--- /dev/null
+function openTab(evt, tabName) {
+
+ var i, tabcontent, tablinks;
+
+ tabcontent = document.getElementsByClassName("tabcontent");
+ for (i = 0; i < tabcontent.length; i++) {
+ tabcontent[i].style.display = "none";
+ }
+
+ tablinks = document.getElementsByClassName("tablinks");
+ for (i = 0; i < tablinks.length; i++) {
+ tablinks[i].className = tablinks[i].className.replace(" active", "");
+ }
+
+ document.getElementById(tabName).style.display = "block";
+ evt.currentTarget.className += " active";
+}