DayPilot.DatePicker(options);
<span id="start"></span> <a href="#" onclick="picker.show(); return false;">Change</a>
<script type="text/javascript">
var picker = new DayPilot.DatePicker({
target: 'start',
pattern: 'yyyy-MM-dd',
onTimeRangeSelected: function(args) {
dp.startDate = args.date;
dp.update();
}
});
</script>