/*
 * NL-Anmeldung
 */
function pruefen() {
   if ((document.nlanmeldung.fromnlanmeldungs.checked == false)
   && (document.nlanmeldung.fromnlanmeldungn.checked == false)
   && (document.nlanmeldung.fromnlanmeldungw.checked == false)
   && (document.nlanmeldung.fromnlanmeldungo.checked == false)
   ) {
   alert("Bitte geben Sie an, welchen / welche Newsletter Sie beziehen möchten");
   return false;
   }
   }

   /*
 * Diashow
 */
        var diaquellen = ["images/cosler-h.jpg","images/dier-h.jpg"];
        var diabilder = [];
        var diaanzahl = diaquellen.length;
        var count = 0;
        for (var i = 0; i < diaanzahl; i++) {
            diabilder[i] = new Image();
            diabilder[i].src = diaquellen[i];
        }
        //Diashow der Bilder aus diaquellen
        function doDiaShow() {
            if (count > (diaanzahl-1)) {
           count = 0;
        }
        document.images["Dia"].src = diabilder[count].src;
        count++;
        setTimeout(doDiaShow, 3000);
        }

        /*
 * Anzeigwechsel Homepage
 */
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