function isValidEmail(strEmail) {
	var strBadChars, strChar, strSuffix, intNumBadChars, intCount, intPos, intPosPeriod

	// --- CHECKING FOR BAD CHARACTERS ---
	strBadChars = ' /:,#\'"`$~!%^&*();<>?\\|{}[]';
	intNumBadChars = strBadChars.length
	for(intCount = 0;  intCount < intNumBadChars;  ++intCount) {
		strChar = strBadChars.substring(intCount, 1);
		if(strEmail.indexOf(strChar) > 0)
			return false;
	}

	// --- CHECKING FOR two of THE @ SIGN ---
	intPos = strEmail.indexOf('@@')
	if(intPos > 1)
		return false;	

	// --- CHECKING FOR two of PERIODS  ---
	intPos = strEmail.indexOf('..')
	if(intPos > 1)
		return false;			
		
	// --- CHECKING FOR THE @ SIGN ---
	intPos = strEmail.indexOf('@')
	if(intPos == -1)
		return false;

	// --- CHECKING FOR A . AFTER THE @ SIGN ---
	intPosPeriod = strEmail.indexOf('.', intPos);
	if(intPosPeriod == -1)
		return false;

	// --- CHECKING FOR AT LEAST 2 AFTER THE PERIOD ---
	if(strEmail.length - intPosPeriod < 3)
		return false;

	// --- ALL CHECKS OUT - MUST BE OKAY ---
	return true;
}
// ----- END: FOR STRING/NUMBER CONVERSIONS -----