diff --git a/index.html b/index.html
index b4889b3..7671988 100644
--- a/index.html
+++ b/index.html
@@ -324,6 +324,7 @@
                             <span class="uptext"><i class="fad fa-wrench"></i>&nbsp;星期进度条显示错误</span>
                             <span class="uptext"><i class="fad fa-wrench"></i>&nbsp;移动端动画及细节</span>
                             <span class="uptext"><i class="fad fa-wrench"></i>&nbsp;Js&nbsp;文件优化</span>
+                            <span class="uptext"><i class="fad fa-undo-alt"></i>&nbsp;<a href="./old/" style="color:#efefef">返回旧版站点</a></span>
                         </div>
                     </div>
                 </div>
diff --git a/js/main.js b/js/main.js
index f17b96c..02c4bf3 100644
--- a/js/main.js
+++ b/js/main.js
@@ -13,12 +13,6 @@ iziToast.settings({
     iconColor: '#efefef',
 });
 
-iziToast.info({
-    icon: 'fad fa-vial',
-    title: '新版站点试运行',
-    message: '还存在亿些小问题 ~ <a href="./old/" style="color:#efefef">返回旧版</a>'
-});
-
 //控制台输出
 /*
 let date = '2021-09-27 21:32'
@@ -319,4 +313,26 @@ document.oncontextmenu = function () {
         message: '为了浏览体验，本站禁用右键'
     });
     return false;
-}
\ No newline at end of file
+}
+
+//自动变灰
+var myDate = new Date;
+  var mon = myDate.getMonth() + 1;
+  var date = myDate.getDate();
+  var days = ['4.4', '5.12', '7.7', '9.9', '9.18', '12.13'];
+  for (var day of days) {
+    var d = day.split('.');
+    if (mon == d[0] && date == d[1]) {
+      document.write(
+        '<style>html{-webkit-filter:grayscale(100%);-moz-filter:grayscale(100%);-ms-filter:grayscale(100%);-o-filter:grayscale(100%);filter:progid:DXImageTransform.Microsoft.BasicImage(grayscale=1);_filter:none}</style>'
+      )
+      $("#change").html("Silence&nbsp;in&nbsp;silence");
+      $("#change1").html("今天是国家纪念日，全站已切换为黑白模式");
+      iziToast.info({
+          timeout: 14000,
+          icon: 'fad fa-candle-holder',
+          title: '今天是国家纪念日',
+          message: '历史不会忘记，人民永远铭记！'
+      });
+    }
+  }
\ No newline at end of file
diff --git a/old/index.html b/old/index.html
index 77ebd30..eb60cdf 100644
--- a/old/index.html
+++ b/old/index.html
@@ -96,8 +96,8 @@
                                         </a>
                                     </li>
                                     <li class="navigation__item">
-                                        <a href="https://lab.imsyy.top/" target="_blank" class="blog-button">
-                                            <div>实验</div>
+                                        <a href="https://imsyy.top/" class="blog-button">
+                                            <div>前往新版</div>
                                         </a>
                                     </li>
                                 </ul>