private void PbLog_Click(object sender, EventArgs e)
        {
            try
            {
                if (GeneralLogForm == null)
                {
                    GeneralLogForm = new ApplicationLog();
                }

                GeneralLogForm.ShowDialog();
            }
            catch
            {
                GeneralLogForm = new ApplicationLog();
                GeneralLogForm.ShowDialog();
            }

            pbLog.Image = Properties.Resources.log_up;
            ThreadPool.QueueUserWorkItem(delegate
            {
                ThreadHelper.SafeSleep(100);
                SetLogButtonImage(Properties.Resources.log_up);
            });
        }