private void HollandTestFormForm_Load(object sender, EventArgs e)
        {
            TestTimer.StartTimer();

            if (HollandTest.isFirstQuestion)
            {
                HollandTest.CreateTest();
            }
            else
            {
                HollandTest.answerStack.Pop();
            }

            foreach (Control control in this.Controls)
            {
                control.PreviewKeyDown += new PreviewKeyDownEventHandler(control_PreviewKeyDown);
            }

            LoadQuestion();
        }