function validateEmailAddress(emailAddress) {

	invalidChars = " /:,;+"

	if (emailAddress == "") {
		return false
	}
	for (i=0; i<invalidChars.length; i++) {
		badChar = invalidChars.charAt(i)
		if (emailAddress.indexOf(badChar,0) > -1) {
			return false
		}
	}
	atPos = emailAddress.indexOf("@",1)
	if (atPos == -1) {
		return false
	}
	if (emailAddress.indexOf("@",atPos+1) > -1) {
		return false
	}
	periodPos = emailAddress.indexOf(".",atPos)
	if (periodPos == -1) {
		return false
	}
	if (periodPos+3 > emailAddress.length)	{
		return false
	}
	return true
}