var d = new Date();
var t_date = d.getDate();
var t_mon = d.getMonth();
if (t_mon == "11" && t_date >= "21" || t_mon == "00" || t_mon == "01" || t_mon == "02" && t_date < 21) {
document.write("");
} else if (t_mon == "02" && t_date >= "21" || t_mon == "03" || t_mon == "04" || t_mon == "05" && t_date < 21) {
document.write("");
} else if (t_mon == "05" && t_date >= "21" || t_mon == "06" || t_mon == "07" || t_mon == "08" && t_date < 21) {
document.write("");
} else if (t_mon == "08" && t_date >= "21" || t_mon == "09" || t_mon == "10" || t_mon == "11" && t_date < 21) {
document.write("");
}