Changing the structure and fixing spelling errors

static/index/index.js

@@ -0,0 +1,25 @@
+// Source - https://stackoverflow.com/questions/4076321/javascript-age-calculation
+// Posted by Matt
+// Retrieved 2025-11-22, License - CC BY-SA 2.5
+function calculateAge(birthDate, otherDate) {
+    var years = (otherDate.getFullYear() - birthDate.getFullYear());
+
+    if (otherDate.getMonth() < birthDate.getMonth() || 
+        otherDate.getMonth() == birthDate.getMonth() && otherDate.getDate() < birthDate.getDate()) {
+        years--;
+    }
+
+    return years;
+}
+
+function lyesAge() {
+    let birth = new Date("2002-04-18")
+    let today = new Date()
+    return calculateAge(birth, today)
+}
+
+function changeAge() {
+    document.getElementById("age").innerHTML = lyesAge()
+}
+
+changeAge()