/**
  * 
  */
 public function empfehlung($type)
 {
     $tarifModel = new Application_Model_Tarif();
     switch ($type) {
         case 'preis':
             return $tarifModel->getById(1);
             break;
         case 'bonus':
             $allTarif = $tarifModel->getAll();
             /* Tarif für suggestion:größter Wechselbonus suchen */
             $bestBoniTarif = null;
             $bestBoniSumme = 0;
             foreach ($allTarif as $actualTarif) {
                 $boniSumme = $actualTarif->getBoniSum() - $actualTarif->preis_start;
                 if ($boniSumme >= $bestBoniSumme) {
                     $bestBoniTarif = $actualTarif;
                     $bestBoniSumme = $boniSumme;
                 }
             }
             return $bestBoniTarif;
             break;
         case 'bewertung':
             return $tarifModel->getBest();
             break;
     }
 }