diff --git a/frontend/Web/communication.js b/frontend/Web/communication.js
index 15369a9..4fcf21e 100644
--- a/frontend/Web/communication.js
+++ b/frontend/Web/communication.js
@@ -70,21 +70,6 @@ async function Request(req)
   return response;
 }
 
-var SessionReadyEvent = new Event('SessionReady');
-(async () => {
-  if(session_token==null||outhentication_key==null||operation_count==null){
-    let tmp_channel=generateRandomString(10);
-    let ret=await RawRequest('#OpenSession '+tmp_channel);
-    operation_count=0;
-    session_token=ret.split('\n')[1].split(' ')[0];
-    outhentication_key=ret.split('\n')[1].split(' ')[1];
-    localStorage.setItem("session_token", session_token);
-    localStorage.setItem("outhentication_key", outhentication_key);
-    localStorage.setItem("operation_count", operation_count);
-    document.dispatchEvent(SessionReadyEvent);
-  }
-})();
-
 async function GetMyName()
 {
   session_token=localStorage.getItem("session_token");
diff --git a/frontend/Web/index.html b/frontend/Web/index.html
index e9fdeea..b3abc37 100644
--- a/frontend/Web/index.html
+++ b/frontend/Web/index.html
@@ -195,8 +195,10 @@
       }
     }
     document.addEventListener('SessionReady', async () => {
+      console.log("receive event session ready");
       await UpdateUserInfo();
     });
   </script>
+  <script src="/sessioninit.js"></script>
 </body>
 </html>
\ No newline at end of file
diff --git a/frontend/Web/index.js b/frontend/Web/index.js
index c45caf3..3ac8ac6 100644
--- a/frontend/Web/index.js
+++ b/frontend/Web/index.js
@@ -106,6 +106,9 @@ app.get('/', (req, res) => {
 app.get('/communication.js', (req, res) => {
   res.sendFile(join(__dirname, 'communication.js'));
 });
+app.get('/sessioninit.js', (req, res) => {
+  res.sendFile(join(__dirname, 'sessioninit.js'));
+});
 
 io.on('connection', async (socket) => {
   console.log('a user connected');
diff --git a/frontend/Web/login.html b/frontend/Web/login.html
index fc4c74c..b2cfe36 100644
--- a/frontend/Web/login.html
+++ b/frontend/Web/login.html
@@ -257,5 +257,6 @@
       }
     }
   </script>
+  <script src="/sessioninit.js"></script>
 </body>
 </html>
\ No newline at end of file
diff --git a/frontend/Web/passwd.html b/frontend/Web/passwd.html
index 97a409a..ada0800 100644
--- a/frontend/Web/passwd.html
+++ b/frontend/Web/passwd.html
@@ -269,5 +269,6 @@
       }
     })();
   </script>
+  <script src="/sessioninit.js"></script>
 </body>
 </html>
\ No newline at end of file
diff --git a/frontend/Web/register.html b/frontend/Web/register.html
index 0f95f56..7d19af4 100644
--- a/frontend/Web/register.html
+++ b/frontend/Web/register.html
@@ -261,5 +261,6 @@
       }
     }
   </script>
+  <script src="/sessioninit.js"></script>
 </body>
 </html>
\ No newline at end of file
diff --git a/frontend/Web/sessioninit.js b/frontend/Web/sessioninit.js
new file mode 100644
index 0000000..65955e4
--- /dev/null
+++ b/frontend/Web/sessioninit.js
@@ -0,0 +1,15 @@
+var SessionReadyEvent = new Event('SessionReady');
+(async () => {
+  if(session_token==null||outhentication_key==null||operation_count==null){
+    let tmp_channel=generateRandomString(10);
+    let ret=await RawRequest('#OpenSession '+tmp_channel);
+    operation_count=0;
+    session_token=ret.split('\n')[1].split(' ')[0];
+    outhentication_key=ret.split('\n')[1].split(' ')[1];
+    localStorage.setItem("session_token", session_token);
+    localStorage.setItem("outhentication_key", outhentication_key);
+    localStorage.setItem("operation_count", operation_count);
+  }
+  document.dispatchEvent(SessionReadyEvent);
+  console.log("Sent event Session Ready");
+})();
\ No newline at end of file