public void setIsolationLevel(int iL)
	{
		try{
			if(iL == Connection.TRANSACTION_NONE 
					|| iL == Connection.TRANSACTION_READ_COMMITTED 
					|| iL == Connection.TRANSACTION_READ_UNCOMMITTED 
					|| iL == Connection.TRANSACTION_REPEATABLE_READ
					|| iL == Connection.TRANSACTION_SERIALIZABLE)
				con.setTransactionIsolation(iL);
		}
		catch(SQLException e)
		{e.printStackTrace();}
	}