<?
$katala = mysql_query("select * from kat order by id asc") or die(mysql_error());
$i = 0;
while ($sea = mysql_fetch_array($katala)) {
if ($i%2 == 0) { 
?>
<li class="even">
<?
} else {
?>
<li class="odd">
<?
}
?>
<a href="<?=$sea['tr']?>.klipleri"><?=$sea['title']?></a></li>
<?
$i++; 
} 
?>