          options.yaxes[1] = $.extend(true, {}, options.yaxis, options.y2axis);
          options.yaxes[1].position = "right";
        }
        if (options.grid.coloredAreas)
          options.grid.markings = options.grid.coloredAreas;
        if (options.grid.coloredAreasColor)
          options.grid.markingsColor = options.grid.coloredAreasColor;
        if (options.lines)
          $.extend(true, options.series.lines, options.lines);
        if (options.points)
          $.extend(true, options.series.points, options.points);
        if (options.bars)
          $.extend(true, options.series.bars, options.bars);
        if (options.shadowSize != null)
          options.series.shadowSize = options.shadowSize;
  
        // save options on axes for future reference
        for (i = 0; i < options.xaxes.length; ++i)
          getOrCreateAxis(xaxes, i + 1).options = options.xaxes[i];
        for (i = 0; i < options.yaxes.length; ++i)
          getOrCreateAxis(yaxes, i + 1).options = options.yaxes[i];
  
        // add hooks from options
        for (var n in hooks)
          if (options.hooks[n] && options.hooks[n].length)
            hooks[n] = hooks[n].concat(options.hooks[n]);
  
        executeHooks(hooks.processOptions, [options]);
      }
  
      function setData(d) {
        series = parseData(d);
        fillInSeriesOptions();
        processData();
      }
  
      function parseData(d) {
        var res = [];
        for (var i = 0; i < d.length; ++i) {
          var s = $.extend(true, {}, options.series);
  
          if (d[i].data != null) {
            s.data = d[i].data; // move the data instead of deep-copy
            delete d[i].data;
  
            $.extend(true, s, d[i]);
  
            d[i].data = s.data;
          }
          else
            s.data = d[i];
          res.push(s);
        }
  
        return res;
      }
  
      function axisNumber(obj, coord) {
        var a = obj[coord + "axis"];
        if (typeof a == "object") // if we got a real axis, extract number
          a = a.n;
        if (typeof a != "number")
          a = 1; // default to first axis
        return a;
      }
  
      function allAxes() {
        // return flat array without annoying null entries
        return $.grep(xaxes.concat(yaxes), function (a) { return a; });
      }
  
      function canvasToAxisCoords(pos) {
        // return an object with x/y corresponding to all used axes
        var res = {}, i, axis;
        for (i = 0; i < xaxes.length; ++i) {
          axis = xaxes[i];
          if (axis && axis.used)
            res["x" + axis.n] = axis.c2p(pos.left);
        }
  
        for (i = 0; i < yaxes.length; ++i) {
          axis = yaxes[i];
          if (axis && axis.used)
            res["y" + axis.n] = axis.c2p(pos.top);
        }
  
        if (res.x1 !== undefined)
          res.x = res.x1;
        if (res.y1 !== undefined)
          res.y = res.y1;
  
        return res;
      }
  
      function axisToCanvasCoords(pos) {
        // get canvas coords from the first pair of x/y found in pos
        var res = {}, i, axis, key;
  
        for (i = 0; i < xaxes.length; ++i) {
          axis = xaxes[i];
          if (axis && axis.used) {
            key = "x" + axis.n;
            if (pos[key] == null && axis.n == 1)
              key = "x";
  
            if (pos[key] != null) {
              res.left = axis.p2c(pos[key]);
              break;
            }
          }
        }
  
        for (i = 0; i < yaxes.length; ++i) {
          axis = yaxes[i];
          if (axis && axis.used) {
            key = "y" + axis.n;
            if (pos[key] == null && axis.n == 1)
              key = "y";
  
            if (pos[key] != null) {
              res.top = axis.p2c(pos[key]);
              break;
            }
          }
        }
  
        return res;
      }
  
      function getOrCreateAxis(axes, number) {
        if (!axes[number - 1])
          axes[number - 1] = {
            n: number, // save the number for future reference
            direction: axes == xaxes ? "x" : "y",
            options: $.extend(true, {}, axes == xaxes ? options.xaxis : options.yaxis)
          };
  
        return axes[number - 1];
      }
  
      function fillInSeriesOptions() {
        var i;
  
        // collect what we already got of colors
        var neededColors = series.length,
          usedColors = [],
          assignedColors = [];
        for (i = 0; i < series.length; ++i) {
          var sc = series[i].color;
          if (sc != null) {
            --neededColors;
            if (typeof sc == "number")
              assignedColors.push(sc);
            else
              usedColors.push($.color.parse(series[i].color));
          }
        }
  
        // we might need to generate more colors if higher indices
        // are assigned
        for (i = 0; i < assignedColors.length; ++i) {
          neededColors = Math.max(neededColors, assignedColors[i] + 1);
        }
  
        // produce colors as needed
        var colors = [], variation = 0;
        i = 0;
        while (colors.length < neededColors) {
          var c;
          if (options.colors.length == i) // check degenerate case
            c = $.color.make(100, 100, 100);
          else
            c = $.color.parse(options.colors[i]);
  
          // vary color if needed
          var sign = variation % 2 == 1 ? -1 : 1;
          c.scale('rgb', 1 + sign * Math.ceil(variation / 2) * 0.2)
  
          // FIXME: if we're getting to close to something else,
          // we should probably skip this one
          colors.push(c);
  
          ++i;
          if (i >= options.colors.length) {
            i = 0;
            ++variation;
          }
        }
  
        // fill in the options
        var colori = 0, s;
        for (i = 0; i < series.length; ++i) {
          s = series[i];
  
          // assign colors
          if (s.color == null) {
            s.color = colors[colori].toString();
            ++colori;
          }
          else if (typeof s.color == "number")
            s.color = colors[s.color].toString();
  
          // turn on lines automatically in case nothing is set
          if (s.lines.show == null) {
            var v, show = true;
            for (v in s)
              if (s[v] && s[v].show) {
                show = false;
                break;
              }
            if (show)
              s.lines.show = true;
          }
  
          // setup axes
          s.xaxis = getOrCreateAxis(xaxes, axisNumber(s, "x"));
          s.yaxis = getOrCreateAxis(yaxes, axisNumber(s, "y"));
        }
      }
  
      function processData() {
        var topSentry = Number.POSITIVE_INFINITY,
          bottomSentry = Number.NEGATIVE_INFINITY,
          fakeInfinity = Number.MAX_VALUE,
          i, j, k, m, length,
          s, points, ps, x, y, axis, val, f, p;
  
        function updateAxis(axis, min, max) {
          if (min < axis.datamin && min != -fakeInfinity)
            axis.datamin = min;
          if (max > axis.datamax && max != fakeInfinity)
            axis.datamax = max;
        }
  
        $.each(allAxes(), function (_, axis) {
          // init axis
          axis.datamin = topSentry;
          axis.datamax = bottomSentry;
          axis.used = false;
        });
  
        for (i = 0; i < series.length; ++i) {
          s = series[i];
          s.datapoints = { points: [] };
  
          executeHooks(hooks.processRawData, [ s, s.data, s.datapoints ]);
        }
  
        // first pass: clean and copy data
        for (i = 0; i < series.length; ++i) {
          s = series[i];
  
          var data = s.data, format = s.datapoints.format;
  
          if (!format) {
            format = [];
            // find out how to copy
            format.push({ x: true, number: true, required: true });
            format.push({ y: true, number: true, required: true });
  
            if (s.bars.show || (s.lines.show && s.lines.fill)) {
              format.push({ y: true, number: true, required: false, defaultValue: 0 });
              if (s.bars.horizontal) {
                delete format[format.length - 1].y;
                format[format.length - 1].x = true;
              }
            }
  
            s.datapoints.format = format;
          }
  
          if (s.datapoints.pointsize != null)
            continue; // already filled in
  
          s.datapoints.pointsize = format.length;
  
          ps = s.datapoints.pointsize;
          points = s.datapoints.points;
  
          insertSteps = s.lines.show && s.lines.steps;
          s.xaxis.used = s.yaxis.used = true;
  
          for (j = k = 0; j < data.length; ++j, k += ps) {
            p = data[j];
  
            var nullify = p == null;
            if (!nullify) {
              for (m = 0; m < ps; ++m) {
                val = p[m];
                f = format[m];
  
                if (f) {
                  if (f.number && val != null) {
                    val = +val; // convert to number
                    if (isNaN(val))
                      val = null;
                    else if (val == Infinity)
                      val = fakeInfinity;
                    else if (val == -Infinity)
                      val = -fakeInfinity;
                  }
  
                  if (val == null) {
                    if (f.required)
                      nullify = true;
  
                    if (f.defaultValue != null)
                      val = f.defaultValue;
                  }
                }
  
                points[k + m] = val;
              }
            }
  
            if (nullify) {
              for (m = 0; m < ps; ++m) {
                val = points[k + m];
                if (val != null) {
                  f = format[m];
                  // extract min/max info
                  if (f.x)
                    updateAxis(s.xaxis, val, val);
                  if (f.y)
                    updateAxis(s.yaxis, val, val);
                }
                points[k + m] = null;
              }
            }
            else {
              // a little bit of line specific stuff that
              // perhaps shouldn't be here, but lacking
              // better means...
              if (insertSteps && k > 0
                && points[k - ps] != null
                && points[k - ps] != points[k]
                && points[k - ps + 1] != points[k + 1]) {
                // copy the point to make room for a middle point
                for (m = 0; m < ps; ++m)
                  points[k + ps + m] = points[k + m];
  
                // middle point has same y
                points[k + 1] = points[k - ps + 1];
  
                // we've added a point, better reflect that
                k += ps;
              }
            }
          }
        }
  
        // give the hooks a chance to run
        for (i = 0; i < series.length; ++i) {
          s = series[i];
  
          executeHooks(hooks.processDatapoints, [ s, s.datapoints]);
        }
  
        // second pass: find datamax/datamin for auto-scaling
        for (i = 0; i < series.length; ++i) {
          s = series[i];
          points = s.datapoints.points,
            ps = s.datapoints.pointsize;
  
          var xmin = topSentry, ymin = topSentry,
            xmax = bottomSentry, ymax = bottomSentry;
  
          for (j = 0; j < points.length; j += ps) {
            if (points[j] == null)
              continue;
  
            for (m = 0; m < ps; ++m) {
              val = points[j + m];
              f = format[m];
              if (!f || val == fakeInfinity || val == -fakeInfinity)
                continue;
  
              if (f.x) {
                if (val < xmin)
                  xmin = val;
                if (val > xmax)
                  xmax = val;
              }
              if (f.y) {
                if (val < ymin)
                  ymin = val;
                if (val > ymax)
                  ymax = val;
              }
            }
          }
  
          if (s.bars.show) {
            // make sure we got room for the bar on the dancing floor
            var delta = s.bars.align == "left" ? 0 : -s.bars.barWidth/2;
            if (s.bars.horizontal) {
              ymin += delta;
              ymax += delta + s.bars.barWidth;
            }
            else {
              xmin += delta;
              xmax += delta + s.bars.barWidth;
            }
          }
  
          updateAxis(s.xaxis, xmin, xmax);
          updateAxis(s.yaxis, ymin, ymax);
        }
  
        $.each(allAxes(), function (_, axis) {
          if (axis.datamin == topSentry)
            axis.datamin = null;
          if (axis.datamax == bottomSentry)
            axis.datamax = null;
        });
      }
  
      function makeCanvas(skipPositioning, cls) {
        var c = document.createElement('canvas');
        c.className = cls;
        c.width = canvasWidth;
        c.height = canvasHeight;
  
        if (!skipPositioning)
          $(c).css({ position: 'absolute', left: 0, top: 0 });
  
        $(c).appendTo(placeholder);
  
        if (!c.getContext) // excanvas hack
          c = window.G_vmlCanvasManager.initElement(c);
  
        // used for resetting in case we get replotted
        c.getContext("2d").save();
  
        return c;
      }
  
      function getCanvasDimensions() {
        canvasWidth = placeholder.width();
        canvasHeight = placeholder.height();
  
        if (canvasWidth <= 0 || canvasHeight <= 0)
          throw "Invalid dimensions for plot, width = " + canvasWidth + ", height = " + canvasHeight;
      }
  
      function resizeCanvas(c) {
        // resizing should reset the state (excanvas seems to be
        // buggy though)
        if (c.width != canvasWidth)
          c.width = canvasWidth;
  
        if (c.height != canvasHeight)
          c.height = canvasHeight;
  
        // so try to get back to the initial state (even if it's
        // gone now, this should be safe according to the spec)
        var cctx = c.getContext("2d");
        cctx.restore();
  
        // and save again
        cctx.save();
      }
  
      function setupCanvases() {
        var reused,
          existingCanvas = placeholder.children("canvas.base"),
          existingOverlay = placeholder.children("canvas.overlay");
  
        if (existingCanvas.length == 0 || existingOverlay == 0) {
          // init everything
  
          placeholder.html(""); // make sure placeholder is clear
  
          placeholder.css({ padding: 0 }); // padding messes up the positioning
  
          if (placeholder.css("position") == 'static')
            placeholder.css("position", "relative"); // for positioning labels and overlay
  
          getCanvasDimensions();
  
          canvas = makeCanvas(true, "base");
          overlay = makeCanvas(false, "overlay"); // overlay canvas for interactive features
  
          reused = false;
        }
        else {
          // reuse existing elements
  
          canvas = existingCanvas.get(0);
          overlay = existingOverlay.get(0);
  
          reused = true;
        }
  
        ctx = canvas.getContext("2d");
        octx = overlay.getContext("2d");
  
        // we include the canvas in the event holder too, because IE 7
        // sometimes has trouble with the stacking order
        eventHolder = $([overlay, canvas]);
  
        if (reused) {
          // run shutdown in the old plot object
          placeholder.data("plot").shutdown();
  
          // reset reused canvases
          plot.resize();
  
          // make sure overlay pixels are cleared (canvas is cleared when we redraw)
          octx.clearRect(0, 0, canvasWidth, canvasHeight);
  
          // then whack any remaining obvious garbage left
          eventHolder.unbind();
          placeholder.children().not([canvas, overlay]).remove();
        }
  
        // save in case we get replotted
        placeholder.data("plot", plot);
      }
  
      function bindEvents() {
        // bind events
        if (options.grid.hoverable) {
          eventHolder.mousemove(onMouseMove);
          eventHolder.mouseleave(onMouseLeave);
        }
  
        if (options.grid.clickable)
          eventHolder.click(onClick);
  
        executeHooks(hooks.bindEvents, [eventHolder]);
      }
  
      function shutdown() {
        if (redrawTimeout)
          clearTimeout(redrawTimeout);
  
        eventHolder.unbind("mousemove", onMouseMove);
        eventHolder.unbind("mouseleave", onMouseLeave);
        eventHolder.unbind("click", onClick);
  
        executeHooks(hooks.shutdown, [eventHolder]);
      }
  
      function setTransformationHelpers(axis) {
        // set helper functions on the axis, assumes plot area
        // has been computed already
  
        function identity(x) { return x; }
  
        var s, m, t = axis.options.transform || identity,
          it = axis.options.inverseTransform;
  
        // precompute how much the axis is scaling a point
        // in canvas space
        if (axis.direction == "x") {
          s = axis.scale = plotWidth / Math.abs(t(axis.max) - t(axis.min));
          m = Math.min(t(axis.max), t(axis.min));
        }
        else {
          s = axis.scale = plotHeight / Math.abs(t(axis.max) - t(axis.min));
          s = -s;
          m = Math.max(t(axis.max), t(axis.min));
        }
  
        // data point to canvas coordinate
        if (t == identity) // slight optimization
          axis.p2c = function (p) { return (p - m) * s; };
        else
          axis.p2c = function (p) { return (t(p) - m) * s; };
        // canvas coordinate to data point
        if (!it)
          axis.c2p = function (c) { return m + c / s; };
        else
          axis.c2p = function (c) { return it(m + c / s); };
      }
  
      function measureTickLabels(axis) {
        var opts = axis.options, i, ticks = axis.ticks || [], labels = [],
          l, w = opts.labelWidth, h = opts.labelHeight, dummyDiv;
  
        function makeDummyDiv(labels, width) {
          return $('<div style="position:absolute;top:-10000px;' + width + 'font-size:smaller">' +
            '<div class="' + axis.direction + 'Axis ' + axis.direction + axis.n + 'Axis">'
            + labels.join("") + '</div></div>')
            .appendTo(placeholder);
        }
  
        if (axis.direction == "x") {
          // to avoid measuring the widths of the labels (it's slow), we
          // construct fixed-size boxes and put the labels inside
          // them, we don't need the exact figures and the
          // fixed-size box content is easy to center
          if (w == null)
            w = Math.floor(canvasWidth / (ticks.length > 0 ? ticks.length : 1));
  
          // measure x label heights
          if (h == null) {
            labels = [];
            for (i = 0; i < ticks.length; ++i) {
              l = ticks[i].label;
              if (l)
                labels.push('<div class="tickLabel" style="float:left;width:' + w + 'px">' + l + '</div>');
            }
  
            if (labels.length > 0) {
              // stick them all in the same div and measure
              // collective height
              labels.push('<div style="clear:left"></div>');
              dummyDiv = makeDummyDiv(labels, "width:10000px;");
              h = dummyDiv.height();
              dummyDiv.remove();
            }
          }
        }
        else if (w == null || h == null) {
          // calculate y label dimensions
          for (i = 0; i < ticks.length; ++i) {
            l = ticks[i].label;
            if (l)
              labels.push('<div class="tickLabel">' + l + '</div>');
          }
  
          if (labels.length > 0) {
            dummyDiv = makeDummyDiv(labels, "");
            if (w == null)
              w = dummyDiv.children().width();
            if (h == null)
              h = dummyDiv.find("div.tickLabel").height();
            dummyDiv.remove();
          }
        }
  
        if (w == null)
          w = 0;
        if (h == null)
          h = 0;
  
        axis.labelWidth = w;
        axis.labelHeight = h;
      }
  
      function allocateAxisBoxFirstPhase(axis) {
        // find the bounding box of the axis by looking at label
        // widths/heights and ticks, make room by diminishing the
        // plotOffset
  
        var lw = axis.labelWidth,
          lh = axis.labelHeight,
          pos = axis.options.position,
          tickLength = axis.options.tickLength,
          axismargin = options.grid.axisMargin,
          padding = options.grid.labelMargin,
          all = axis.direction == "x" ? xaxes : yaxes,
          index;
  
        // determine axis margin
        var samePosition = $.grep(all, function (a) {
          return a && a.options.position == pos && a.reserveSpace;
        });
        if ($.inArray(axis, samePosition) == samePosition.length - 1)
          axismargin = 0; // outermost
  
        // determine tick length - if we're innermost, we can use "full"
        if (tickLength == null)
          tickLength = "full";
  
        var sameDirection = $.grep(all, function (a) {
          return a && a.reserveSpace;
        });
  
        var innermost = $.inArray(axis, sameDirection) == 0;
        if (!innermost && tickLength == "full")
          tickLength = 5;
  
        if (!isNaN(+tickLength))
          padding += +tickLength;
  
        // compute box
        if (axis.direction == "x") {
          lh += padding;
  
          if (pos == "bottom") {
            plotOffset.bottom += lh + axismargin;
            axis.box = { top: canvasHeight - plotOffset.bottom, height: lh };
          }
          else {
            axis.box = { top: plotOffset.top + axismargin, height: lh };
            plotOffset.top += lh + axismargin;
          }
        }
        else {
          lw += padding;
  
          if (pos == "left") {
            axis.box = { left: plotOffset.left + axismargin, width: lw };
            plotOffset.left += lw + axismargin;
          }
          else {
            plotOffset.right += lw + axismargin;
            axis.box = { left: canvasWidth - plotOffset.right, width: lw };
          }
        }
  
        // save for future reference
        axis.position = pos;
        axis.tickLength = tickLength;
        axis.box.padding = padding;
        axis.innermost = innermost;
      }
  
      function allocateAxisBoxSecondPhase(axis) {
        // set remaining bounding box coordinates
        if (axis.direction == "x") {
          axis.box.left = plotOffset.left;
          axis.box.width = plotWidth;
        }
        else {
          axis.box.top = plotOffset.top;
          axis.box.height = plotHeight;
        }
      }
  
      function setupGrid() {
        var i, axes = allAxes();
  
        // first calculate the plot and axis box dimensions
  
        $.each(axes, function (_, axis) {
          axis.show = axis.options.show;
          if (axis.show == null)
            axis.show = axis.used; // by default an axis is visible if it's got data
  
          axis.reserveSpace = axis.show || axis.options.reserveSpace;
  
          setRange(axis);
        });
  
        allocatedAxes = $.grep(axes, function (axis) { return axis.reserveSpace; });
  
        plotOffset.left = plotOffset.right = plotOffset.top = plotOffset.bottom = 0;
        if (options.grid.show) {
          $.each(allocatedAxes, function (_, axis) {
            // make the ticks
            setupTickGeneration(axis);
            setTicks(axis);
            snapRangeToTicks(axis, axis.ticks);
  
            // find labelWidth/Height for axis
            measureTickLabels(axis);
          });
  
          // with all dimensions in house, we can compute the
          // axis boxes, start from the outside (reverse order)
          for (i = allocatedAxes.length - 1; i >= 0; --i)
            allocateAxisBoxFirstPhase(allocatedAxes[i]);
  
          // make sure we've got enough space for things that
          // might stick out
          var minMargin = options.grid.minBorderMargin;
          if (minMargin == null) {
            minMargin = 0;
            for (i = 0; i < series.length; ++i)
              minMargin = Math.max(minMargin, series[i].points.radius + series[i].points.lineWidth/2);
          }
  
          for (var a in plotOffset) {
            plotOffset[a] += options.grid.borderWidth;
            plotOffset[a] = Math.max(minMargin, plotOffset[a]);
          }
        }
  
        plotWidth = canvasWidth - plotOffset.left - plotOffset.right;
        plotHeight = canvasHeight - plotOffset.bottom - plotOffset.top;
  
        // now we got the proper plotWidth/Height, we can compute the scaling
        $.each(axes, function (_, axis) {
          setTransformationHelpers(axis);
        });
  
        if (options.grid.show) {
          $.each(allocatedAxes, function (_, axis) {
            allocateAxisBoxSecondPhase(axis);
          });
  
          insertAxisLabels();
        }
  
        insertLegend();
      }
  
      function setRange(axis) {
        var opts = axis.options,
          min = +(opts.min != null ? opts.min : axis.datamin),
          max = +(opts.max != null ? opts.max : axis.datamax),
          delta = max - min;
  
        if (delta == 0.0) {
          // degenerate case
          var widen = max == 0 ? 1 : 0.01;
  
          if (opts.min == null)
            min -= widen;
          // always widen max if we couldn't widen min to ensure we
          // don't fall into min == max which doesn't work
          if (opts.max == null || opts.min != null)
            max += widen;
        }
        else {
          // consider autoscaling
          var margin = opts.autoscaleMargin;
          if (margin != null) {
            if (opts.min == null) {
              min -= delta * margin;
              // make sure we don't go below zero if all values
              // are positive
              if (min < 0 && axis.datamin != null && axis.datamin >= 0)
                min = 0;
            }
            if (opts.max == null) {
              max += delta * margin;
              if (max > 0 && axis.datamax != null && axis.datamax <= 0)
                max = 0;
            }
          }
        }
        axis.min = min;
        axis.max = max;
      }
  
      function setupTickGeneration(axis) {
        var opts = axis.options;
  
        // estimate number of ticks
        var noTicks;
        if (typeof opts.ticks == "number" && opts.ticks > 0)
          noTicks = opts.ticks;
        else
        // heuristic based on the model a*sqrt(x) fitted to
        // some data points that seemed reasonable
          noTicks = 0.3 * Math.sqrt(axis.direction == "x" ? canvasWidth : canvasHeight);
  
        var delta = (axis.max - axis.min) / noTicks,
          size, generator, unit, formatter, i, magn, norm;
  
        if (opts.mode == "time") {
          // pretty handling of time
  
          // map of app. size of time units in milliseconds
          var timeUnitSize = {
            "second": 1000,
            "minute": 60 * 1000,
            "hour": 60 * 60 * 1000,
            "day": 24 * 60 * 60 * 1000,
            "month": 30 * 24 * 60 * 60 * 1000,
            "year": 365.2425 * 24 * 60 * 60 * 1000
          };
  
  
          // the allowed tick sizes, after 1 year we use
          // an integer algorithm
          var spec = [
            [1, "second"], [2, "second"], [5, "second"], [10, "second"],
            [30, "second"],
            [1, "minute"], [2, "minute"], [5, "minute"], [10, "minute"],
            [30, "minute"],
            [1, "hour"], [2, "hour"], [4, "hour"],
            [8, "hour"], [12, "hour"],
            [1, "day"], [2, "day"], [3, "day"],
            [0.25, "month"], [0.5, "month"], [1, "month"],
            [2, "month"], [3, "month"], [6, "month"],
            [1, "year"]
          ];
  
          var minSize = 0;
          if (opts.minTickSize != null) {
            if (typeof opts.tickSize == "number")
              minSize = opts.tickSize;
            else
              minSize = opts.minTickSize[0] * timeUnitSize[opts.minTickSize[1]];
          }
  
          for (var i = 0; i < spec.length - 1; ++i)
            if (delta < (spec[i][0] * timeUnitSize[spec[i][1]]
              + spec[i + 1][0] * timeUnitSize[spec[i + 1][1]]) / 2
              && spec[i][0] * timeUnitSize[spec[i][1]] >= minSize)
              break;
          size = spec[i][0];
          unit = spec[i][1];
  
          // special-case the possibility of several years
          if (unit == "year") {
            magn = Math.pow(10, Math.floor(Math.log(delta / timeUnitSize.year) / Math.LN10));
            norm = (delta / timeUnitSize.year) / magn;
            if (norm < 1.5)
              size = 1;
            else if (norm < 3)
              size = 2;
            else if (norm < 7.5)
              size = 5;
            else
              size = 10;
  
            size *= magn;
          }
  
          axis.tickSize = opts.tickSize || [size, unit];
  
          generator = function(axis) {
            var ticks = [],
              tickSize = axis.tickSize[0], unit = axis.tickSize[1],
              d = new Date(axis.min);
  
            var step = tickSize * timeUnitSize[unit];
  
            if (unit == "second")
              d.setUTCSeconds(floorInBase(d.getUTCSeconds(), tickSize));
            if (unit == "minute")
              d.setUTCMinutes(floorInBase(d.getUTCMinutes(), tickSize));
            if (unit == "hour")
              d.setUTCHours(floorInBase(d.getUTCHours(), tickSize));
            if (unit == "month")
              d.setUTCMonth(floorInBase(d.getUTCMonth(), tickSize));
            if (unit == "year")
              d.setUTCFullYear(floorInBase(d.getUTCFullYear(), tickSize));
  
            // reset smaller components
            d.setUTCMilliseconds(0);
            if (step >= timeUnitSize.minute)
              d.setUTCSeconds(0);
            if (step >= timeUnitSize.hour)
              d.setUTCMinutes(0);
            if (step >= timeUnitSize.day)
              d.setUTCHours(0);
            if (step >= timeUnitSize.day * 4)
              d.setUTCDate(1);
            if (step >= timeUnitSize.year)
              d.setUTCMonth(0);
  
  
            var carry = 0, v = Number.NaN, prev;
            do {
              prev = v;
              v = d.getTime();
              ticks.push(v);
              if (unit == "month") {
                if (tickSize < 1) {
                  // a bit complicated - we'll divide the month
                  // up but we need to take care of fractions
                  // so we don't end up in the middle of a day
                  d.setUTCDate(1);
                  var start = d.getTime();
                  d.setUTCMonth(d.getUTCMonth() + 1);
                  var end = d.getTime();
                  d.setTime(v + carry * timeUnitSize.hour + (end - start) * tickSize);
                  carry = d.getUTCHours();
                  d.setUTCHours(0);
                }
                else
                  d.setUTCMonth(d.getUTCMonth() + tickSize);
              }
              else if (unit == "year") {
                d.setUTCFullYear(d.getUTCFullYear() + tickSize);
              }
              else
                d.setTime(v + step);
            } while (v < axis.max && v != prev);
  
            return ticks;
          };
  
          formatter = function (v, axis) {
            var d = new Date(v);
  
            // first check global format
            if (opts.timeformat != null)
              return $.plot.formatDate(d, opts.timeformat, opts.monthNames);
  
            var t = axis.tickSize[0] * timeUnitSize[axis.tickSize[1]];
            var span = axis.max - axis.min;
            var suffix = (opts.twelveHourClock) ? " %p" : "";
  
            if (t < timeUnitSize.minute)
              fmt = "%h:%M:%S" + suffix;
            else if (t < timeUnitSize.day) {
              if (span < 2 * timeUnitSize.day)
                fmt = "%h:%M" + suffix;
              else
                fmt = "%b %d %h:%M" + suffix;
            }
            else if (t < timeUnitSize.month)
              fmt = "%b %d";
            else if (t < timeUnitSize.year) {
              if (span < timeUnitSize.year)
                fmt = "%b";
              else
                fmt = "%b %y";
            }
            else
              fmt = "%y";
  
            return $.plot.formatDate(d, fmt, opts.monthNames);
          };
        }
        else {
          // pretty rounding of base-10 numbers
          var maxDec = opts.tickDecimals;
          var dec = -Math.floor(Math.log(delta) / Math.LN10);
          if (maxDec != null && dec > maxDec)
            dec = maxDec;
  
          magn = Math.pow(10, -dec);
          norm = delta / magn; // norm is between 1.0 and 10.0
  
          if (norm < 1.5)
            size = 1;
          else if (norm < 3) {
            size = 2;
            // special case for 2.5, requires an extra decimal
            if (norm > 2.25 && (maxDec == null || dec + 1 <= maxDec)) {
              size = 2.5;
              ++dec;
            }
          }
          else if (norm < 7.5)
            size = 5;
          else
            size = 10;
  
          size *= magn;
  
          if (opts.minTickSize != null && size < opts.minTickSize)
            size = opts.minTickSize;
  
          axis.tickDecimals = Math.max(0, maxDec != null ? maxDec : dec);
          axis.tickSize = opts.tickSize || size;
  
          generator = function (axis) {
            var ticks = [];
  
            // spew out all possible ticks
            var start = floorInBase(axis.min, axis.tickSize),
              i = 0, v = Number.NaN, prev;
            do {
              prev = v;
              v = start + i * axis.tickSize;
              ticks.push(v);
              ++i;
            } while (v < axis.max && v != prev);
            return ticks;
          };
  
          formatter = function (v, axis) {
            return v.toFixed(axis.tickDecimals);
          };
        }
  
        if (opts.alignTicksWithAxis != null) {
          var otherAxis = (axis.direction == "x" ? xaxes : yaxes)[opts.alignTicksWithAxis - 1];
          if (otherAxis && otherAxis.used && otherAxis != axis) {
            // consider snapping min/max to outermost nice ticks
            var niceTicks = generator(axis);
            if (niceTicks.length > 0) {
              if (opts.min == null)
                axis.min = Math.min(axis.min, niceTicks[0]);
              if (opts.max == null && niceTicks.length > 1)
                axis.max = Math.max(axis.max, niceTicks[niceTicks.length - 1]);
            }
  
            generator = function (axis) {
              // copy ticks, scaled to this axis
              var ticks = [], v, i;
              for (i = 0; i < otherAxis.ticks.length; ++i) {
                v = (otherAxis.ticks[i].v - otherAxis.min) / (otherAxis.max - otherAxis.min);
                v = axis.min + v * (axis.max - axis.min);
                ticks.push(v);
              }
              return ticks;
            };
  
            // we might need an extra decimal since forced
            // ticks don't necessarily fit naturally
            if (axis.mode != "time" && opts.tickDecimals == null) {
              var extraDec = Math.max(0, -Math.floor(Math.log(delta) / Math.LN10) + 1),
                ts = generator(axis);
  
              // only proceed if the tick interval rounded
              // with an extra decimal doesn't give us a
              // zero at end
              if (!(ts.length > 1 && /\..*0$/.test((ts[1] - ts[0]).toFixed(extraDec))))
                axis.tickDecimals = extraDec;
            }
          }
        }
  
        axis.tickGenerator = generator;
        if ($.isFunction(opts.tickFormatter))
          axis.tickFormatter = function (v, axis) { return "" + opts.tickFormatter(v, axis); };
        else
          axis.tickFormatter = formatter;
      }
  
      function setTicks(axis) {
        var oticks = axis.options.ticks, ticks = [];
        if (oticks == null || (typeof oticks == "number" && oticks > 0))
          ticks = axis.tickGenerator(axis);
        else if (oticks) {
          if ($.isFunction(oticks))
          // generate the ticks
            ticks = oticks({ min: axis.min, max: axis.max });
          else
            ticks = oticks;
        }
  
        // clean up/labelify the supplied ticks, copy them over
        var i, v;
        axis.ticks = [];
        for (i = 0; i < ticks.length; ++i) {
          var label = null;
          var t = ticks[i];
          if (typeof t == "object") {
            v = +t[0];
            if (t.length > 1)
              label = t[1];
          }
          else
            v = +t;
          if (label == null)
            label = axis.tickFormatter(v, axis);
          if (!isNaN(v))
            axis.ticks.push({ v: v, label: label });
        }
      }
  
      function snapRangeToTicks(axis, ticks) {
        if (axis.options.autoscaleMargin && ticks.length > 0) {
          // snap to ticks
          if (axis.options.min == null)
            axis.min = Math.min(axis.min, ticks[0].v);
          if (axis.options.max == null && ticks.length > 1)
            axis.max = Math.max(axis.max, ticks[ticks.length - 1].v);
        }
      }
  
      function draw() {
        ctx.clearRect(0, 0, canvasWidth, canvasHeight);
  
        var grid = options.grid;
  
        // draw background, if any
        if (grid.show && grid.backgroundColor)
          drawBackground();
  
        if (grid.show && !grid.aboveData)
          drawGrid();
  
        for (var i = 0; i < series.length; ++i) {
          executeHooks(hooks.drawSeries, [ctx, series[i]]);
          drawSeries(series[i]);
        }
  
        executeHooks(hooks.draw, [ctx]);
  
        if (grid.show && grid.aboveData)
          drawGrid();
      }
  
      function extractRange(ranges, coord) {
        var axis, from, to, key, axes = allAxes();
  
        for (i = 0; i < axes.length; ++i) {
          axis = axes[i];
          if (axis.direction == coord) {
            key = coord + axis.n + "axis";
            if (!ranges[key] && axis.n == 1)
              key = coord + "axis"; // support x1axis as xaxis
            if (ranges[key]) {
              from = ranges[key].from;
              to = ranges[key].to;
              break;
            }
          }
        }
  
        // backwards-compat stuff - to be removed in future
        if (!ranges[key]) {
          axis = coord == "x" ? xaxes[0] : yaxes[0];
          from = ranges[coord + "1"];
          to = ranges[coord + "2"];
        }
  
        // auto-reverse as an added bonus
        if (from != null && to != null && from > to) {
          var tmp = from;
          from = to;
          to = tmp;
        }
  
        return { from: from, to: to, axis: axis };
      }
  
      function drawBackground() {
        ctx.save();
        ctx.translate(plotOffset.left, plotOffset.top);
  
        ctx.fillStyle = getColorOrGradient(options.grid.backgroundColor, plotHeight, 0, "rgba(255, 255, 255, 0)");
        ctx.fillRect(0, 0, plotWidth, plotHeight);
        ctx.restore();
      }
  
      function drawGrid() {
        var i;
  
        ctx.save();
        ctx.translate(plotOffset.left, plotOffset.top);
  
        // draw markings
        var markings = options.grid.markings;
        if (markings) {
          if ($.isFunction(markings)) {
            var axes = plot.getAxes();
            // xmin etc. is backwards compatibility, to be
            // removed in the future
            axes.xmin = axes.xaxis.min;
            axes.xmax = axes.xaxis.max;
            axes.ymin = axes.yaxis.min;
            axes.ymax = axes.yaxis.max;
  
            markings = markings(axes);
          }
  
          for (i = 0; i < markings.length; ++i) {
            var m = markings[i],
              xrange = extractRange(m, "x"),
              yrange = extractRange(m, "y");
  
            // fill in missing
            if (xrange.from == null)
              xrange.from = xrange.axis.min;
            if (xrange.to == null)
              xrange.to = xrange.axis.max;
            if (yrange.from == null)
              yrange.from = yrange.axis.min;
            if (yrange.to == null)
              yrange.to = yrange.axis.max;
  
            // clip
            if (xrange.to < xrange.axis.min || xrange.from > xrange.axis.max ||
              yrange.to < yrange.axis.min || yrange.from > yrange.axis.max)
              continue;
  
            xrange.from = Math.max(xrange.from, xrange.axis.min);
            xrange.to = Math.min(xrange.to, xrange.axis.max);
            yrange.from = Math.max(yrange.from, yrange.axis.min);
            yrange.to = Math.min(yrange.to, yrange.axis.max);
  
            if (xrange.from == xrange.to && yrange.from == yrange.to)
              continue;
  
            // then draw
            xrange.from = xrange.axis.p2c(xrange.from);
            xrange.to = xrange.axis.p2c(xrange.to);
            yrange.from = yrange.axis.p2c(yrange.from);
            yrange.to = yrange.axis.p2c(yrange.to);
  
            if (xrange.from == xrange.to || yrange.from == yrange.to) {
              // draw line
              ctx.beginPath();
              ctx.strokeStyle = m.color || options.grid.markingsColor;
              ctx.lineWidth = m.lineWidth || options.grid.markingsLineWidth;
              ctx.moveTo(xrange.from, yrange.from);
              ctx.lineTo(xrange.to, yrange.to);
              ctx.stroke();
            }
            else {
              // fill area
              ctx.fillStyle = m.color || options.grid.markingsColor;
              ctx.fillRect(xrange.from, yrange.to,
                xrange.to - xrange.from,
                yrange.from - yrange.to);
            }
          }
        }
  
        // draw the ticks
        var axes = allAxes(), bw = options.grid.borderWidth;
  
        for (var j = 0; j < axes.length; ++j) {
          var axis = axes[j], box = axis.box,
            t = axis.tickLength, x, y, xoff, yoff;
          if (!axis.show || axis.ticks.length == 0)
            continue
  
          ctx.strokeStyle = axis.options.tickColor || $.color.parse(axis.options.color).scale('a', 0.22).toString();
          ctx.lineWidth = 1;
  
          // find the edges
          if (axis.direction == "x") {
            x = 0;
            if (t == "full")
              y = (axis.position == "top" ? 0 : plotHeight);
            else
              y = box.top - plotOffset.top + (axis.position == "top" ? box.height : 0);
          }
          else {
            y = 0;
            if (t == "full")
              x = (axis.position == "left" ? 0 : plotWidth);
            else
              x = box.left - plotOffset.left + (axis.position == "left" ? box.width : 0);
          }
  
          // draw tick bar
          if (!axis.innermost) {
            ctx.beginPath();
            xoff = yoff = 0;
            if (axis.direction == "x")
              xoff = plotWidth;
            else
              yoff = plotHeight;
  
            if (ctx.lineWidth == 1) {
              x = Math.floor(x) + 0.5;
              y = Math.floor(y) + 0.5;
            }
  
            ctx.moveTo(x, y);
            ctx.lineTo(x + xoff, y + yoff);
            ctx.stroke();
          }
  
          // draw ticks
          ctx.beginPath();
          for (i = 0; i < axis.ticks.length; ++i) {
            var v = axis.ticks[i].v;
  
            xoff = yoff = 0;
  
            if (v < axis.min || v > axis.max
              // skip those lying on the axes if we got a border
              || (t == "full" && bw > 0
              && (v == axis.min || v == axis.max)))
              continue;
  
            if (axis.direction == "x") {
              x = axis.p2c(v);
              yoff = t == "full" ? -plotHeight : t;
  
              if (axis.position == "top")
                yoff = -yoff;
            }
            else {
              y = axis.p2c(v);
              xoff = t == "full" ? -plotWidth : t;
  
              if (axis.position == "left")
                xoff = -xoff;
            }
  
            if (ctx.lineWidth == 1) {
              if (axis.direction == "x")
                x = Math.floor(x) + 0.5;
              else
                y = Math.floor(y) + 0.5;
            }
  
            ctx.moveTo(x, y);
            ctx.lineTo(x + xoff, y + yoff);
          }
  
          ctx.stroke();
        }
  
  
        // draw border
        if (bw) {
          ctx.lineWidth = bw;
          ctx.strokeStyle = options.grid.borderColor;
          ctx.strokeRect(-bw/2, -bw/2, plotWidth + bw, plotHeight + bw);
        }
  
        ctx.restore();
      }
  
      function insertAxisLabels() {
        placeholder.find(".tickLabels").remove();
  
        var html = ['<div class="tickLabels" style="font-size:smaller">'];
  
        var axes = allAxes();
        for (var j = 0; j < axes.length; ++j) {
          var axis = axes[j], box = axis.box;
          if (!axis.show)
            continue;
          //debug: html.push('<div style="position:absolute;opacity:0.10;background-color:red;left:' + box.left + 'px;top:' + box.top + 'px;width:' + box.width +  'px;height:' + box.height + 'px"></div>')
          html.push('<div class="' + axis.direction + 'Axis ' + axis.direction + axis.n + 'Axis" style="color:' + axis.options.color + '">');
          for (var i = 0; i < axis.ticks.length; ++i) {
            var tick = axis.ticks[i];
            if (!tick.label || tick.v < axis.min || tick.v > axis.max)
              continue;
  
            var pos = {}, align;
  
            if (axis.direction == "x") {
              align = "center";
              pos.left = Math.round(plotOffset.left + axis.p2c(tick.v) - axis.labelWidth/2);
              if (axis.position == "bottom")
                pos.top = box.top + box.padding;
              else
                pos.bottom = canvasHeight - (box.top + box.height - box.padding);
            }
            else {
              pos.top = Math.round(plotOffset.top + axis.p2c(tick.v) - axis.labelHeight/2);
              if (axis.position == "left") {
                pos.right = canvasWidth - (box.left + box.width - box.padding)
                align = "right";
              }
              else {
                pos.left = box.left + box.padding;
                align = "left";
              }
            }
  
            pos.width = axis.labelWidth;
  
            var style = ["position:absolute", "text-align:" + align ];
            for (var a in pos)
              style.push(a + ":" + pos[a] + "px")
  
            html.push('<div class="tickLabel" style="' + style.join(';') + '">' + tick.label + '</div>');
          }
          html.push('</div>');
        }
  
        html.push('</div>');
  
        placeholder.append(html.join(""));
      }
  
      function drawSeries(series) {
        if (series.lines.show)
          drawSeriesLines(series);
        if (series.bars.show)
          drawSeriesBars(series);
        if (series.points.show)
          drawSeriesPoints(series);
      }
  
      function drawSeriesLines(series) {
        function plotLine(datapoints, xoffset, yoffset, axisx, axisy) {
          var points = datapoints.points,
            ps = datapoints.pointsize,
            prevx = null, prevy = null;
  
          ctx.beginPath();
          for (var i = ps; i < points.length; i += ps) {
            var x1 = points[i - ps], y1 = points[i - ps + 1],
              x2 = points[i], y2 = points[i + 1];
  
            if (x1 == null || x2 == null)
              continue;
  
            // clip with ymin
            if (y1 <= y2 && y1 < axisy.min) {
              if (y2 < axisy.min)
                continue;   // line segment is outside
              // compute new intersection point
              x1 = (axisy.min - y1) / (y2 - y1) * (x2 - x1) + x1;
              y1 = axisy.min;
            }
            else if (y2 <= y1 && y2 < axisy.min) {
              if (y1 < axisy.min)
                continue;
              x2 = (axisy.min - y1) / (y2 - y1) * (x2 - x1) + x1;
              y2 = axisy.min;
            }
  
            // clip with ymax
            if (y1 >= y2 && y1 > axisy.max) {
              if (y2 > axisy.max)
                continue;
              x1 = (axisy.max - y1) / (y2 - y1) * (x2 - x1) + x1;
              y1 = axisy.max;
            }
            else if (y2 >= y1 && y2 > axisy.max) {
              if (y1 > axisy.max)
                continue;
              x2 = (axisy.max - y1) / (y2 - y1) * (x2 - x1) + x1;
              y2 = axisy.max;
            }
  
            // clip with xmin
            if (x1 <= x2 && x1 < axisx.min) {
              if (x2 < axisx.min)
                continue;
              y1 = (axisx.min - x1) / (x2 - x1) * (y2 - y1) + y1;
              x1 = axisx.min;
            }
            else if (x2 <= x1 && x2 < axisx.min) {
              if (x1 < axisx.min)
                continue;
              y2 = (axisx.min - x1) / (x2 - x1) * (y2 - y1) + y1;
              x2 = axisx.min;
            }
  
            // clip with xmax
            if (x1 >= x2 && x1 > axisx.max) {
              if (x2 > axisx.max)
                continue;
              y1 = (axisx.max - x1) / (x2 - x1) * (y2 - y1) + y1;
              x1 = axisx.max;
            }
            else if (x2 >= x1 && x2 > axisx.max) {
              if (x1 > axisx.max)
                continue;
              y2 = (axisx.max - x1) / (x2 - x1) * (y2 - y1) + y1;
              x2 = axisx.max;
            }
  
            if (x1 != prevx || y1 != prevy)
              ctx.moveTo(axisx.p2c(x1) + xoffset, axisy.p2c(y1) + yoffset);
  
            prevx = x2;
            prevy = y2;
            ctx.lineTo(axisx.p2c(x2) + xoffset, axisy.p2c(y2) + yoffset);
          }
          ctx.stroke();
        }
  
        function plotLineArea(datapoints, axisx, axisy) {
          var points = datapoints.points,
            ps = datapoints.pointsize,
            bottom = Math.min(Math.max(0, axisy.min), axisy.max),
            i = 0, top, areaOpen = false,
            ypos = 1, segmentStart = 0, segmentEnd = 0;
  
          // we process each segment in two turns, first forward
          // direction to sketch out top, then once we hit the
          // end we go backwards to sketch the bottom
          while (true) {
            if (ps > 0 && i > points.length + ps)
              break;
  
            i += ps; // ps is negative if going backwards
  
            var x1 = points[i - ps],
              y1 = points[i - ps + ypos],
              x2 = points[i], y2 = points[i + ypos];
  
            if (areaOpen) {
              if (ps > 0 && x1 != null && x2 == null) {
                // at turning point
                segmentEnd = i;
                ps = -ps;
                ypos = 2;
                continue;
              }
  
              if (ps < 0 && i == segmentStart + ps) {
                // done with the reverse sweep
                ctx.fill();
                areaOpen = false;
                ps = -ps;
                ypos = 1;
                i = segmentStart = segmentEnd + ps;
                continue;
              }
            }
  
            if (x1 == null || x2 == null)
              continue;
  
            // clip x values
  
            // clip with xmin
            if (x1 <= x2 && x1 < axisx.min) {
              if (x2 < axisx.min)
                continue;
              y1 = (axisx.min - x1) / (x2 - x1) * (y2 - y1) + y1;
              x1 = axisx.min;
            }
            else if (x2 <= x1 && x2 < axisx.min) {
              if (x1 < axisx.min)
                continue;
              y2 = (axisx.min - x1) / (x2 - x1) * (y2 - y1) + y1;
              x2 = axisx.min;
            }
  
            // clip with xmax
            if (x1 >= x2 && x1 > axisx.max) {
              if (x2 > axisx.max)
                continue;
              y1 = (axisx.max - x1) / (x2 - x1) * (y2 - y1) + y1;
              x1 = axisx.max;
            }
            else if (x2 >= x1 && x2 > axisx.max) {
              if (x1 > axisx.max)
                continue;
              y2 = (axisx.max - x1) / (x2 - x1) * (y2 - y1) + y1;
              x2 = axisx.max;
            }
  
            if (!areaOpen) {
              // open area
              ctx.beginPath();
              ctx.moveTo(axisx.p2c(x1), axisy.p2c(bottom));
              areaOpen = true;
            }
  
            // now first check the case where both is outside
            if (y1 >= axisy.max && y2 >= axisy.max) {
              ctx.lineTo(axisx.p2c(x1), axisy.p2c(axisy.max));
              ctx.lineTo(axisx.p2c(x2), axisy.p2c(axisy.max));
              continue;
            }
            else if (y1 <= axisy.min && y2 <= axisy.min) {
              ctx.lineTo(axisx.p2c(x1), axisy.p2c(axisy.min));
              ctx.lineTo(axisx.p2c(x2), axisy.p2c(axisy.min));
              continue;
            }
  
            // else it's a bit more complicated, there might
            // be a flat maxed out rectangle first, then a
            // triangular cutout or reverse; to find these
            // keep track of the current x values
            var x1old = x1, x2old = x2;
  
            // clip the y values, without shortcutting, we
            // go through all cases in turn
  
            // clip with ymin
            if (y1 <= y2 && y1 < axisy.min && y2 >= axisy.min) {
              x1 = (axisy.min - y1) / (y2 - y1) * (x2 - x1) + x1;
              y1 = axisy.min;
            }
            else if (y2 <= y1 && y2 < axisy.min && y1 >= axisy.min) {
              x2 = (axisy.min - y1) / (y2 - y1) * (x2 - x1) + x1;
              y2 = axisy.min;
            }
  
            // clip with ymax
            if (y1 >= y2 && y1 > axisy.max && y2 <= axisy.max) {
              x1 = (axisy.max - y1) / (y2 - y1) * (x2 - x1) + x1;
              y1 = axisy.max;
            }
            else if (y2 >= y1 && y2 > axisy.max && y1 <= axisy.max) {
              x2 = (axisy.max - y1) / (y2 - y1) * (x2 - x1) + x1;
              y2 = axisy.max;
            }
  
            // if the x value was changed we got a rectangle
            // to fill
            if (x1 != x1old) {
              ctx.lineTo(axisx.p2c(x1old), axisy.p2c(y1));
              // it goes to (x1, y1), but we fill that below
            }
  
            // fill triangular section, this sometimes result
            // in redundant points if (x1, y1) hasn't changed
            // from previous line to, but we just ignore that
            ctx.lineTo(axisx.p2c(x1), axisy.p2c(y1));
            ctx.lineTo(axisx.p2c(x2), axisy.p2c(y2));
  
            // fill the other rectangle if it's there
            if (x2 != x2old) {
              ctx.lineTo(axisx.p2c(x2), axisy.p2c(y2));
              ctx.lineTo(axisx.p2c(x2old), axisy.p2c(y2));
            }
          }
        }
  
        ctx.save();
        ctx.translate(plotOffset.left, plotOffset.top);
        ctx.lineJoin = "round";
  
        var lw = series.lines.lineWidth,
          sw = series.shadowSize;
        // FIXME: consider another form of shadow when filling is turned on
        if (lw > 0 && sw > 0) {
          // draw shadow as a thick and thin line with transparency
          ctx.lineWidth = sw;
          ctx.strokeStyle = "rgba(0,0,0,0.1)";
          // position shadow at angle from the mid of line
          var angle = Math.PI/18;
          plotLine(series.datapoints, Math.sin(angle) * (lw/2 + sw/2), Math.cos(angle) * (lw/2 + sw/2), series.xaxis, series.yaxis);
          ctx.lineWidth = sw/2;
          plotLine(series.datapoints, Math.sin(angle) * (lw/2 + sw/4), Math.cos(angle) * (lw/2 + sw/4), series.xaxis, series.yaxis);
        }
  
        ctx.lineWidth = lw;
        ctx.strokeStyle = series.color;
        var fillStyle = getFillStyle(series.lines, series.color, 0, plotHeight);
        if (fillStyle) {
          ctx.fillStyle = fillStyle;
          plotLineArea(series.datapoints, series.xaxis, series.yaxis);
        }
  
        if (lw > 0)
          plotLine(series.datapoints, 0, 0, series.xaxis, series.yaxis);
        ctx.restore();
      }
  
      function drawSeriesPoints(series) {
        function plotPoints(datapoints, radius, fillStyle, offset, shadow, axisx, axisy, symbol) {
          var points = datapoints.points, ps = datapoints.pointsize;
  
          for (var i = 0; i < points.length; i += ps) {
            var x = points[i], y = points[i + 1];
            if (x == null || x < axisx.min || x > axisx.max || y < axisy.min || y > axisy.max)
              continue;
  
            ctx.beginPath();
            x = axisx.p2c(x);
            y = axisy.p2c(y) + offset;
            if (symbol == "circle")
              ctx.arc(x, y, radius, 0, shadow ? Math.PI : Math.PI * 2, false);
            else
              symbol(ctx, x, y, radius, shadow);
            ctx.closePath();
  
            if (fillStyle) {
              ctx.fillStyle = fillStyle;
              ctx.fill();
            }
            ctx.stroke();
          }
        }
  
        ctx.save();
        ctx.translate(plotOffset.left, plotOffset.top);
  
        var lw = series.points.lineWidth,
          sw = series.shadowSize,
          radius = series.points.radius,
          symbol = series.points.symbol;
        if (lw > 0 && sw > 0) {
          // draw shadow in two steps
          var w = sw / 2;
          ctx.lineWidth = w;
          ctx.strokeStyle = "rgba(0,0,0,0.1)";
          plotPoints(series.datapoints, radius, null, w + w/2, true,
            series.xaxis, series.yaxis, symbol);
  
          ctx.strokeStyle = "rgba(0,0,0,0.2)";
          plotPoints(series.datapoints, radius, null, w/2, true,
            series.xaxis, series.yaxis, symbol);
        }
  
        ctx.lineWidth = lw;
        ctx.strokeStyle = series.color;
        plotPoints(series.datapoints, radius,
          getFillStyle(series.points, series.color), 0, false,
          series.xaxis, series.yaxis, symbol);
        ctx.restore();
      }
  
      function drawBar(x, y, b, barLeft, barRight, offset, fillStyleCallback, axisx, axisy, c, horizontal, lineWidth) {
        var left, right, bottom, top,
          drawLeft, drawRight, drawTop, drawBottom,
          tmp;
  
        // in horizontal mode, we start the bar from the left
        // instead of from the bottom so it appears to be
        // horizontal rather than vertical
        if (horizontal) {
          drawBottom = drawRight = drawTop = true;
          drawLeft = false;
          left = b;
          right = x;
          top = y + barLeft;
          bottom = y + barRight;
  
          // account for negative bars
          if (right < left) {
            tmp = right;
            right = left;
            left = tmp;
            drawLeft = true;
            drawRight = false;
          }
        }
        else {
          drawLeft = drawRight = drawTop = true;
          drawBottom = false;
          left = x + barLeft;
          right = x + barRight;
          bottom = b;
          top = y;
  
          // account for negative bars
          if (top < bottom) {
            tmp = top;
            top = bottom;
            bottom = tmp;
            drawBottom = true;
            drawTop = false;
          }
        }
  
        // clip
        if (right < axisx.min || left > axisx.max ||
          top < axisy.min || bottom > axisy.max)
          return;
  
        if (left < axisx.min) {
          left = axisx.min;
          drawLeft = false;
        }
  
        if (right > axisx.max) {
          right = axisx.max;
          drawRight = false;
        }
  
        if (bottom < axisy.min) {
          bottom = axisy.min;
          drawBottom = false;
        }
  
        if (top > axisy.max) {
          top = axisy.max;
          drawTop = false;
        }
  
        left = axisx.p2c(left);
        bottom = axisy.p2c(bottom);
        right = axisx.p2c(right);
        top = axisy.p2c(top);
  
        // fill the bar
        if (fillStyleCallback) {
          c.beginPath();
          c.moveTo(left, bottom);
          c.lineTo(left, top);
          c.lineTo(right, top);
          c.lineTo(right, bottom);
          c.fillStyle = fillStyleCallback(bottom, top);
          c.fill();
        }
  
        // draw outline
        if (lineWidth > 0 && (drawLeft || drawRight || drawTop || drawBottom)) {
          c.beginPath();
  
          // FIXME: inline moveTo is buggy with excanvas
          c.moveTo(left, bottom + offset);
          if (drawLeft)
            c.lineTo(left, top + offset);
          else
            c.moveTo(left, top + offset);
          if (drawTop)
            c.lineTo(right, top + offset);
          else
            c.moveTo(right, top + offset);
          if (drawRight)
            c.lineTo(right, bottom + offset);
          else
            c.moveTo(right, bottom + offset);
          if (drawBottom)
            c.lineTo(left, bottom + offset);
          else
            c.moveTo(left, bottom + offset);
          c.stroke();
        }
      }
  
      function drawSeriesBars(series) {
        function plotBars(datapoints, barLeft, barRight, offset, fillStyleCallback, axisx, axisy) {
          var points = datapoints.points, ps = datapoints.pointsize;
  
          for (var i = 0; i < points.length; i += ps) {
            if (points[i] == null)
              continue;
            drawBar(points[i], points[i + 1], points[i + 2], barLeft, barRight, offset, fillStyleCallback, axisx, axisy, ctx, series.bars.horizontal, series.bars.lineWidth);
          }
        }
  
        ctx.save();
        ctx.translate(plotOffset.left, plotOffset.top);
  
        // FIXME: figure out a way to add shadows (for instance along the right edge)
        ctx.lineWidth = series.bars.lineWidth;
        ctx.strokeStyle = series.color;
        var barLeft = series.bars.align == "left" ? 0 : -series.bars.barWidth/2;
        var fillStyleCallback = series.bars.fill ? function (bottom, top) { return getFillStyle(series.bars, series.color, bottom, top); } : null;
        plotBars(series.datapoints, barLeft, barLeft + series.bars.barWidth, 0, fillStyleCallback, series.xaxis, series.yaxis);
        ctx.restore();
      }
  
      function getFillStyle(filloptions, seriesColor, bottom, top) {
        var fill = filloptions.fill;
        if (!fill)
          return null;
  
        if (filloptions.fillColor)
          return getColorOrGradient(filloptions.fillColor, bottom, top, seriesColor);
  
        var c = $.color.parse(seriesColor);
        c.a = typeof fill == "number" ? fill : 0.4;
        c.normalize();
        return c.toString();
      }
  
      function insertLegend() {
        placeholder.find(".legend").remove();
  
        if (!options.legend.show)
          return;
  
        var fragments = [], rowStarted = false,
          lf = options.legend.labelFormatter, s, label;
        for (var i = 0; i < series.length; ++i) {
          s = series[i];
          label = s.label;
          if (!label)
            continue;
  
          if (i % options.legend.noColumns == 0) {
            if (rowStarted)
              fragments.push('</tr>');
            fragments.push('<tr>');
            rowStarted = true;
          }
  
          if (lf)
            label = lf(label, s);
  
          fragments.push(
            '<td class="legendColorBox"><div style="border:1px solid ' + options.legend.labelBoxBorderColor + ';padding:1px"><div style="width:4px;height:0;border:5px solid ' + s.color + ';overflow:hidden"></div></div></td>' +
              '<td class="legendLabel">' + label + '</td>');
        }
        if (rowStarted)
          fragments.push('</tr>');
  
        if (fragments.length == 0)
          return;
  
        var table = '<table style="font-size:smaller;color:' + options.grid.color + '">' + fragments.join("") + '</table>';
        if (options.legend.container != null)
          $(options.legend.container).html(table);
        else {
          var pos = "",
            p = options.legend.position,
            m = options.legend.margin;
          if (m[0] == null)
            m = [m, m];
          if (p.charAt(0) == "n")
            pos += 'top:' + (m[1] + plotOffset.top) + 'px;';
          else if (p.charAt(0) == "s")
            pos += 'bottom:' + (m[1] + plotOffset.bottom) + 'px;';
          if (p.charAt(1) == "e")
            pos += 'right:' + (m[0] + plotOffset.right) + 'px;';
          else if (p.charAt(1) == "w")
            pos += 'left:' + (m[0] + plotOffset.left) + 'px;';
          var legend = $('<div class="legend">' + table.replace('style="', 'style="position:absolute;' + pos +';') + '</div>').appendTo(placeholder);
          if (options.legend.backgroundOpacity != 0.0) {
            // put in the transparent background
            // separately to avoid blended labels and
            // label boxes
            var c = options.legend.backgroundColor;
            if (c == null) {
              c = options.grid.backgroundColor;
              if (c && typeof c == "string")
                c = $.color.parse(c);
              else
                c = $.color.extract(legend, 'background-color');
              c.a = 1;
              c = c.toString();
            }
            var div = legend.children();
            $('<div style="position:absolute;width:' + div.width() + 'px;height:' + div.height() + 'px;' + pos +'background-color:' + c + ';"> </div>').prependTo(legend).css('opacity', options.legend.backgroundOpacity);
          }
        }
      }
  
  
      // interactive features
  
      var highlights = [],
        redrawTimeout = null;
  
      // returns the data item the mouse is over, or null if none is found
      function findNearbyItem(mouseX, mouseY, seriesFilter) {
        var maxDistance = options.grid.mouseActiveRadius,
          smallestDistance = maxDistance * maxDistance + 1,
          item = null, foundPoint = false, i, j;
  
        for (i = series.length - 1; i >= 0; --i) {
          if (!seriesFilter(series[i]))
            continue;
  
          var s = series[i],
            axisx = s.xaxis,
            axisy = s.yaxis,
            points = s.datapoints.points,
            ps = s.datapoints.pointsize,
            mx = axisx.c2p(mouseX), // precompute some stuff to make the loop faster
            my = axisy.c2p(mouseY),
            maxx = maxDistance / axisx.scale,
            maxy = maxDistance / axisy.scale;
  
          // with inverse transforms, we can't use the maxx/maxy
          // optimization, sadly
          if (axisx.options.inverseTransform)
            maxx = Number.MAX_VALUE;
          if (axisy.options.inverseTransform)
            maxy = Number.MAX_VALUE;
  
          if (s.lines.show || s.points.show) {
            for (j = 0; j < points.length; j += ps) {
              var x = points[j], y = points[j + 1];
              if (x == null)
                continue;
  
              // For points and lines, the cursor must be within a
              // certain distance to the data point
              if (x - mx > maxx || x - mx < -maxx ||
                y - my > maxy || y - my < -maxy)
                continue;
  
              // We have to calculate distances in pixels, not in
              // data units, because the scales of the axes may be different
              var dx = Math.abs(axisx.p2c(x) - mouseX),
                dy = Math.abs(axisy.p2c(y) - mouseY),
                dist = dx * dx + dy * dy; // we save the sqrt
  
              // use <= to ensure last point takes precedence
              // (last generally means on top of)
              if (dist < smallestDistance) {
                smallestDistance = dist;
                item = [i, j / ps];
              }
            }
          }
  
          if (s.bars.show && !item) { // no other point can be nearby
            var barLeft = s.bars.align == "left" ? 0 : -s.bars.barWidth/2,
              barRight = barLeft + s.bars.barWidth;
  
            for (j = 0; j < points.length; j += ps) {
              var x = points[j], y = points[j + 1], b = points[j + 2];
              if (x == null)
                continue;
  
              // for a bar graph, the cursor must be inside the bar
              if (series[i].bars.horizontal ?
                (mx <= Math.max(b, x) && mx >= Math.min(b, x) &&
                  my >= y + barLeft && my <= y + barRight) :
                (mx >= x + barLeft && mx <= x + barRight &&
                  my >= Math.min(b, y) && my <= Math.max(b, y)))
                item = [i, j / ps];
            }
          }
        }
  
        if (item) {
          i = item[0];
          j = item[1];
          ps = series[i].datapoints.pointsize;
  
          return { datapoint: series[i].datapoints.points.slice(j * ps, (j + 1) * ps),
            dataIndex: j,
            series: series[i],
            seriesIndex: i };
        }
  
        return null;
      }
  
      function onMouseMove(e) {
        if (options.grid.hoverable)
          triggerClickHoverEvent("plothover", e,
            function (s) { return s["hoverable"] != false; });
      }
  
      function onMouseLeave(e) {
        if (options.grid.hoverable)
          triggerClickHoverEvent("plothover", e,
            function (s) { return false; });
      }
  
      function onClick(e) {
        triggerClickHoverEvent("plotclick", e,
          function (s) { return s["clickable"] != false; });
      }
  
      // trigger click or hover event (they send the same parameters
      // so we share their code)
      function triggerClickHoverEvent(eventname, event, seriesFilter) {
        var offset = eventHolder.offset(),
          canvasX = event.pageX - offset.left - plotOffset.left,
          canvasY = event.pageY - offset.top - plotOffset.top,
          pos = canvasToAxisCoords({ left: canvasX, top: canvasY });
  
        pos.pageX = event.pageX;
        pos.pageY = event.pageY;
  
        var item = findNearbyItem(canvasX, canvasY, seriesFilter);
  
        if (item) {
          // fill in mouse pos for any listeners out there
          item.pageX = parseInt(item.series.xaxis.p2c(item.datapoint[0]) + offset.left + plotOffset.left);
          item.pageY = parseInt(item.series.yaxis.p2c(item.datapoint[1]) + offset.top + plotOffset.top);
        }
  
        if (options.grid.autoHighlight) {
          // clear auto-highlights
          for (var i = 0; i < highlights.length; ++i) {
            var h = highlights[i];
            if (h.auto == eventname &&
              !(item && h.series == item.series &&
                h.point[0] == item.datapoint[0] &&
                h.point[1] == item.datapoint[1]))
              unhighlight(h.series, h.point);
          }
  
          if (item)
            highlight(item.series, item.datapoint, eventname);
        }
  
        placeholder.trigger(eventname, [ pos, item ]);
      }
  
      function triggerRedrawOverlay() {
        if (!redrawTimeout)
          redrawTimeout = setTimeout(drawOverlay, 30);
      }
  
      function drawOverlay() {
        redrawTimeout = null;
  
        // draw highlights
        octx.save();
        octx.clearRect(0, 0, canvasWidth, canvasHeight);
        octx.translate(plotOffset.left, plotOffset.top);
  
        var i, hi;
        for (i = 0; i < highlights.length; ++i) {
          hi = highlights[i];
  
          if (hi.series.bars.show)
            drawBarHighlight(hi.series, hi.point);
          else
            drawPointHighlight(hi.series, hi.point);
        }
        octx.restore();
  
        executeHooks(hooks.drawOverlay, [octx]);
      }
  
      function highlight(s, point, auto) {
        if (typeof s == "number")
          s = series[s];
  
        if (typeof point == "number") {
          var ps = s.datapoints.pointsize;
          point = s.datapoints.points.slice(ps * point, ps * (point + 1));
        }
  
        var i = indexOfHighlight(s, point);
        if (i == -1) {
          highlights.push({ series: s, point: point, auto: auto });
  
          triggerRedrawOverlay();
        }
        else if (!auto)
          highlights[i].auto = false;
      }
  
      function unhighlight(s, point) {
        if (s == null && point == null) {
          highlights = [];
          triggerRedrawOverlay();
        }
  
        if (typeof s == "number")
          s = series[s];
  
        if (typeof point == "number")
          point = s.data[point];
  
        var i = indexOfHighlight(s, point);
        if (i != -1) {
          highlights.splice(i, 1);
  
          triggerRedrawOverlay();
        }
      }
  
      function indexOfHighlight(s, p) {
        for (var i = 0; i < highlights.length; ++i) {
          var h = highlights[i];
          if (h.series == s && h.point[0] == p[0]
            && h.point[1] == p[1])
            return i;
        }
        return -1;
      }
  
      function drawPointHighlight(series, point) {
        var x = point[0], y = point[1],
          axisx = series.xaxis, axisy = series.yaxis;
  
        if (x < axisx.min || x > axisx.max || y < axisy.min || y > axisy.max)
          return;
  
        var pointRadius = series.points.radius + series.points.lineWidth / 2;
        octx.lineWidth = pointRadius;
        octx.strokeStyle = $.color.parse(series.color).scale('a', 0.5).toString();
        var radius = 1.5 * pointRadius,
          x = axisx.p2c(x),
          y = axisy.p2c(y);
  
        octx.beginPath();
        if (series.points.symbol == "circle")
          octx.arc(x, y, radius, 0, 2 * Math.PI, false);
        else
          series.points.symbol(octx, x, y, radius, false);
        octx.closePath();
        octx.stroke();
      }
  
      function drawBarHighlight(series, point) {
        octx.lineWidth = series.bars.lineWidth;
        octx.strokeStyle = $.color.parse(series.color).scale('a', 0.5).toString();
        var fillStyle = $.color.parse(series.color).scale('a', 0.5).toString();
        var barLeft = series.bars.align == "left" ? 0 : -series.bars.barWidth/2;
        drawBar(point[0], point[1], point[2] || 0, barLeft, barLeft + series.bars.barWidth,
          0, function () { return fillStyle; }, series.xaxis, series.yaxis, octx, series.bars.horizontal, series.bars.lineWidth);
      }
  
      function getColorOrGradient(spec, bottom, top, defaultColor) {
        if (typeof spec == "string")
          return spec;
        else {
          // assume this is a gradient spec; IE currently only
          // supports a simple vertical gradient properly, so that's
          // what we support too
          var gradient = ctx.createLinearGradient(0, top, 0, bottom);
  
          for (var i = 0, l = spec.colors.length; i < l; ++i) {
            var c = spec.colors[i];
            if (typeof c != "string") {
              var co = $.color.parse(defaultColor);
              if (c.brightness != null)
                co = co.scale('rgb', c.brightness)
              if (c.opacity != null)
                co.a *= c.opacity;
              c = co.toString();
            }
            gradient.addColorStop(i / (l - 1), c);
          }
  
          return gradient;
        }
      }
    }
  
    $.plot = function(placeholder, data, options) {
      //var t0 = new Date();
      var plot = new Plot($(placeholder), data, options, $.plot.plugins);
      //(window.console ? console.log : alert)("time used (msecs): " + ((new Date()).getTime() - t0.getTime()));
      return plot;
    };
  
    $.plot.version = "0.7";
  
    $.plot.plugins = [];
  
    // returns a string with the date d formatted according to fmt
    $.plot.formatDate = function(d, fmt, monthNames) {
      var leftPad = function(n) {
        n = "" + n;
        return n.length == 1 ? "0" + n : n;
      };
  
      var r = [];
      var escape = false, padNext = false;
      var hours = d.getUTCHours();
      var isAM = hours < 12;
      if (monthNames == null)
        monthNames = ["Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"];
  
      if (fmt.search(/%p|%P/) != -1) {
        if (hours > 12) {
          hours = hours - 12;
        } else if (hours == 0) {
          hours = 12;
        }
      }
      for (var i = 0; i < fmt.length; ++i) {
        var c = fmt.charAt(i);
  
        if (escape) {
          switch (c) {
            case 'h': c = "" + hours; break;
            case 'H': c = leftPad(hours); break;
            case 'M': c = leftPad(d.getUTCMinutes()); break;
            case 'S': c = leftPad(d.getUTCSeconds()); break;
            case 'd': c = "" + d.getUTCDate(); break;
            case 'm': c = "" + (d.getUTCMonth() + 1); break;
            case 'y': c = "" + d.getUTCFullYear(); break;
            case 'b': c = "" + monthNames[d.getUTCMonth()]; break;
            case 'p': c = (isAM) ? ("" + "am") : ("" + "pm"); break;
            case 'P': c = (isAM) ? ("" + "AM") : ("" + "PM"); break;
            case '0': c = ""; padNext = true; break;
          }
          if (c && padNext) {
            c = leftPad(c);
            padNext = false;
          }
          r.push(c);
          if (!padNext)
            escape = false;
        }
        else {
          if (c == "%")
            escape = true;
          else
            r.push(c);
        }
      }
      return r.join("");
    };
  
    // round to nearby lower multiple of base
    function floorInBase(n, base) {
      return base * Math.floor(n / base);
    }
  
  })(jQuery);
  