php分页实现的有关问题

<table width=600 border=0 align=center> 
<? 
include("pageconfig.php"); 
$mysql_server_name = 'localhost'; 
$mysql_username = 'wind'; 
$mysql_password = '2008'; 
$mysql_database = 'wind'; 
mysql_connect($mysql_server_name,$mysql_username,$mysql_password); 
mysql_select_db($mysql_database);
$counter = mysql_query ("select count(*) as counte from word"); 
$myrow=mysql_fetch_array($counter); 
$total=$myrow['counte']; 
$firstcount=1;$displaypg=10;
pageft($total,10); 
$conn = mysql_connect($mysql_server_name,$mysql_username,$mysql_password); 
mysql_select_db($mysql_database);
$result = mysql_query ("select * from word limit $firstcount,$displaypg ");
        echo("<table border=1;> ");     
while($myrow = mysql_fetch_row($result))
{ 
                     echo("<tr>");
                        for ($j=0;$j<7;$j++)
                            { 
                             echo("<td>");
                             printf("%s",$myrow[$j]);//输出标题 
                             echo("</td>"); 
                             } 
                     echo("</tr>");

} 
         echo("</table>");
?> 
<td colspan=5 bgcolor=#CCCCCC><?=$pagenav;?></td> 
</tr> 
</table> 
pageconfig.php代码：
<? 
if(!function_exists(pageft)){ 
function pageft($totle,$displaypg=20,$url=''){ 
global $page,$firstcount,$pagenav,$_SERVER; 
$GLOBALS["displaypg"]=$displaypg; 
if(!$page) $page=1; 
if(!$url){ $url=$_SERVER["REQUEST_URI"];} 
$parse_url=parse_url($url); 
$url_query=$parse_url["query"]; if($url_query){ 
$url_query=ereg_replace("(^|&)page=$page","",$url_query); 
$url=str_replace($parse_url["query"],$url_query,$url); 
if($url_query) $url.="&page"; else $url.="page"; 
}else { 
$url.="?page"; 
} 
$lastpg=ceil($totle/$displaypg); $page=min($lastpg,$page); 
$prepg=$page-1; //上一页 
$nextpg=($page==$lastpg ? 0 : $page+1); //下一页 
$firstcount=($page-1)*$displaypg; 
$pagenav="显示第 <B>".($totle?($firstcount+1):0)."</B>-<B>".min($firstcount+$displaypg,$totle)."</B> 条记录，共 $totle 条记录"; 
if($lastpg<=1) return false; 
$pagenav.=" <a href='$url=1'>首页</a> "; 
if($prepg) $pagenav.=" <a href='$url=$prepg'>前页</a> "; else $pagenav.=" 前页 "; 
if($nextpg) $pagenav.=" <a href='$url=$nextpg'>后页</a> "; else $pagenav.=" 后页 "; 
$pagenav.=" <a href='$url=$lastpg'>尾页</a> "; 
$pagenav.=" 到第 <select name='topage' size='1' onchange='window.location=\"$url=\"+this.value'>\n"; 
for($i=1;$i<=$lastpg;$i++){ 
if($i==$page) $pagenav.="<option value='$i' selected>$i</option>\n"; 
else $pagenav.="<option value='$i'>$i</option>\n"; 
} 
$pagenav.="</select> 页，共 $lastpg 页"; 
} 
} 
?>