ส่งค่าจาก popup มา form หลัก..........ค่าของข้อมูลจากlistmenu มันไม่แสดง

<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>รุ่นสินค้า</title>
<script type="text/javascript">
	function OpenBrand() {
		var myWindow=window.open("search_type.php",'windowRef','width=1600,height=900');
		if (!myWindow.opener) myWindow.opener = self;
		
	}
	
	function PopDel() {
		var myWindow=window.open("del03.php",'windowRef','width=1600,height=900');
		if (!myWindow.opener) myWindow.opener = self;
		
	}

</script>
<? include"connect.php";?>
<?
$strSQL 		= "select * FROM model ORDER BY type_id DESC LIMIT 0,1";
$objQuery 	  = mysql_query($strSQL)or die ("select error");
$objResult 	 = mysql_fetch_array($objQuery);
$type_id 	   = $objResult["type_id"];
$type_id 	   = $type_id+1;
?>
<fieldset>
<form action="save_set03.php" method="post">
<table  align="center" style="font-family:Verdana, Geneva, sans-serif; font-size:13px">
<tr>
	<th align="left">รหัสแบบรถ :</th>
    <td align="right"><input type="text" id="type_id" name="type_id" value="<?=$type_id;?>"></td>
    <td width="75"></td>
</tr>
</table>
</fieldset>
<br>
<fieldset>
<? include"s1.php";?>

<table align="center" style="font-family:Verdana, Geneva, sans-serif; font-size:13px">
<tr>
	<th height="43" align="right">เลือกยี่ห้อรถ :</th>
    <td align="left">
            <select id="txtbrand" name="txtbrand">
                <option value="">------------เลือก-----------</option>
                <?php
                    $result = mysql_query("
                        SELECT
                            brand_id,
                            brand_name
                        FROM 
                            brand
                        ORDER BY CONVERT(brand_id USING TIS620) ASC;
                    ");
                    
                    while($row = mysql_fetch_assoc($result))
					{
                        echo '<option value="', $row['brand_id'], '">', $row['brand_name'],'</option>';
                    }
                ?>
            </select>
    <select id="txtclass" name="txtclass">
    <option value="<?=$class_id;?>" selected="selected" ><?=$class_name;?></option>
    	<option value="">------------เลือก-----------</option>
    </select><span id="waitClass"></span>
	</td>
</tr>
<tr>
	<th align="right">ชื่อแบบรถ :</th>
    <td align="left"><input type="text" id="type_name" name="type_name" onKeyUp="javascript:this.value=this.value.toUpperCase();"></td>
    <td><button type="submit" value="บันทึก"><img src="image/save.png" />บันทึก</button></td>
</tr>
</table>
</form>
</fieldset>
<br />
<fieldset>
<table width="400" align="center" style="font-family:Verdana, Geneva, sans-serif; font-size:13px">
<tr>
	<th align="center"><a href="SET03.php"><img src="image/add.png" width="32" height="32" /><br />เพิ่มข้อมูล</a></th>
	<th align="center"><a href="" onClick="Javascript:OpenBrand();"><img src="image/search1.png" /><br />ค้นหาข้อมูล</a></th>
	<th align="center"><a href="" onClick="Javascript:PopDel();"><img src="image/delete.png" width="32" height="32" /><br />ลบข้อมูล</a></th>
	<th align="center"><a href="report_set03.pdf"><img src="image/print.png" width="32" height="32"/><br />รายงาน</a></th>
	<th align="center"><a href="" onClick="JavaScript:window.close();"><img src="image/exit.png" width="32" height="32"/><br />ปิดระบบ</a></th>
</tr>
</table>
</fieldset>

<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>ค้นหาอะไหล่</title>
<?  include"connect.php";?>
<?  include"s1.php";?>

<script language="javascript">
	function selData(intLine,type_id,type_name,brand_id,class_id)
	{
		var stype_id = self.opener.document.getElementById("type_id" +intLine);
		stype_id.value = type_id;

		var stype_name = self.opener.document.getElementById("type_name" +intLine);
		stype_name.value = type_name;
		
		var stxtbrand = self.opener.document.getElementById("txtbrand" +intLine);
		stxtbrand.value = brand_id;
		
		var stxtclass = self.opener.document.getElementById("txtclass" +intLine);
		stxtclass.value = class_id;
		

		window.close();
	}
</script>
<fieldset>

<form name="frmSearch" method="get" action="<?=$_SERVER['SCRIPT_NAME'];?>">
            <select id="txtbrand" name="txtbrand" value="<?=$_GET["brand_name"];?>">
                <option value="">------------เลือก-----------</option>
                <?php
                    $result = mysql_query("SELECT brand_id,brand_name FROM  brand
                        ORDER BY CONVERT(brand_id USING TIS620) ASC;
                    ");
                    
                    while($row = mysql_fetch_assoc($result))
					{
                        echo '<option value="', $row['brand_id'], '">', $row['brand_name'],'</option>';
                    }
                ?>
            </select>
    <select id="txtclass" name="txtclass" value="<?=$_GET["class_name"];?>">
    	<option value="">------------เลือก-----------</option>
    </select><span id="waitClass"></span>
  </td>
  <button type="submit" id="button"><img src="image/search1.png" width="16" height="16" />  ค้นหา</button>
  <button type="button" name="Submit" value="Search" onClick="JavaScript:window.close();"/><img src="image/exit.png" width="18" height="18"/>ปิดระบบ</button>
</form>
</fieldset>
<br />
<fieldset>
<?php
$query=mysql_query("SELECT * from model WHERE class_id = '$txtclass' AND brand_id = '$txtbrand' ");
?>
<table style="font-size:12px; font-family:Verdana, Geneva, sans-serif;">
<tr height="35" bgcolor="#CCCCCC">
    <th width="161"> <div align="center">รหัสแบบรถ</div></th>
    <th width="248"> <div align="center">ชื่อแบบรถ</div></th>
</tr>
<?
	$i=1;
	while($arr_product=mysql_fetch_array($query)){
	{
		if($i%2==0)
		{
		$bg = "#FFFFFF";
		}
		else
		{
		$bg = "#ebf0f0";
		}
?>
<tr align="center" style="font-size:13px" bgcolor="<?=$bg;?>">
    <td align="left"><a href="#" OnClick="selData('<?=$_GET["Line"];?>' ,'<?=$arr_product["type_id"];?>', '<?=$arr_product["type_name"];?>',
    																	 '<?=$arr_product["brand_id"];?>','<?=$arr_product["class_id"];?>' );">
	<?=$arr_product["type_name"];?>
	</a>
    </td>
    <td align="left"><?=$arr_product["type_name"];?></td>
</tr>
<?
}}
?>
</table>
		
<? 
mysql_close();
?>
</fieldset>