@Override
	public boolean delete(int prenodeid, int nownodeid) {
		boolean flag = false;
		System.out.println(prenodeid + " " + nownodeid);
		Timenode prenode = getTimenode(prenodeid);
		Timenode nownode = getTimenode(nownodeid);
		prenode.setNextnode(nownode.getNextnode());
		nownode.setDisplay("false");
		if (update(nownode) && update(prenode))
			flag = true;
		return flag;
	}