ElementsByClassName("chart-container");
            for (let i = 0; i < containers.length; i++) {
                containers[i].style.display = "none";
            }

            let tablinks = document.getElementsByClassName("tablinks");
            for (let i = 0; i < tablinks.length; i++) {
                tablinks[i].className = "tablinks";
            }

            document.getElementById(chartID).style.display = "block";
            evt.currentTarget.className += " active";
        }
    </script>
</