diff --git a/src/logic/navigator.ts b/src/logic/navigator.ts
new file mode 100644
index 0000000..53b6e0b
--- /dev/null
+++ b/src/logic/navigator.ts
@@ -0,0 +1,37 @@
+export default class Navigator
+{
+    private activeIndex: string;
+    private updateCallback: (() => void) | undefined;
+    
+    /**
+     * Update index
+     *
+     * @param newIndex
+     * @param title
+     * @param history Record in history or not (Default true)
+     */
+    updateIndex(newIndex: string, title: string, history?: boolean)
+    {
+        // Call custom event
+        if (this.updateCallback != null) this.updateCallback();
+
+        // Null case
+        if (history == null) history = true;
+
+        // Record history or not
+        if (history)
+        {
+            // Check url
+            let url = `/#${newIndex}`;
+
+            // Push history state
+            window.history.pushState({lastTab: newIndex}, '', url);
+        }
+
+        // Update title
+        document.title = 'Veracross Analyzer - ' + title;
+
+        // Scroll to top
+        window.scrollTo(0, 0);
+    }
+}