Sorting question

hello . just hoping i can get help on a question by fellow dp members.


I have a custom MGP site. i want to load the movies randomly. any idea how i do it ?
this is the code on the homepage how it sorts the movies..

<?php
for ($i=0 ; $i<count($Data) ; $i++) {
if ($i%5==0 && $i!=0) {
echo '</tr>';
}
if ($i%5==0 || $i==0) {
echo '<tr>';
}
?>
<td width="20%"><a href="play.php?id=<?=$Data[$i]['id']?>"><img src="<?=$Data[$i]['thumb']?>" alt="<?=$Data[$i]['url']?>" width="150" height="150" border="0" style="border:solid 1px #6699FF" title="<?=$Data[$i]['desc']?>" /></a></td>
<?php
if ($i==count($Data)-1) {
echo '</tr>';
}
}
?>
</table>
</td></tr>
<tr height="10"><td></td>
</tr>
<tr>
<td align="center"><table width="60" border="0">
<tr>
<td><?php
for ($i=0 ; $i<count($No) ; $i++) {
?></td>
<td><a href="?p=<?=$No[$i]?>">
<?=$No[$i]?>
</a></td>
<td><a href="?p=<?=$No[$i]?>">
<?php