check if post is unread

[Supryk]

yes that I know good to look in to forumread DB table too

guest have cookie

$last_read = my_get_array_cookie("threadread", $thread['tid']);
$forum_read = my_get_array_cookie("forumread", $fid);
if(isset($mybb->cookies['mybb']['readallforums']) && !$forum_read)
	{
		$forum_read = $mybb->cookies['mybb']['lastvisit'];
	}