public function getField($fieldName=null) {
		$array = array_merge($this->getMissing(),$this->getEscaped(),$this->getUnknown());
		if(key_exists($fieldName,$array)==true) return $array[$fieldName];
		return $array;
	}

	public function getErrorMsg($fieldName=null) {
		$errors = $this->getMessages();
		foreach($errors as $k => $v) {
			foreach($v as $kk => $vv) {
				$tab[$k][]=$vv;
			}
		}
		if(!is_null($fieldNamev)) {
			if(key_exists($fieldName,$tab)) {
				return $tab[$fieldName];
			} else return false;
		} else if(count($tab)<1) return false;
		return $tab;
	}
}