public static void openTrade(Player player, String title, int id, TradeOffer[] offers) {
		Packet100OpenWindow packet = new Packet100OpenWindow();
		packet.a = id;
		packet.b = 6;
		packet.c = title;
		packet.d = offers.length;

		EntityPlayer p = ((CraftPlayer)player).getHandle();

		MerchantRecipeList r = new MerchantRecipeList();
		for(TradeOffer of : offers) {
			if(of.getUsedItem2() == null) {
				r.a(new MerchantRecipe(of.getUsedItem1(), of.getRecivedItem()));
			}
			r.a(new MerchantRecipe(of.getUsedItem1(), of.getUsedItem2(), of.getRecivedItem()));
		}
		p.playerConnection.sendPacket(packet);
		try {
			ByteArrayOutputStream buffer = new ByteArrayOutputStream();
			DataOutputStream out = new DataOutputStream(buffer);
			out.writeInt(id);
			r.a(out);
			p.playerConnection.sendPacket(new Packet250CustomPayload("MC|TrList", buffer.toByteArray()));
		}
		catch (IOException e) {e.printStackTrace();}
	}