grid aggregates

HTML

<script src="http://cdn.kendostatic.com/2012.1.322/js/kendo.all.min.js"></script>
<link rel="stylesheet" href="http://cdn.kendostatic.com/2012.1.322/styles/kendo.common.min.css">
<link rel="stylesheet" href="http://cdn.kendostatic.com/2012.1.322/styles/kendo.metro.min.css">
<link rel="stylesheet" href="http://cdn.kendostatic.com/2012.1.322/styles/kendo.dataviz.min.css">
                <div id="chart"></div>
<div id="chart-no-tooltip"></div>

JavaScript

function createChart() {
        $("#chart").kendoChart({
            series: [{
                type: "pie",
                data: [
                { category: "test", value: 10},
                { category: "sadfsadf", value: 3.5}
                ]
            }],
            tooltip: { visible: true }
        });

        $("#chart-no-tooltip").kendoChart({
            series: [{
                overlay: {gradient: "none"},
                type: "pie",
                data: [
                { category: "test", value: 10},
                { category: "sadfsadf", value: 3.5}
                ]
            }],
            tooltip: { visible: true }
        });
}

    $(document).ready(function() {
        setTimeout(function() {
            createChart();
        }, 100);


    });