diff --git a/module/admin/js/index.js b/module/admin/js/index.js
deleted file mode 100755
index 2cec602ab9..0000000000
--- a/module/admin/js/index.js
+++ /dev/null
@@ -1 +0,0 @@
-$(function() { if(!showDemoUsers) $('#submenuclearData').addClass('hidden');});
diff --git a/www/js/my.full.js b/www/js/my.full.js
index 190e5bd1e9..081358fd26 100644
--- a/www/js/my.full.js
+++ b/www/js/my.full.js
@@ -656,6 +656,17 @@ function ajaxGetSearchForm()
     }
 }
 
+/**
+ * Hide the link of clearData.
+ * 
+ * @access public
+ * @return void
+ */
+function hideClearDataLink()
+{
+    if(typeof showDemoUsers == 'undefined' || !showDemoUsers) $('#submenuclearData').addClass('hidden');
+}
+
 /**
  * add one option of a select to another select. 
  * 
@@ -809,6 +820,8 @@ $(document).ready(function()
     autoCheck();
     toggleSearch();
 
+    hideClearDataLink();
+
     $(window).resize(function(){saveWindowSize()});   // When window resized, call it again.
     if(needPing) setTimeout('setPing()', 1000 * 60);  // After 5 minutes, begin ping.