function ttsendform()
{
for (var i=0; i < document.ttform.ttradio.length; i++)
   {
   if (document.ttform.ttradio[i].checked)
      {
      var rad_val = document.ttform.ttradio[i].value;
      
      if(rad_val == 'transport'){
          document.ttform.action ="http://tg2.tgtech.ch/PTSWeb/tnSendungStart.php";
      }
      else if(rad_val == 'logistik'){
          document.ttform.action ="http://tg2.tgtech.ch/plsweb/plsstart.php";
      }
      return true;
      }
   }
}