<script type="text/javascript">
<!--
if (window.navigator.cookieEnabled) {
	document.write("クッキーは利用できます。");	// クッキーの受け入れが有効時の処理
}
else {
	document.write("クッキーは利用できません。");	// クッキーの受け入れが無効時の処理
}
// -->
</script>

if (!navigator.cookieEnabled) {
	document.write("ブラウザの設定にてクッキーの受け入れを有効にしてください。");
}

<script type="text/javascript">
<!--
var name = "testcookie";			// クッキーの名前
var value = 1;					// クッキーの値
var period = 7;					// 有効期限日数

// 発行したクッキーの取得（読み込み）
if (document.cookie) {
	var cookies = document.cookie.split("; ");
	for (var i = 0; i < cookies.length; i++) {
		var str = cookies[i].split("=");
		if (str[0] == name) {
			var cookie_value = unescape(str[1]);
			if (!isNaN(value)) value = ++cookie_value;
			break;
		}
	}
}
window.status = value;

// 有効期限の作成
var nowtime = new Date().getTime();
var clear_time = new Date(nowtime + (60 * 60 * 24 * 1000 * period));
var expires = clear_time.toGMTString();

// クッキーの発行（書き込み）
document.cookie = name + "=" + escape(value) + "; expires=" + expires;
// -->
</script>

document.cookie = name + "=" + escape(value) + "; expires=" + expires;
                    |                   |       |    |           |
                    |                   |       |    |           |
                    |_ 名前             |_ 値   |    |_ 有効期限 |_ 有効期限の値
                                                |_ 区切り

document.cookie = name + "=" + escape(value);

document.cookie = name + "=" + escape(value) + "; path=" + location.pathname + "; expires=" + expires;

document.cookie = name + "=" + escape(value) + "; path=/; expires=" + expires;

<script type="text/javascript">
<!--
// クッキーの取得
var COOKIE = new Array();
if (document.cookie) {
	var cookies = document.cookie.split("; ");
	for (var i = 0; i < cookies.length; i++) {
		var str = cookies[i].split("=");
		COOKIE[str[0]] = unescape(str[1]);
	}
}

// クッキーの発行
function setCookie(name, value, domain, path, expires, secure) {
	if (!name) return;

	var str = name + "=" + escape(value);
	if (domain) {
		if (domain == 1) domain = location.hostname.replace(/^[^\.]*/, "");
		str += "; domain=" + domain;
	}
	if (path) {
		if (path == 1) path = location.pathname;
		str += "; path=" + path;
	}
	if (expires) {
		var nowtime = new Date().getTime();
		expires = new Date(nowtime + (60 * 60 * 24 * 1000 * expires));
		expires = expires.toGMTString();
		str += "; expires=" + expires;
	}
	if (secure && location.protocol == "https:") {
		str += "; secure";
	}

	document.cookie = str;
}
// -->
</script>

var cookieName = "count";
var cookieValue = isNaN(COOKIE[cookieName]) ? 0 : COOKIE[cookieName];		// count というクッキー名の値を取得
window.status = ++cookieValue;							// クッキー値（カウント）の更新と表示

setCookie(cookieName, cookieValue, "", "", 7);					// クッキー発行

<script type="text/javascript">
<!--
function getCookie(name) {
	if (!name || !document.cookie) return;

	var cookies = document.cookie.split("; ");
	for (var i = 0; i < cookies.length; i++) {
		var str = cookies[i].split("=");
		if (str[0] != name) continue;
		return unescape(str[1]);
	}
	return;
}
function setCookie(name, value, domain, path, expires, secure) {
	if (!name) return;

	var str = name + "=" + escape(value);
	if (domain) {
		if (domain == 1) domain = location.hostname.replace(/^[^\.]*/, "");
		str += "; domain=" + domain;
	}
	if (path) {
		if (path == 1) path = location.pathname;
		str += "; path=" + path;
	}
	if (expires) {
		var nowtime = new Date().getTime();
		expires = new Date(nowtime + (60 * 60 * 24 * 1000 * expires));
		expires = expires.toGMTString();
		str += "; expires=" + expires;
	}
	if (secure && location.protocol == "https:") {
		str += "; secure";
	}

	document.cookie = str;
}
// -->
</script>

var cookieValue = getCookie("count");				// count というクッキー名の値を取得
if (isNaN(cookieValue)) cookieValue = 0;			// クッキー値のチェック
window.status = ++cookieValue;					// クッキー値の更新と表示

setCookie("count", cookieValue, "", "", 7);			// クッキー発行