سوال: محدودیت در پست های یک صفحه

یه نمونه ساده
function news()

{

    if(isset($_GET['id']) && $_GET['id'] != '' && is_numeric($_GET['id'])) {

        $id = (int) $_GET['id'];

        $res = mysql_query("SELECT * FROM `tbl_news` WHERE (`id`='{$id}') ORDER BY `id` LIMIT 1");

    }

    else {

        $page = (isset($_GET['page']) && is_numeric($_GET['page'])) ? (((int) $_GET['page']) - 1) : 0;

        if($page < 0) {

            $page = 0;

        }

        $perpage = 3;

        $start = ($page * $perpage);

        $res = mysql_query("SELECT * FROM `tbl_news` ORDER BY `id` desc LIMIT {$start}, {$perpage}");

        if($res && mysql_num_rows($res) > 0) {

			      				while($row=mysql_fetch_assoc($res))

				  					{

 echo'



مطالب شما



		

		';

            }

        }

        $count = mysql_result(mysql_query('SELECT COUNT(*) AS `count` FROM `tbl_news`'), 0, 0);

        $count = ceil($count / $perpage);

        for($i = 1; $i <= $count; $i++) {

            if($i != ($page + 1)) {

                echo '<a href="index.php?page='.$i.'" id="textpage">'.$i.'</a> ';

            }

            else {

                echo '<span id="textpagea">'.$i.'</span> ';

            }

        }

    }

}