Постраничная навигация. Не получается

Подскажите пожалуйста как сделать здесь постраничную навигацию

        <?php
        require 'scripts/connect.php'; 
$sqlAdd = (!empty($_GET["sort"]) && $_GET["sort"]=='name') ? " Order by name" : ""; 
$sql_select = "SELECT * FROM users"; //Пока то выводите без $sqlAdd 
$result = mysql_query($sql_select); 
while($row = mysql_fetch_array($result)){ 
    echo "<tr>";
if($row['name'] !="") 
echo "<td>" .$row['name'] . "</td>"; 
if($row['last_name'] !="") 
echo "<td>" .$row['last_name'] ."</td>"; 
if($row['img'] !="") 
echo "<td><img src=/db1/scripts/upload/" .$row['img'] . " style=\"width: 70px;height: 50px;\"></td>";
 else {
  echo "<td>Нет логотипа</td>";
}
if($row['email'] !="") 
echo "<td>" .$row['email'] . "</td>"; 
if($row['facebook'] !="") 
echo "<td>" .$row['facebook'] . "</td>"; 
if($row['vk'] !="") 
echo "<td>" .$row['vk'] . "</td>";
 else {
  echo "<td>Нет страницы</td>";
 }
if($row['time'] !="") 
echo "<td>" .$row['time'] . "</td>"; 
if($row['spec'] !="") 
echo "<td>" .$row['spec'] . "</td>"; 
    echo "</tr>";
}

?>