how to get reference to chart created with jquery

[scisd]

I'm creating a pie chart and populating the data via jquery with ajax. this all works great but now I want to change the color of the chart, but I cant' figure out how to get a reference to the chart to call the functions. I can change "allSeries" but I want to change each series to a custom color. I create the chart like this:

 

 $("div", ".ChartDiv1").chart({

    gallery: cfx.Gallery.Pie,

    dataValues: items,

    //allSeries: { color: "#801702D1" },

    dataSourceSettings: {

        fields: [{

            name: "Open",

            usage: cfx.FieldUsage.Value

        }, {

            name: "Date",

            usage: cfx.FieldUsage.XValue

        }]

    },

    titles: [{

        text: "<%=ChartTitle %>"

    }]

});

so how do I get a reference to the chart so I can use setColor() function to change the series color? like this:

chart1.getAllSeries().getBorder().setColor("#FF0000");