public void AddPop_up(vWindowPop_up pop_up)
 {
     if (!pop_ups.Contains(pop_up))
     {
         pop_ups.Add(pop_up);
         if (!pop_up.gameObject.activeSelf)
         {
             pop_up.gameObject.SetActive(true);
         }
     }
 }
        public void RemovePop_up(vWindowPop_up pop_up)
        {
            try
            {
                if (pop_ups.Contains(pop_up))
                {
                    pop_ups.Remove(pop_up);
                    if (pop_up.gameObject.activeSelf)
                    {
                        pop_up.gameObject.SetActive(false);
                    }

                    //if (pop_ups.Count > 0)
                    //{
                    //    if (pop_ups[pop_ups.Count - 1]!=null &&!pop_ups[pop_ups.Count - 1].gameObject.activeSelf)
                    //        pop_ups[pop_ups.Count - 1].gameObject.SetActive(true);
                    //}
                }
            }
            catch { }
        }