var unread_msg_count_container = document.getElementById("unread_msg_count");
      if(unread_msg_count_container) {
        if(unread_msg_count_container.firstChild){ unread_msg_count_container.removeChild(unread_msg_count_container.firstChild); }
        unread_msg_count_container.appendChild(document.createTextNode(""));
      }
      
      var community_im_status_ele = document.getElementById("community_im_status");
      if(community_im_status_ele) {
        community_im_status_ele.src = "/images/chats/offline_icon.gif";
        community_im_status_ele.alt = "即时聊天 离线";
        community_im_status_ele.title = "即时聊天 离线";
      }
      
      setTimeout("refresh_interval_loader();", 300000);