var dt = new Date();
var ARY_LUCK = [5, 5, 4, 4, 4, 3, 3, 3, 3, 2, 2, 1];
var svluck = getCookie("shiftupnetluck");
//svluck = "";	// debug
if (svluck == "") {
	svluck = ARY_LUCK[dt.getTime() % ARY_LUCK.length];
	var tm =  24 * 3600 * 1000 - ((dt.getTime() + 9 * 3600 * 1000) % (24 * 3600 * 1000));
	setCookie("shiftupnetluck", svluck, tm);
}

function getLuckyStar() {
	var str = "";
	for (var i = 0 ; i < 5 ; i++) {
		if (i < svluck) {
			str += STR_STAR0;
		} else {
			str += STR_STAR1;
		}
	}
	return str;
}
function printLuck() {
	document.write(getLuckyStar());
}