Moment formatting
HTML
<script src="http://davis-design.de/marktadresse/layout/js/moment.js"></script>
JavaScript
startdate = "20.03.2014";
var new_date = moment(startdate, "DD-MM-YYYY").add('days', 5);
var day = new_date.format('DD');
var month = new_date.format('MM');
var year = new_date.format('YYYY');
alert(day + '.' + month + '.' + year);
//http://stackoverflow.com/questions/22547129/momentjs-date-string-add-5-days