var cookie = new Object();
cookie.setCookie = function (name, value, option) {
	var str = name + "=" + escape(value);
	if (option) {
		if (option.expireDays) {
			var date = new Date();
			var ms = option.expireDays * 24 * 3600 * 1000;
			date.setTime(date.getTime() + ms);
			str += "; expires=" + date.toGMTString();
		}
		if (option.path) {
			str += "; path=" + path;
		}
		if (option.domain) {
			str += "; domain=" + domain;
		}
		if (option.secure) {
			str += "; secure=" + secure;
		}
	}
	document.cookie = str;
};
cookie.getCookie = function (name) {
	var cookieArray = document.cookie.split("; ");
	var cookie = new Object();
	for (var i = 0; i < cookieArray.length; i++) {
		var arr = cookieArray[i].split("=");
		if (arr[0] == name) {
			return unescape(arr[1]);
		}
	}
};
cookie.deleteCookie = function (name) {
	this.setCookie(name, "", {expireDays:-1});
};