diff --git a/js/main.js b/js/main.js
index 2906a53..8dca01b 100644
--- a/js/main.js
+++ b/js/main.js
@@ -1,3 +1,39 @@
 function hrefToFrame(link) {
     top.frames['gameframe'].location = link
+}
+
+/**
+ * Отображаем уведомление на 5 секунд.
+ * @top Отступ сверху.
+ * @right Отступ справа.
+ * @className Тип уведомления.
+ * @html Текст уведомления в HTML формате.
+ */
+function showNotification({top = 0, right = 0, className, html}) {
+
+    let notification = document.createElement('div');
+    notification.style.cssText = `
+        position: fixed;
+        z-index: 1000;
+        padding: 5px;
+        border: 1px solid black;
+        font-size: 20px;
+        background: white;
+        text-align: center;
+      `;
+
+    if (className === "danger") {
+        notification.style.cssText += `
+          background: #b80000;
+          color: yellow;
+        `;
+    }
+
+    notification.style.top = top + 'px';
+    notification.style.right = right + 'px';
+
+    notification.innerHTML = html;
+    document.body.append(notification);
+
+    setTimeout(() => notification.remove(), 5000);
 }
\ No newline at end of file