<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html lang="ja">
<head>
<meta http-equiv="content-type" content="text/html;charset=utf-8">
<title>Sample</title>
<link rel="stylesheet" href="../../../lib/resources/css/ext-all.css" type="text/css" media="all">
<link rel="stylesheet" href="../../../lib/resources/css/main.css" type="text/css" media="all">
<script type="text/javascript" src="../../../lib/js/ext-base.js"></script>
<script type="text/javascript" src="../../../lib/js/ext-all.js"></script>
<script type="text/javascript"><!--
function calcDate(){
var cDate = new Date();
var n = parseInt(Ext.get("dayNum").dom.value);
var aDate = cDate.add(Date.DAY, n);
var Y = aDate.getFullYear();
var M = aDate.getMonth() + 1;
var D = aDate.getDate();
Ext.get("result").dom.innerHTML = Y+"年"+M+"月"+D+"日";
}
// --></script>
</head>
<body>
<h1>n日後、n日前を求める</h1>
<form>
今日から<input type="text" value="3" id="dayNum" size="5">日後を
<input type="button" value="計算する" onClick="calcDate()">
</form>
<div id="result">---</div>
</body>
</html>