From b189281a1bec5e1c203621fe3e23822c61348095 Mon Sep 17 00:00:00 2001
From: kurogeek <kurogeek@lmvhaus.com>
Date: Tue, 27 Oct 2026 02:07:59 +0000
Subject: [PATCH] Site main.js: skip nav anchors without href in scroll
 handler; the Categories dropdown toggle has none, so every scroll threw
 TypeError and aborted sticky-header/header-appear logic

---
 think.greaterchiangmai.com/public/js/main.js | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/think.greaterchiangmai.com/public/js/main.js b/think.greaterchiangmai.com/public/js/main.js
index a92e608..8854dfd 100644
--- a/think.greaterchiangmai.com/public/js/main.js
+++ b/think.greaterchiangmai.com/public/js/main.js
@@ -43,9 +43,13 @@
         scrollPos = scrollPos + 60;
         menu_links.each(function () {
             var currLink = $(this);
-            var hasPos = currLink.attr("href").indexOf("#");
+            var href = currLink.attr("href");
+            if (!href) {
+                return;
+            }
+            var hasPos = href.indexOf("#");
             if (hasPos > -1) {
-                var res = currLink.attr("href").substring(hasPos);
+                var res = href.substring(hasPos);
                 if (res != '' && res != '#' && $(res).length > 0) {
                     var refElement = $(res);
                     if (refElement.offset().top <= scrollPos && refElement.offset().top + refElement.height() > scrollPos) {