document.write('<select class="t4" name="date">');
document.write('<option value="' + yyyymmddtwodate + '">Vor</option>');
document.write('<option value="' + yyyymmddyesdate + '">Gestern</option>');
document.write('<option value="' + yyyymmdddate + '" selected>heute</option>');
document.write('<option value="' + yyyymmddtomdate + '">Morgen</option>');