Numbering pagination Coding

/*this code copy than past to functions.php */

function pagination($pages = '', $range = 4)
    {
         $showitems = ($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 != $pages)
         {
             echo "<div class=\"pagination\"><span>Page ".$paged." of ".$pages."</span>";
             if($paged > 2 && $paged > $range+1 && $showitems < $pages) echo "<a href='".get_pagenum_link(1)."'>&laquo; First</a>";
             if($paged > 1 && $showitems < $pages) echo "<a href='".get_pagenum_link($paged - 1)."'>&lsaquo; Previous</a>";

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

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



/* code copy than past stylesheet*/

/* For Pagination Css */
.pagination{
clear:both;
font-size:11px;
line-height:13px;
margin-left:35px;
padding:20px 0;
}
.pagination span, .pagination a{
display:block;
float:left;
margin:2px 2px 2px 0;
padding:6px 9px 5px 9px;
text-decoration:none;
width:auto;
color:#fff;
background:#555;
}
.pagination a:hover{
color:#fff;
background:#3279BB;
}
.pagination .current{
padding:6px 9px 5px 9px;
background:#3279BB;
color:#fff;
}




/*copy this code than past your location to pagination ex: index.php */

<?php if (function_exists("pagination")) {
        pagination($additional_loop->max_num_pages);
    } ?>