// 変数宣言
var modified = document.lastModified
var what = new Date(document.lastModified)
var tz = what.getTimezoneOffset()
var year;
var month;
var date;
var hour;
var min;
var sec;
var future = what

// function 定義
function IECheck(version) {
	if ((navigator.appName.indexOf("Microsoft Internet Explorer") >= 0) && (version <= parseInt(navigator.appVersion.substring(22, 25)))) {
		return true;
	} else {
		return false;
	}
}

// Main
if ((IECheck(4) == true) || (IECheck(5) == true)) {
	if (IECheck(4) == true) {
		future.setTime(what.getTime() - (tz / 60 * 1000) * 60 * 60)
	}
	if (IECheck(5) == true) {
		future.setTime(what.getTime() + (tz / 60 * 1000) * 60 * 60)
	}
	year = future.getYear()
	if (year < 2000) { year = year + 1900 }
	month = future.getMonth() + 1
	date = future.getDate()
	hour = future.getHours()
	min = future.getMinutes()
	sec = future.getSeconds()
	if (month < 10) { month = "0" + month }
	if (date < 10) { date = "0" + date }
	if (hour < 10) { hour = "0" + hour }
	if (min < 10) { min = "0" + min }
	if (sec < 10) { sec = "0" + sec }
	modified = (month + "/" + date + "/" + year + "\&nbsp;" + hour + ":" + min +":" + sec);
}

document.write("Last update at " + modified);