Как после выборки провести сортировку только выбранных пользователей

<form>
От<input type=text name=v1>
До<input type=text name=v2>
<br><br>
<input type=submit name=age value ="Подобрать">
</form>
<?php 
$con = mysql_connect("localhost","....","...");
if (!$con)
   {
   die('Could not connect: ' . mysql_error());
   }
mysql_select_db(".....", $con);
$sql = mysql_query("SET CHARACTER SET cp1251_koi8");
$result = mysql_query("SELECT * FROM users ORDER BY Fam,name");
mysql_query($order);
echo $myrow_comcont['title'];
echo $myrow_comcont['com'];
echo "<table border='1'>";
 
$key_array = array('Fam','Name','Otch','age','cvet');
$sort_array = array('asc','desc');
 
if (isset($_GET['key']))
{
    $key=$_GET['key'];
    $sort=$_GET['sort'];
}
else
{
    $key='Fam';
    $sort='desc';
}
 
if(in_array($key, $key_array) && in_array($sort, $sort_array))
{
    $query = "SELECT * FROM users ORDER BY $key $sort ";
    $result = mysql_query($query);
}
else exit("неверный формат запроса!"); 
 
if($sort=='asc')
{
   $sort='desc';
   $vid_sort=$sort_up;
}
else
{
   $sort='asc';
   $vid_sort=$sort_down;   
}
if (isset($_GET['age'])) {
        if (empty($_GET['v1']))  {echo 'Пустой запрос!';
            $result = mysql_query('select * from users ');}
         else { $result = mysql_query('select * from users WHERE age BETWEEN '.$_GET['v1'].' AND '.$_GET['v2']) or die(mysql_error());
    }
}
print "<table border = 1 align = center>";
print "<tr>
<th width='50'><a href=\"word5.php?key=Fam&sort=$sort\">Fam</a></th>
<th width='50'><a href=\"word5.php?key=Name&sort=$sort\">Name</a></th>
<th width='50'><a href=\"word5.php?key=Otch&sort=$sort\">Otch</a></th>
<th width='50'><a href=\"word5.php?key=age&sort=$sort\">age</a></th>
<th width='50'><a href=\"word5.php?key=cvet&sort=$sort\">cvet</a></th>
</th></tr>";
// Отформатировать и вывести каждую строку таблицы
while ($row = mysql_fetch_array($result))
{
    print "<tr>";
    print '<td>'.$row['Fam'].'</td><td>'.$row['Name'].'</td><td>'.$row['Otch'].'</td><td>'.$row['age'].'</td><td>'.substr($row['cvet'],0,30).'</td></td>';
    print "</tr>";
}
// Завершить таблицу
print "</table>";