diff --git a/admin/index.php b/admin/index.php
index 1ee87fc2..71edbc37 100644
--- a/admin/index.php
+++ b/admin/index.php
@@ -136,18 +136,17 @@ $(document).ready(function () {
 
     function applyUpdate(update) {
         if (update.available) {
-            $('<div class="update-check"><p>'
+            $('<div class="update-check message error"><p>'
                 + '<?php _e('您当前使用的版本是 %s'); ?>'.replace('%s', update.current) + '<br />'
                 + '<strong><a href="' + update.link + '" target="_blank">'
                 + '<?php _e('官方最新版本是 %s'); ?>'.replace('%s', update.latest) + '</a></strong></p></div>')
-            .appendTo('.welcome-board').effect('highlight');
+            .insertAfter('.typecho-page-title').effect('highlight');
         }
     }
 
     if (!!update) {
         applyUpdate($.parseJSON(update));
     } else {
-        update = '';
         $.get('<?php $options->index('/action/ajax?do=checkVersion'); ?>', function (o, status, resp) {
             applyUpdate(o);
             cache.setItem('update', resp.responseText);
diff --git a/admin/write-js.php b/admin/write-js.php
index 0cbc80a1..b0c6a26d 100644
--- a/admin/write-js.php
+++ b/admin/write-js.php
@@ -163,11 +163,11 @@ $(document).ready(function() {
     })();
     
     if (dstOffset > 0) {
-        $('<input name="dst" type="hidden" />').insertAfter(form).val(dstOffset);
+        $('<input name="dst" type="hidden" />').appendTo(form).val(dstOffset);
     }
 
     // 时区
-    $('<input name="timezone" type="hidden" />').insertAfter(form).val(Math.floor((Date.now() - Date.UTC()) / 1000));
+    $('<input name="timezone" type="hidden" />').appendTo(form).val(- (new Date).getTimezoneOffset() * 60);
 
     // 自动保存
 <?php if ($options->autoSave): ?>
diff --git a/var/Typecho/Common.php b/var/Typecho/Common.php
index b6250b18..134b22f6 100644
--- a/var/Typecho/Common.php
+++ b/var/Typecho/Common.php
@@ -22,7 +22,7 @@ define('__TYPECHO_MB_SUPPORTED__', function_exists('mb_get_info') && function_ex
 class Typecho_Common
 {
     /** 程序版本 */
-    const VERSION = '1.1/17.10.28';
+    const VERSION = '1.1/17.10.29';
 
     /**
      * 允许的属性
diff --git a/var/Widget/Ajax.php b/var/Widget/Ajax.php
index 4775c617..8cc22394 100644
--- a/var/Widget/Ajax.php
+++ b/var/Widget/Ajax.php
@@ -44,31 +44,27 @@ class Widget_Ajax extends Widget_Abstract_Options implements Widget_Interface_Do
         if ($client) {
             $client->setHeader('User-Agent', $this->options->generator)
                 ->setTimeout(10)
-                ->send('https://github.com/typecho/typecho/releases.atom');
+                ->send('http://typecho.org/version.json');
 
             /** 匹配内容体 */
             $response = $client->getResponseBody();
-            preg_match_all("/<link rel=\"alternate\"[^>]+href=\"([^>]*)\"\s*\/>/is", $response, $matches);
-            $result = array('available' => 0);
+            $json = json_decode($response, true);
 
-            list($soft, $version) = explode(' ', $this->options->generator);
-            $current = explode('/', $version);
+            if (!empty($json)) {
+                list($soft, $version) = explode(' ', $this->options->generator);
+                $current = explode('/', $version);
 
-            if ($matches) {
-                foreach ($matches[0] as $key => $val) {
-                    $title = trim($matches[1][$key]);
-                    if (preg_match("/v([0-9\.]+)\-([0-9\.]+)\-release$/is", $title, $out)) {
-                        if (version_compare($out[1], $current[0], '>=')
-                        && version_compare($out[2], $current[1], '>')) {
-                            $result = array(
-                                'available' => 1, 
-                                'latest'    => $out[1] . '-' . $out[2],
-                                'current'   => $current[0] . '-' . $current[1],
-                                'link'      => 'https://github.com' . $matches[1][$key]
-                            );
-                            break;
-                        }
-                    }
+                if (isset($json['release']) && isset($json['version'])
+                    && preg_match("/^[0-9\.]+$/", $json['release'])
+                    && preg_match("/^[0-9\.]+$/", $json['version'])
+                    && version_compare($json['release'], $current[0], '>=')
+                    && version_compare($json['version'], $current[1], '>')) {
+                    $result = array(
+                        'available' => 1,
+                        'latest'    => $json['release'] . '-' . $json['version'],
+                        'current'   => $current[0] . '-' . $current[1],
+                        'link'      => 'http://typecho.org/download'
+                    );
                 }
             }