private void drawTezineHeader(Graphics g)
 {
     string[] tezine = { "A = 0,10", "B = 0,20", "C = 0,30", "D = 0,40",
                         "E = 0,50", "F = 0,60 (G = 0,70)" };
     for (int i = 0; i < 6; i++)
     {
         ElementTableItem item       = tabela.getElementItemAt(selectedSprava(), selectedGrupa(), 1, i + 1);
         RectangleF       tezinaRect = new RectangleF(
             xMargin + item.Location.X * zoom / 100, 0,
             item.Size.Width * zoom / 100, tezineHeaderHeightPxl);
         drawTezinaHeader(tezine[i], tezinaRect, g);
     }
 }