Use client side rendering

ohayodash/static/js/script.js

@@ -0,0 +1,38 @@
+function date() {
+    let currentDate = new Date();
+    let dateOptions = {
+        weekday: "long",
+        year: "numeric",
+        month: "long",
+        day: "numeric"
+    };
+    let date = currentDate.toLocaleDateString("en-GB", dateOptions);
+    document.getElementById("header_date").innerHTML = date;
+}
+
+function greet() {
+    let currentTime = new Date();
+    let greet = Math.floor(currentTime.getHours() / 6);
+    let greeting = "こんにちは!";
+    switch (greet) {
+        case 0:
+            greeting = "おやすみなさい!";
+            break;
+        case 1:
+            greeting = "おはようございます!";
+            break;
+        case 2:
+            greeting = "こんにちは!";
+            break;
+        case 3:
+            greeting = "こんばんは!";
+            break;
+    }
+    document.getElementById("header_greet").innerHTML = greeting;
+    document.title = greeting;
+}
+
+function loadFunctions() {
+    date();
+    greet();
+}