| Input element | 
      DownArrow or UpArrow | 
      Shows the calender grid and moves the focus into the expanded grid. | 
    
    
      | Input element | 
      Esc | 
      Close the grid. | 
    
    
      | Input element | 
      Tab In | 
      Set focus to the input. If hints, title or messages exist in a notewindow,
       pop up the notewindow. | 
    
    
      | Picker | 
      Enter | 
      Select the currently focused day | 
    
    
      | Picker | 
      UpArrow | 
      Move up in the grid. | 
    
    
      | Picker | 
      DownArrow | 
      Move down in the grid. | 
    
    
      | Picker | 
      RightArrow | 
      Move right in the grid. | 
    
    
      | Picker | 
      LeftArrow | 
      Move left in the grid. | 
    
    
      | Picker | 
      Esc | 
      Close the grid. | 
    
    
      | Picker | 
      Home | 
      Move focus to first day of the month. | 
    
    
      | Picker | 
      End | 
      Move focus to last day of the month. | 
    
    
      | Picker | 
      PageUp | 
      Switch to previous month. | 
    
    
      | Picker | 
      PageDown | 
      Switch to next month. | 
    
    
      | Picker | 
      Alt + PageUp | 
      Switch to previous year. | 
    
    
      | Picker | 
      Alt + PageDown | 
      Switch to next year. | 
    
    
      | Picker | 
      Ctrl + Alt + PageUp | 
      Switch to previous by stepBigMonths. | 
    
    
      | Picker | 
      Ctrl + Alt + PageDown | 
      Switch to next by stepBigMonths. | 
    
    
      | Picker | 
      Ctrl + Alt + T | 
      Places focus on Today button if it exists. |