[рони]

makalet,

<script>
  var birthday = '07.09.2005';
  var dd = birthday.split(".");
  var mydate = new Date(+dd[2]+10,dd[1]-1,dd[0]);
  var date = new Date();
  date.setHours(0, 0, 0);
  var test = Math.round((mydate - date) / 864E5)
  document.write("юбилей через " +test + " дней<br>")
</script>
<script>
  var birthday = '07.09.2005';
  var dd = birthday.split(".");
  var mydate = new Date(dd[2],dd[1]-1,dd[0]);
  mydate.setYear(+dd[2]+10);
  var date = new Date();
  date.setHours(0, 0, 0);
  var test = Math.round((mydate - date) / 864E5)
  document.write("юбилей через " +test + " дней<br>")
</script>