function koushin() {
var day = new Date(document.lastModified);
var y = day.getFullYear();
var m = day.getMonth() + 1;
var d = day.getDate();

document.write(y + "/" + m + "/" + d);
}


function next() {
var day = new Date(document.lastModified);
var y = day.getFullYear();
var m = day.getMonth();
var d = day.getDate();

var t = new Date(y, m, d + 17);
var tYear = t.getFullYear();
var tMonth = t.getMonth() + 1;
var tDate = t.getDate();

document.write("　次回更新予定日：" +tYear + "/" + tMonth + "/" + tDate);
}


function koushin2() {
var now = new Date();
   var year = now.getFullYear();

document.write(year);
}