function validEmail(emailValue) {
	var validEmail = 1;
	
	var aSpace = emailValue.indexOf(' ');
	var atPos = emailValue.indexOf('@');
	var afterAt = emailValue.substr(atPos+1,emailValue.length);
	var anotherAt = afterAt.indexOf('@');
	var dotPos = afterAt.indexOf('.');
	var afterDot = afterAt.substr(dotPos+1,afterAt.length);
	
	if ( (aSpace>0) || (atPos<0) || (anotherAt>=0) || (dotPos<0) || (afterDot.length<1) ) { validEmail = 0; }
	
	return validEmail;
}