function typeOfPrintingChanged ()
{
        if ( $("select#typeOfPrinting").val() == 'none' )
        {
                $('#official-printing-container').hide();
                $('#custom-printing-container').hide();
        }
        else if ( $("select#typeOfPrinting").val() == 'official' )
        {
                $('#official-printing-container').show();
                $('#custom-printing-container').hide();
        }
        else if ( $("select#typeOfPrinting").val() == 'unofficial' )
        {
                $('#official-printing-container').hide();
                $('#custom-printing-container').show();
        }
        else
        {
                $('#official-printing-container').hide();
                $('#custom-printing-container').hide();
        }
}