diff --git a/assets/js/joe.global.js b/assets/js/joe.global.js
index 100e0bc..cba1e0b 100644
--- a/assets/js/joe.global.js
+++ b/assets/js/joe.global.js
@@ -330,6 +330,7 @@ document.addEventListener('DOMContentLoaded', () => {
             }
             if (isSubmit) return;
             isSubmit = true;
+            $('.joe_comment__respond-form .foot .submit button').html('发送中...');
             $.ajax({
                 url,
                 type: 'POST',
@@ -344,6 +345,7 @@ document.addEventListener('DOMContentLoaded', () => {
                     if (!/Joe/.test(res)) {
                         Qmsg.warning(str.textContent.trim() || '');
                         isSubmit = false;
+                        $('.joe_comment__respond-form .foot .submit button').html('发表评论');
                     } else {
                         window.location.href = changeURLArg(location.href, 'scroll', 'joe_comment');
                     }
diff --git a/core/function.php b/core/function.php
index d55a365..b1c5a14 100644
--- a/core/function.php
+++ b/core/function.php
@@ -3,7 +3,7 @@
 /* 获取主题当前版本号 */
 function _getVersion()
 {
-	return "5.3.7";
+	return "5.3.8";
 };
 
 /* 判断是否是手机 */
diff --git a/functions.php b/functions.php
index 5542809..ba4bfaf 100644
--- a/functions.php
+++ b/functions.php
@@ -248,7 +248,8 @@ function themeConfig($form)
         NULL,
         NULL,
         '网页被隐藏时显示的标题',
-        '介绍：在PC端切换网页标签时，网站标题显示的内容。如果不填写，则默认不开启'
+        '介绍：在PC端切换网页标签时，网站标题显示的内容。如果不填写，则默认不开启 <br />
+         注意：严禁加单引号或双引号！！！否则会导致网站出错！！'
     );
     $JDocumentTitle->setAttribute('class', 'joe_content joe_global');
     $form->addInput($JDocumentTitle);