function isBlank(curField,sMessage) {
	bAllowed = true

	if (curField.value == '') {
		bAllowed = false
		curField.focus()
		alert(sMessage)
	}
	else if (curField.value != '') {
		for (iChr = 0; iChr < curField.value.length; iChr++) {
			if (curField.value.charAt(iChr) != '') {
				bAllowed = true
				//exit();
			}
		}

		if ((!bAllowed)) {
			bAllowed = false
			curField.focus()
			alert(sMessage)
		}
	}
	return (bAllowed)
}