diff --git a/en/changelog/index.html b/en/changelog/index.html
index 05572e7..cd42d3f 100644
--- a/en/changelog/index.html
+++ b/en/changelog/index.html
@@ -84,7 +84,7 @@
 
 </div>
 <p>Last Modified: 21 November 2023<br>
-scripting mode for i:0 urls<br>
+enhance security<br>
 <pre></pre>
 </p>
 <script>
diff --git a/en/readme/index.html b/en/readme/index.html
index f23eedb..5bcccac 100644
--- a/en/readme/index.html
+++ b/en/readme/index.html
@@ -98,7 +98,7 @@
 
 </div>
 <p>Last Modified: 21 November 2023<br>
-textarea2.js 8x performance improvement for file saving<br>
+enhance security<br>
 <pre></pre>
 </p>
 <script>
diff --git a/latest.html b/latest.html
index 9fe126a..08bfa4a 100644
--- a/latest.html
+++ b/latest.html
@@ -1,6 +1,6 @@
 <script>
   let verCode = %1%;
-  let latestV = 1027;
+  let latestV = 1028;
   if( verCode>=latestV) alert("No updates available!");
   else
     location.href = "https://s1.asytech.cn/s/tQrgT5kBRg8Trry/download?path=%2F&files=uweb"+
diff --git a/zh/searchurl/textarea2.js b/zh/searchurl/textarea2.js
deleted file mode 100644
index 754fc6c..0000000
--- a/zh/searchurl/textarea2.js
+++ /dev/null
@@ -1,86 +0,0 @@
-var textarea;
-onload=function(){
-  textarea=document.getElementsByTagName('textarea')[0];
-}
-
-function getNewlinePos_back(text,pos){
-  while(pos>=0 && text.charAt(pos)!='\n') pos--;
-  return pos;
-}
-
-function getNewlinePos_forth(text,pos){
-  let len = text.length;
-  while(pos<len && text.charAt(pos)!='\n') pos++;
-  return pos;
-}
-
-function deleteLine(ta){
-  let text = ta.value;
-  let lStart = getNewlinePos_back(text,ta.selectionStart-1);
-  let lEnd = getNewlinePos_forth(text,ta.selectionEnd);
-  ta.value = text.substring(0,lStart+1) + text.substring(lEnd+1);
-  ta.selectionStart = ta.selectionEnd = lStart +1;
-  ta.focus();
-}
-
-function moveUp(ta){
-  let text = ta.value;
-  let start = ta.selectionStart;
-  let end = ta.selectionEnd;
-  let lStart = getNewlinePos_back(text,start-1);
-  let lEnd = getNewlinePos_forth(text,end);
-  let prevS = getNewlinePos_back(text,lStart-1);
-  ta.value = text.substring(0,prevS+1)+text.substring(lStart+1,lEnd+1)+
-    text.substring(prevS+1,lStart+1) + text.substring(lEnd+1);
-  ta.selectionStart = start - (lStart - prevS);
-  ta.selectionEnd = end - (lStart - prevS);
-  ta.focus();
-}
-
-function move2Top(ta){
-  let text = ta.value;
-  let start = ta.selectionStart;
-  let end = ta.selectionEnd;
-  let lStart = getNewlinePos_back(text,start-1);
-  let lEnd = getNewlinePos_forth(text,end);
-  ta.value = text.substring(lStart+1,lEnd+1)+text.substring(0,lStart+1)+
-    text.substring(lEnd+1);
-  ta.selectionStart = start - lStart-1;
-  ta.selectionEnd = end - lStart-1;
-  ta.focus();
-}
-
-function move2Bottom(ta){
-  let text = ta.value;
-  let start = ta.selectionStart;
-  let end = ta.selectionEnd;
-  let lStart = getNewlinePos_back(text,start-1);
-  let lEnd = getNewlinePos_forth(text,end);
-  ta.value = text.substring(0,lStart+1)+text.substring(lEnd+1)+
-    text.substring(lStart+1,lEnd+1);
-  ta.selectionStart = start + text.length - lEnd-1;
-  ta.selectionEnd = end + text.length - lEnd-1;
-  ta.focus();
-}
-
-function moveDown(ta){
-  let text = ta.value;
-  let start = ta.selectionStart;
-  let end = ta.selectionEnd;
-  let lStart = getNewlinePos_back(text,start-1);
-  let lEnd = getNewlinePos_forth(text,end);
-  let nextE = getNewlinePos_forth(text,lEnd+1);
-  ta.value = text.substring(0,lStart+1) + text.substring(lEnd+1,nextE+1) +
-    text.substring(lStart+1,lEnd+1)+text.substring(nextE+1);
-  ta.selectionStart = start + (nextE - lEnd);
-  ta.selectionEnd = end + (nextE - lEnd);
-  ta.focus();
-}
-
-function save(fn){
-  let u8=new TextEncoder().encode(textarea.value);let r=new TextDecoder('ISO-8859-1').decode(u8);location.href='i:0l'+fn+':'+r;
-}
-
-function onSave(){
-  save(location.pathname);
-}