diff --git a/index.html b/index.html
index d450fa7..ea855d9 100644
--- a/index.html
+++ b/index.html
@@ -41,5 +41,15 @@ <h2>Overview</h2>
     <p>Supported by the Weinberg Institute for Theoretical Physics, Department of Physics, University of Texas.</p>
     <p>&copy; 2023 Physics Concerto Seminar Series</p>
 </footer>
+<script>
+    function toggleContent(id) {
+        var content = document.getElementById(id);
+        if (content.style.display === "none") {
+            content.style.display = "block";
+        } else {
+            content.style.display = "none";
+        }
+    }
+</script>
 </body>
 </html>