pagination on random books

NetBiblio.php

@@ -509,10 +509,11 @@ class NetBiblio extends WebService
      *
      * @param int $number Number of random books to return
      * @param null $seed
+     * @param int $page
      * @return array
      * @throws WebException
      */
-    public function GetRandomBooks($number = 100, $seed = null) {
+    public function GetRandomBooks($number = 100, $seed = null, $page = 0) {
         if(is_null($seed)) {
             $seed = time();
         }
@@ -520,7 +521,7 @@ class NetBiblio extends WebService
         $bs = new BookSearch();
         $bs->addSortField('random_'.$seed);
         $bs->addQuery(1, 'visible');
-        $results = $bs->getResults(0, $number);
+        $results = $bs->getResults($page, $number);
         return $this->AddBookData($results['books']);
     }