function chkFormular () {
    if (document.schnellanfrage.email2.value  == "") {
    alert("Please fill in your e-mail address!");
    document.schnellanfrage.email2.focus();
    return false;
  }
  if (document.schnellanfrage.email2.value.indexOf("@") == -1) {
    alert("No e-mail address!");
    document.schnellanfrage.email2.focus();
    return false;
  }
  if (document.schnellanfrage.email2.value.indexOf(".") == -1) {
    alert("No e-mail address!");
    document.schnellanfrage.email2.focus();
    return false;
  }
  if (document.schnellanfrage.name2.value == "") {
    alert("Please fill in your name!");
    document.schnellanfrage.name2.focus();
    return false;
  }
  if (document.schnellanfrage.Anreise2.value == "TT.MM.JJJJ") {
    alert("No arrival date!");
    document.schnellanfrage.Anreise2.focus();
    return false;
  }
  if (document.schnellanfrage.Abreise2.value == "TT.MM.JJJJ") {
    alert("No departure date!");
    document.schnellanfrage.Abreise2.focus();
    return false;
  }
  if (document.schnellanfrage.zimmertyp.value == "Keine_Angabe") {
    alert("Please choose a room type!");
    document.schnellanfrage.zimmertyp.focus();
    return false;
  }
}