diff --git a/app/assets/javascripts/ajax_form.js b/app/assets/javascripts/ajax_form.js.erb
similarity index 97%
rename from app/assets/javascripts/ajax_form.js
rename to app/assets/javascripts/ajax_form.js.erb
index 065e09fd1..917c352df 100644
--- a/app/assets/javascripts/ajax_form.js
+++ b/app/assets/javascripts/ajax_form.js.erb
@@ -1,3 +1,4 @@
+<%#= encoding: utf-8 %>
 $(document).on('click', '#ajax_form_submit', function(){
 	// $('#ajaxForm').ajaxSubmit({
 	// 	beforeSubmit: function(a,f,o) {
@@ -35,6 +36,7 @@ $(document).on('click', '#ajax_form_submit', function(){
           })
           if(!sub){
           	$("#dyn_error").text("Cannot be empty.");
+          	$("#dyn_error").text("<%= I18n.t('cant_empty_star') %>");
             return false;
           }
        },
diff --git a/config/locales/en.yml b/config/locales/en.yml
index 682222924..e2d199d4c 100644
--- a/config/locales/en.yml
+++ b/config/locales/en.yml
@@ -11,6 +11,7 @@ en:
   back: Back
   browse: Browse
   cancel: Cancel
+  cant_empty_star: Cannot be empty (*)
   create_fail: Creation failed
   create: Create
   delete: Delete
diff --git a/config/locales/zh_tw.yml b/config/locales/zh_tw.yml
index 443eb35d5..08e4aebbc 100644
--- a/config/locales/zh_tw.yml
+++ b/config/locales/zh_tw.yml
@@ -8,6 +8,7 @@ zh_tw:
   back: 回上一步
   browse: 選擇檔案
   cancel: 取消
+  cant_empty_star: 不能為空 (*)
   create: 新增
   create_fail: 創建失敗
   delete: 刪除