diff --git a/frontend/Web/communication.js b/frontend/Web/communication.js
index 380edf4..521e9aa 100644
--- a/frontend/Web/communication.js
+++ b/frontend/Web/communication.js
@@ -92,4 +92,16 @@ async function GetMyPrivilege()
 {
   let ret = await RawRequest("#Who "+session_token+" InfoQuery "+outhentication_key);
   return parseInt(ret.split('\n')[1].split(' ')[1]);
+}
+
+async function RefreshSession()
+{
+  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);
 }
\ No newline at end of file