rehabilitate the use of $start, and remove unused parameter

mobile.netbiblio.php

@@ -18,7 +18,7 @@ class NetBiblio extends WebService
     private $login = '';
     private $client = 'website';
 
-    public function AddDownloadLog($IP, $client, $login, $code)
+    public function AddDownloadLog($client, $login, $code)
     {
         $client = str_replace("'", "", $client);
         $login = str_replace("'", "", $login);
@@ -292,7 +292,7 @@ class NetBiblio extends WebService
             'queryText' => $query,
             'queryType' => is_numeric($query) && strlen($query) <= 5 ? 'code' : 'text',
             'count' => $limit,
-            'page' => 0,
+            'page' => max(intval($start) - 1, 0),
         );
         $data = $this->NewSearch(json_encode($query));