function editor($field, $value) {
		$setting = string2array($this->fields[$field]['setting']);
		$enablesaveimage = $setting['enablesaveimage'];
		if(isset($_POST['spider_img'])) $enablesaveimage = 0;
		if($enablesaveimage) {
			$site_setting = string2array($this->site_config['setting']);
			$watermark_enable = intval($site_setting['watermark_enable']);
			$value = $this->attachment->download('content', $value,$watermark_enable);
		}
		return $value;
	}