1 files changed, 26 insertions, 0 deletions
diff --git a/assets/js/pages/hitcounter.js b/assets/js/pages/hitcounter.js
new file mode 100644
index 0000000..7cbced6
--- /dev/null
+++ b/assets/js/pages/hitcounter.js
@@ -0,0 +1,26 @@
+function countUniqueVisitors() {
+      // Per-page local counter (host + path), matching the site footer logic.
+      function pageKey() {
+        var path = (location.pathname || '/').replace(/\/+$/, '') || '/';
+        path = path.replace(/\/index(?:_[a-z]{2})?\.php$/i, '') || '/';
+        path = path.replace(/_(jp|zh)\.php$/i, '.php');
+        return location.hostname + path;
+      }
+      var page = pageKey();
+      var VISITOR_KEY = 'uniqueVisitorCount_v2:' + page;
+      var SESSION_KEY = 'hasVisited_v2:' + page;
+      var visitorCount = localStorage.getItem(VISITOR_KEY);
+      if (!visitorCount) visitorCount = 0;
+      else visitorCount = parseInt(visitorCount, 10) || 0;
+
+      if (!sessionStorage.getItem(SESSION_KEY)) {
+        visitorCount++;
+        localStorage.setItem(VISITOR_KEY, String(visitorCount));
+        sessionStorage.setItem(SESSION_KEY, 'true');
+      }
+
+      var el = document.getElementById('visitor-counter');
+      if (el) el.innerText = String(visitorCount);
+    }
+
+    countUniqueVisitors();