// checks U.S. States
function checkstate(zz)
{
	tt = zz.toUpperCase()
	if (tt != "AL" && tt != "AK" && tt != "AS" && tt != "AZ" && tt != "AR" && tt != "CA" && tt != "CO" && tt != "CT" && tt != "DE" && tt != "DC" && tt != "FM" && tt != "FL" && tt != "GA" && tt != "GU" && tt != "HI" && tt != "ID" && tt != "IL" && tt != "IN" && tt != "IA" && tt != "KS" && tt != "KY" && tt != "LA" && tt != "ME" && tt != "MH" && tt != "MD" && tt != "MA" && tt != "MI" && tt != "MN" && tt != "MS" && tt != "MO" && tt != "MT" && tt != "NE" && tt != "NV" && tt != "NH" && tt != "NJ" && tt != "NM" && tt != "NY" && tt != "NC" && tt != "ND" && tt != "MP" && tt != "OH" && tt != "OK" && tt != "OR" && tt != "PW" && tt != "PA" && tt != "PR" && tt != "RI" && tt != "SC" && tt != "SD" && tt != "TN" && tt != "TX" && tt != "UT" && tt != "VT" && tt != "VI" && tt != "VA" && tt != "WA" && tt != "WV" && tt != "WI" && tt != "WY" && tt != "AE" && tt != "AA" && tt != "AE" && tt != "AE" && tt != "AE" && tt != "AP")
	{ return false; }
	return true;
}