<script> today=new Date() var endofyear=new Date(today.getFullYear(), 11, 31) var one_day=1000*60*60*24 document.write("เหลือเวลาอีก <b>"+Math.ceil((endofyear.getTime()-today.getTime())/(one_day))+"</b> วันถึงจะหมดปีนี้") </script>