Pagination of Wordpress

<?php

/* This code for pagination */
function pagination($pages = '', $range = 2)
    {
         $showitems = ($range * 2)+1;

         global $paged;
         if(empty($paged)) $paged = 1;

         if($pages == '')
         {
             global $wp_query;
             $pages = $wp_query->max_num_pages;
             if(!$pages)
             {
                 $pages = 1;
             }
         }

         if(1 != $pages)
         {
             echo "<ul class=\"pagination\"><li><a>Page ".$paged." of ".$pages."</a></li>";
             if($paged > 1 ) echo "<li><a href='".get_pagenum_link(1)."'>&laquo; First</a></li>";
             if($paged > 1 ) echo "<li><a href='".get_pagenum_link($paged - 1)."'>&lsaquo; Previous</a></li>";

             for ($i=1; $i <= $pages; $i++)
             {
                 if (1 != $pages &&( !($i >= $paged+$range+1 || $i <= $paged-$range-1) || $pages <= $showitems ))
                 {
                     echo ($paged == $i)? "<li class=\"current\"><a>".$i."</a></li>":"<li><a href='".get_pagenum_link($i)."' class=\"inactive\">".$i."</a></li>";
                 }
             }

             if ($paged < $pages ) echo "<li><a href=\"".get_pagenum_link($paged + 1)."\">Next &rsaquo;</a></li>";
             if ($paged < $pages-1 &&  $paged+$range-1 < $pages ) echo "<li><a href='".get_pagenum_link($pages)."'>Last &raquo;</a></li>";
             echo "</ul>\n";
         }
    }

?>

/* Output of this code*/
<?php if (function_exists("pagination")) :?>
    <div class="breadcrumbs">
        <nav>
            <?php {pagination($additional_loop->max_num_pages);} ?>
        </nav>
    </div>
<?php endif; ?>