From 26179adbf871c7bdc22c332c23dd4c047c4f5104 Mon Sep 17 00:00:00 2001
From: ronny abraham <ronny.abraham@ymail.com>
Date: Fri, 13 Jun 2025 00:41:01 +0300
Subject: [PATCH] add collapsible

---
 collapsible.js | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)
 create mode 100644 collapsible.js

diff --git a/collapsible.js b/collapsible.js
new file mode 100644
index 0000000..ded1a8a
--- /dev/null
+++ b/collapsible.js
@@ -0,0 +1,17 @@
+document.addEventListener('DOMContentLoaded', function() {
+  var headers = document.querySelectorAll('h4');
+
+  headers.forEach(function(header) {
+    header.addEventListener('click', function() {
+      var nextElement = header.nextElementSibling;
+      if (nextElement) {
+        var collapsibleList = nextElement.querySelector('.playlist, .notes, .contents');
+        if (collapsibleList) {
+          header.classList.toggle('active');
+          collapsibleList.classList.toggle('active');
+        }
+      }
+    });
+  });
+});
+