Add i18n for message in editor pop-up

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;
           }
        },

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

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