b', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'];

            var toolTipCustomFormatFn = function (value, itemIndex, serie, group, categoryValue, categoryAxis) {
                var dataItem = dataAdapter.records[itemIndex];
                return '<DIV style="text-align:left"><b>Date: ' +
                        categoryValue.getDate() + '-' + months[categoryValue.getMonth()] + '-' + categoryValue.getFullYear() +
                        '</b><br />Open price: $' + dataItem.