ทำไงให้มันติ๊กข้าม ช่องได้ ของในเอกสารแต่ละอันแล้วข้อมูลของเลขดึงมาใส่ถูกช่องครับผม

<script language="javascript">
function selValue()
{
	var val = '';
	for(i=1;i<=frmPopup.hdnLine.value;i++)
	{
		if(eval("frmPopup.Chk"+i+".checked")==true)
		{
			val = val + eval("frmPopup.Chk"+i+".value") + ',';
		}
	}
	window.opener.document.getElementById("txtSel").value = val;
	
	window.close();
}



</script>

<form id="frmPopup" action="" method="post" name="frmPopup">
<?
$objConnect = mysql_connect("localhost","root","1234") or die("Error Connect to Database");
$objDB = mysql_select_db("sup");
$strSQL = "SELECT * FROM plpipo WHERE supid = '".$supid."' AND pays NOT LIKE '%1%'";
$objQuery = mysql_query($strSQL) or die ("Error Query [".$strSQL."]");
?>
<table width="318" border="1">
  <tr>
    <th width="87"> <div align="center">po_id </div></th>
    <th width="152"> <div align="center">total </div></th>
    
	<th width="57"> <div align="center">Select </div></th>
	<th width="57"> <div align="center">amount </div></th>
  </tr>
<?
$i = 0;
$Chk="";
while($objResult = mysql_fetch_array($objQuery))
{
$i++;
?>
  <tr>
    <td><div align="center"><?php echo $objResult["po_id"];?></div></td>
    <td align="right"><?php echo number_format($objResult["net"],1);?></td>
	
    <td align="center"><input name="Chk<?php echo $i;?>" class="Chk<?php echo $i;?>"	id="Chk<?php echo $i;?>" type="checkbox" value="<?php echo $objResult["net"];?>&<?php echo $objResult['po_id'];?>" onclick="tick(frmPopup , this);onToggle();" ></td>
	 <td align="center"><input name="ji<?php echo $i;?>" class="ji<?php echo $i;?>"	id="ji<?php echo $i;?>" type="text" value="0" onclick="sum12();" ></td>
	
  </tr>
<?
}
?>
</table>

<input type="text" id="sum" name="sum" value="0">
<input type="text" id="sum1" name="sum1" value="0">
 <input name="hdnLine" id="hdnLine" type="hidden" value="<?php echo $i;?>">
  <br>
  <input name="btnSelect" type="button" value="Select" onClick="JavaScript:selValue();JavaScript:tick( frmPopup , chk );sum12();">
</form>