// input value is a U.S. state abbreviation; set entered value to all uppercase

// also set companion field (NAME="<xxx>_expand") to full state name

function isUSState() {

	var inputStr = gField.value.toUpperCase()

	if (inputStr.length > 0 && USStates[inputStr] == null) {

		var msg = ""

		var firstChar = inputStr.charAt(0)

		if (firstChar == "A") {

			msg += "\n(Alabama = AL; Alaska = AK; Arizona = AZ; Arkansas = AR)"

		}

		if (firstChar == "D") {

			msg += "\n(Delaware = DE; District of Columbia = DC)"

		}

		if (firstChar == "I") {

			msg += "\n(Idaho = ID; Illinois = IL; Indiana = IN; Iowa = IA)"

		}

		if (firstChar == "M") {

			msg += "\n(Maine = ME; Maryland = MD; Massachusetts = MA; Michigan = MI; Minnesota = MN; Mississippi = MS; Missouri = MO; Montana = MT)"

		}

		if (firstChar == "N") {

			msg += "\n(Nebraska = NE; Nevada = NV)"

		}

		alert("Check the spelling of the state abbreviation." + msg)

		gField.focus()

		gField.select()

		return false

	}

	gField.value = inputStr

	var expandField = eval("window." + gFrame.name + ".document.forms[0]." + gField.name + "_expand")

	expandField.value = USStates[inputStr]

	return true

}