// クッキーをセットする
var setCookie = function(key,data,term){
    if(!navigator.cookieEnabled)return;
    var day = new Date();
    day.setTime(day.getTime() + (term * 1000 * 60 * 60 * 24));
    s2day = day.toGMTString();
    document.cookie = key + "=" + escape(data) + ";expires=" + s2day+ ";path=/";
};

// クッキーを取得する
var getCookie = function(key){
	if(typeof(key) == "undefined")return null;
    key+="=";
    var scookie = document.cookie + ";";
    var start = scookie.indexOf(key);
    if (start != -1){
    end = scookie.indexOf(";", start);
        var data = unescape(scookie.substring(start + key.length, end));
    }else{
        var data='';
    }
    return data;
};