$('#tooltip').html(text).css({top: item.pageY - 20, left: item.pageX + 10}).show();
        }

        function hoverOnExecutionGraph(event, pos, item) {
            $('#tooltip').html(item.datapoint[1] + " " + unit).css({top: item.pageY - 30, left: item.pageX + 10}).show();
        }