自定义标记highcharts json.net到壁板

我正在使用json.net构建并将highchart推送到Geckoboard。Geckoboard没有给出任何设置lang选项的示例(即使有，我也不确切知道应该在哪里设置它们)。我知道有自定义格式，但是当我试图传入一个Javascript函数来格式化时，我收到了一个400错误的请求:

            new JProperty("yAxis",
                new JArray(
                    new JObject(
                        new JProperty("title",
                            new JObject(
                                new JProperty("style",
                                    new JObject(
                                        new JProperty("color", "#b9bbbb")
                                    )
                                ),
                                new JProperty("text", "Sales Orders")
                            )
                        ),
                        new JProperty("labels",
                            new JObject(
                                new JProperty("formatter",new JRaw("function(){return this.value/100;}"))
                            )
                        )
                    ),
                    new JObject(
                        new JProperty("title",
                            new JObject(
                                new JProperty("text","Ad Cost"),
                                new JProperty("style",
                                    new JObject(
                                        new JProperty("color","#FFFFFF")
                                    )
                                )
                            )
                        ),
                        new JProperty("opposite","true")

                    )
                 )
            ),

这是基于Highcharts提供的jsfiddle: http://jsfiddle.net/gh/get/jquery/1.7.2/hililide-software/highcharts.com/tree/master/samples/highcharts/xaxis/labels-formatter-linked/

我要发布到Geckoboard的字符串的相关部分:

      "yAxis": [
    {
      "title": {
        "style": {
          "color": "#b9bbbb"
        },
        "text": "Name Of Axis"
      },
      "labels": {
        "formatter": function(){return this.value/100;}
      }
    },

任何帮助都将非常感激。