<script>
 $(document).ready(function(){
      load_data();
      function load_data(page)
      {
           $.ajax({
                url:"pagination2.php",
                method:"GET",
                data:{page:page},
                success:function(data){
                     $('#page').html(data);
                     //alert('Successfully called');
                },
              //error:function(exception){alert('Exeption:'+exception);}
           })
      }
     //load_data(1);

      $(document).on('click', '.pagination_link', function(){
           var page = $(this).attr("id");
           load_data(page);
      });


 });
 </script>

if($page_nb > 1) {
    //echo "<a href='index_all.php?page=".$prev_page."'>Back</a>";
    echo "<span class='pagination_link' style='cursor:pointer;' id='".$prev_page."'>Back</span>";

}

if ( $products_count > $check ) {

    for ( $i = max( 1, $page_nb - 5 ); $i <= min( $page_nb + 5, $limit ); $i++ ) {
        if ( $current_page == $i ) {
            echo "<span class="selected">{$i}</span>";
        } else {
            //echo "<a href="{$url}?page=" . $i . "">{$i}</a>";
            echo "<span class='pagination_link' style='cursor:pointer;' id='".$i."'>".$i."</span>";
        }
      }
    }



if ($products_count > $check) {

$next_page = $page_nb + 1;
    //echo "<a href='index_all.php?page=".$next_page."'>Next</a>";
    echo "<span class='pagination_link' style='cursor:pointer;' id='".$next_page."'>Next</span>";

}