global $userdata;
   global $post_type;
   global $wpdb;
   $postintervall = date('Y-m-d H:i:s', $s2member_last_payment_time );
   $item_count = $wpdb->get_var( "SELECT count(*) FROM $wpdb->posts WHERE post_status = 'publish' AND post_author = $userdata->ID AND post_date > '$postintervall'" );
    if(( $item_count >= 2 ) && (current_user_is("s2member_level1")) )
  { wp_die( 'Do not create too much posts.','check-limit' ); }

return;   }
}`