function showrib(m)
{
  // Alle Menüs ausblenden
  document.getElementById('quicknavi_menue_patienten').style.display = 'none';
  document.getElementById('quicknavi_menue_aerzte').style.display = 'none';  
  switch (m)
  {
    case 1:
      document.getElementById('out').style.display = 'block';
      document.getElementById('quicknavi_menue_patienten').style.display = 'block';
      break;
    case 2:
      document.getElementById('out').style.display = 'block';
      document.getElementById('quicknavi_menue_aerzte').style.display = 'block';
      break;
      
    case 0:
      document.getElementById('out').style.display = 'none';
      break;
    default:
      document.getElementById('out').style.display = 'none';
      break;
  }
}