พี่ๆคะ จะเขียนอย่างไรดีคะ ให้แสดงเฉพาะสถานะ wait ส่วนสถานะok ไม่ต้องแสดง

<form id="form1" method="post" action="checkorder.php">
    <select name="order_number"  >
	<? 
	$result = show_data("buy_order");
	$com_result = mysql_query("select DISTINCT order_number from buy_order ORDER BY order_number desc ");
	$num=0;
	
	while($obj = mysql_fetch_object($com_result))
	{
		if ($obj->order_number==$order_number){
		echo "<option value = ".$obj->order_number." selected=\"selected\" >" .$obj->order_number." </option>" ;
		
		}
		else{
		echo "<option value = ".$obj->order_number." >" .$obj->order_number." </option>" ;
		}
	
	}
   ?>
          </select>
  <input type="submit" name="Submit" value="ค้นหา" />
 </form>