/// <summary>
        /// Creates a new CSVWriter object which will write to a new file
        /// This is performed weekly every monday or if a file does not exist for the week
        /// </summary>
        /// <param name="file_name">name of csv file</param>
        public void CreateLog(string file_name, FileMode mode) {
            //create a new writer
            try
            {
                if (mode == FileMode.Create)
                {
                    int i = 0;
                    string fname = _log_path + "\\" + file_name + "-" + i.ToString() + ".csv";
                    while (File.Exists(fname)) // this loop guarantees that it will not overwrite the file, but instead append a number to the end and create a new file
                    {
                        i += 1;
                        fname = _log_path + "\\" + file_name + "-" + i.ToString() + ".csv";
                    }
                    _writer = new CSVWriter(fname, mode);

                    //basic header stuff for the csv
                    //the name of the log, the time it started
                    _writer.addToCurrent("Log for: ");
                    _writer.addToCurrent(file_name);
                    _writer.addToCurrent(" ");
                    _writer.addToCurrent("Log Start Time: ");
                    _writer.addToCurrent(DateTime.Now.ToShortTimeString());
                    _writer.WriteLine();
                    //and then header for the collumns
                    _writer.addToCurrent("Time");
                    _writer.addToCurrent("ID Number");
                    _writer.addToCurrent("Problem");
                    _writer.addToCurrent("Description");
                    _writer.WriteLine();
                }
                else if (mode == FileMode.Append)
                {
                    _writer = new CSVWriter(file_name, mode);
                }
            }
            catch (Exception e)
            {
                MessageBox.Show(e.Message, "Error Creating Log");
                return;
            }
        }