<div id="stock-chart"></div>
<script>
$("#stock-chart").kendoStockChart({
    navigator: {
        categoryAxis: {
            notes: {
                data: [{
                    value: new Date("2012/01/15"),
                    text: "Event at this date"
                }]
            }
        }
    },
    dataSource: {
        data: [
            { date: new Date("2012/01/01"), value: 1 },
            { date: new Date("2012/01/15"), value: 2 },
            { date: new Date("2012/02/01"), value: 3 }
        ]
    },
    dateField: "date",
    valueField: "value"
});
</script>