생활코딩 - JavaScript 수업 - object example1.html
http://opentutorials.org/course/49/25
by egoing
JavaScript
var d1 = new Date(2002, 1, 18);
var d2 = new Date(2011, 1, 18);
alert(d1.getFullYear());
alert(d2.getFullYear());
alert(d2.getFullYear() - d1.getFullYear());