CIBlockDocumentWebdav::__get_user_fullname

function __get_user_fullname($ID)
		{
			$ID = intval($ID);
			$result = "";
			if ($ID > 0)
			{
				if (!array_key_exists("User".$ID, $GLOBALS["WEBDAV"]["CACHE"]))
				{
					$db = CUser::GetByID($ID);
					if ($db && $res = $db->GetNext())
					{
						$result = CUser::FormatName(CSite::GetNameFormat(false), $res);
						$result = (empty($result) ? $res["LOGIN"] : $result);
					}
					$GLOBALS["WEBDAV"]["CACHE"]["User".$ID] = $result;
				}
				else
				{
					$result = $GLOBALS["WEBDAV"]["CACHE"]["User".$ID];
				}
			}
			return $result;
		}