Какое число будет через n дней

<SCRIPT language="JavaScript">
<!-- Original: Kevin Myers (kevinmyers@unforgettable.com) -->
<!-- Web Site: http://www.geocities.com/SiliconValley/Bay/7554 -->

<!-- Begin
function AddDays(form) {
DaysToAdd=document.form.DaysToAdd.value;

var now=new Date();
var newdate=new Date();
var newtimems=newdate.getTime()+(DaysToAdd*24*60*60*1000);
newdate.setTime(newtimems);
document.form.display.value=newdate.toLocaleString();
}
// End -->
</SCRIPT>
<center>
<form name=form>
<input type=text name=DaysToAdd size=5 value=10>
<input type=button value="Расчет" onclick="AddDays(this.form)">
<input type=text name="display" size=35 value="">
</form>
</center>