function checkFormularHaendler(plz_alert_text){
              if(document.haendler.plz.value == ""){
                  alert(plz_alert_text);
                  document.haendler.plz.focus();
                  return false;
              } else {
              	  return true;
              }
          }
          

  		function checkFormularLogin(email_alert_text,passwort_alert_text){
              if(document.login.zugang.value == ""){
                  alert(email_alert_text);
                  document.login.zugang.focus();
                  return false;
              } else if(document.login.passwort.value == ""){
                  alert(passwort_alert_text);
                  document.login.passwort.focus();
                  return false;
              } else {
              	  return true;
              }
          }