$sql5="SELECT * FROM tb_use INNER JOIN tb_use1 ON tb_use.id_use = tb_use1.id_use
WHERE tb_use1.id_per = '".$_GET['id_per']."'
GROUP BY tb_use.id_use";
$rs5=mysql_query($sql5);
$data5=mysql_fetch_array($rs5);
$sql1="SELECT * FROM tb_use
WHERE id_use NOT IN ('".$data5['id_use']."')";
$rs1=mysql_query($sql1);
while($data1=mysql_fetch_assoc($rs1)){?>
<option value="<?=$data1['id_use']?>"><?=@$data1['name_use']?></option>
<?php } ?>