function validateemailaddress(emailaddress)
	{	var emailPattern = /^(\".*\"|[A-Za-z0-9_\x2D]+(\.[A-Za-z0-9_\x2D]+)*)@(\[\d{1,3}(\.\d{1,3}){3}]|[A-Za-z0-9_\x2D]+(\.[A-Za-z0-9_\x2D]+)+)$/;
		var matchArray = emailaddress.match(emailPattern);
		if (matchArray == null) 
			{	return (false); } 
		else 
			{	return (true);	}
	}