do, while

Подскажите что не так.

<? 
$result2 = mysql_query ("SELECT * FROM history WHERE key='$id' ORDER BY date");
$myrow2 = mysql_fetch_array ($result2);
$key = $myrow2['key'];
echo ("<table width='1000px'><tr>");
$i=1;
do {
if ($myrow2['num'] == $num) { ($color = "class='green'"); }  /* Интересен вот этот момент */
$myrow2['date']=date('d-m-Y', strtotime($myrow2['date']));
if ( ! ( $i % 10 ) ) { print "</tr><tr>";}
 $i++;
printf ("<td><form id='edit%s' name='edit%s' method='post' action='select_history.php'>
		<label>
	<input name='id_client' type='hidden' value='$id_client' />
	<input name='id' type='hidden' value='$key' />
	<input name='num' id='num' type='hidden' value='%s' />
	<input type='submit' $color name='edit%s' id='edit%s' value='%s' />
  </label>
</form></td>", $myrow2['num'], $myrow2['num'], $myrow2['num'], $myrow2['num'], $myrow2['num'], $myrow2['date']);	}
while ($myrow2 = mysql_fetch_array ($result2));
echo ("</tr></table>");
?>

На выхлопе класс должен добавляться к конкретной записи, НО добавляется ко всем следующим после выбранного. Почему что не так.

Выхлоп

<table width='1000px'><tr><td><form id='edit125' name='edit125' method='post' action='select_history.php'>
		<label>
	<input name='id_client' type='hidden' value='70' />
	<input name='id_animal' type='hidden' value='66' />
	<input name='num' id='num' type='hidden' value='125' />
	<input type='submit'  name='edit125' id='edit125' value='26-02-2008' />
  </label>
</form></td><td><form id='edit129' name='edit129' method='post' action='select_history.php'>

		<label>
	<input name='id_client' type='hidden' value='70' />
	<input name='id_animal' type='hidden' value='66' />
	<input name='num' id='num' type='hidden' value='129' />
	<input type='submit'  name='edit129' id='edit129' value='25-07-2008' />
  </label>
</form></td><td><form id='edit132' name='edit132' method='post' action='select_history.php'>
		<label>
	<input name='id_client' type='hidden' value='70' />

	<input name='id_animal' type='hidden' value='66' />
	<input name='num' id='num' type='hidden' value='132' />
	<input type='submit'  name='edit132' id='edit132' value='25-07-2008' />
  </label>
</form></td><td><form id='edit115' name='edit115' method='post' action='select_history.php'>
		<label>
	<input name='id_client' type='hidden' value='70' />
	<input name='id_animal' type='hidden' value='66' />
	<input name='num' id='num' type='hidden' value='115' />

	<input type='submit' class='green' name='edit115' id='edit115' value='16-01-2009' />
  </label>
</form></td><td><form id='edit120' name='edit120' method='post' action='select_history.php'>
		<label>
	<input name='id_client' type='hidden' value='70' />
	<input name='id_animal' type='hidden' value='66' />
	<input name='num' id='num' type='hidden' value='120' />
	<input type='submit' class='green' name='edit120' id='edit120' value='16-01-2009' />
  </label>

</form></td><td><form id='edit124' name='edit124' method='post' action='select_history.php'>
		<label>
	<input name='id_client' type='hidden' value='70' />
	<input name='id_animal' type='hidden' value='66' />
	<input name='num' id='num' type='hidden' value='124' />
	<input type='submit' class='green' name='edit124' id='edit124' value='16-01-2009' />
  </label>
</form></td><td><form id='edit133' name='edit133' method='post' action='select_history.php'>
		<label>
	<input name='id_client' type='hidden' value='70' />

	<input name='id_animal' type='hidden' value='66' />
	<input name='num' id='num' type='hidden' value='133' />
	<input type='submit' class='green' name='edit133' id='edit133' value='16-01-2009' />
  </label>
</form></td></tr></table>