fix javascript pager bug

      form.action = url;

      form.submit();

    }

    function next(){

    function next(n){

      setSettings();

      var url = "/r/{{ r + pageLength }}";

      var multiplier = {{ r }} + ( n * {{ pageLength }});

      var url = "/r/"+multiplier;

      postURL(url);

    }

    function previous(){

    function previous(n){

      setSettings();

      var page = {{ r - pageLength }};

      var page = {{ r }} - ( n * {{ pageLength }});

      if(page < 0){

        page = 0;}

      var url = "/r/" + page;