add alert

assets/js/ark.js

@@ -77,6 +77,13 @@ $("#btn_login").click(function() {
                     text: '帳號/密碼錯誤，請重新輸入',
                     confirmButtonColor: '#3085d6'
                 });
+            } else {
+                Swal.fire({
+                    title: '注意',
+                    icon: 'error',
+                    text: '權限不足',
+                    confirmButtonColor: '#3085d6'
+                });
             }
         }
     });