// ...
<?php
 function RestrictionBoxStatus ($post) {
  $PostID = $post -> ID;
  if ($post -> post_type == "page") {
   $TheIDs = get_opt ("pages");
  }
  else {
   $TheIDs = get_opt ("posts");
  }
  if (!is_array ($page_ids)) {
   $page_ids = array ();
  }
?>
<input name="pr" type="hidden" value="update">
<input type="checkbox" name="restriction-status"<?php if (in_array ($PostID, $TheIDs)) echo ' checked="checked"'; ?>>
Restrict This <?php echo $post -> post_type == "post" ? "Post" : "Page"; ?>
<p>This setting apply only to this <b><u>
<?php
  $post -> post_type == 'post' ? 'post' : 'page' . '</u></b> only.';
  _e($post);
?></p>
<?php
 }
 //..
?>