Select ข้อมูลจาก Database เพื่อมาแสดง ช่วยดูให้หน่อยครับ

$sql = "SELECT department.ThName, contact.Type, contact.Detail
FROM contact, department
WHERE Type_Department =  'คณะ'
AND department.Id_Department = contact.Id_Department";
$result=mysql_query($sql);


<?php
while($rows=mysql_fetch_array($result)){
	
?>

<tr>
<td bgcolor="#FFFFFF"><? echo $rows['ThName']; ?></td>
<td bgcolor="#FFFFFF"><? echo $rows['Type']; ?></td>
<td bgcolor="#FFFFFF"><? echo $rows['Detail']; ?></td>
 <?php

}
?>

$sql = "SELECT department.ThName, contact.Type, contact.Detail
FROM contact, department
WHERE Type_Department =  'คณะ'
AND department.Id_Department = contact.Id_Department";
$result=mysql_query($sql);


<?php
$AV_JAPAN=0;
while($rows=mysql_fetch_array($result)){
if ($AV_JAPAN !== $rows['ThName']) {  $AV_ONLINE="SHOW"; $AV_JAPAN=$rows['ThName'];  }else {  $AV_ONLINE="HIDE";   }
?>

<tr>
<?php 
if ($AV_ONLINE=="SHOW") {
?>
<td bgcolor="#FFFFFF"><? echo $rows['ThName']; ?></td>
<?php
}  if ($AV_ONLINE=="HIDE") {  echo "<td bgcolor='#FFFFFF'></td>"; } ?>
<td bgcolor="#FFFFFF"><? echo $rows['Type']; ?></td>
<td bgcolor="#FFFFFF"><? echo $rows['Detail']; ?></td>
<?php
}
?>