mysql怎么按单双数结果并类

mysql如何按单双数结果并类？
这是一个分页的代码，每页十条记录，按时间倒序排列。

PHP code

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$sql = mysql_query("SELECT * FROM article WHERE uid='132828' ORDER BY date LIMIT ".$number.",10 ");
$num = 1;
while($row = mysql_fetch_array($sql)){
   if($num ==1){
       echo '

'; } if($num ==5){ echo '
'; } //这里的代码如何写，才能按单双数并类？ if($num%5==0){ echo '
'; } $num++; }

最后我想输出的结果是

HTML code

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• 1st result
• 3rd result
• 5th result
• 7th result
• 9th result

• 2nd result
• 4rd result
• 6th result
• 8th result
• 10th result

HTML 视图

HTML code

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     ul            ul
 ------------ ------------
| 1st result | 2nd result |
 ------------ ------------
| 3rd result | 4th result |
 ------------ ------------
| 5th result | 6th result |
 ------------ ------------
| 7th result | 8th result |
 ------------ ------------
| 9th result | 10th result|
 ------------ ------------

------解决方案--------------------

PHP code

$num = 1;
while($row = mysql_fetch_array($sql)){
   if($num % 2)
   {
     $left[] = '

'.$row['title'].'

'; } else $right[] = '

'.$row['title'].'

'; } echo "

".implode("",$left).'

'>; echo "

".implode("",$right).'

'>;
------解决方案--------------------
也可通过移动指针完成