frm  การส่งข้อมูล ค่ะ
<link rel="stylesheet" href="../css/autocomplete.css"  type="text/css"/>
<script type="text/javascript" src="../js/autocomplete.js"></script>
<form action="frm_po_p_add.php" method="post"enctype="multipart/form-data" name="Main1" id="Main1"  >
<?  for($r=0; $r <= 10; $r++){  ?>
<input name="productcode_name[]" id="productcode_name[]" type="text" class="bor_in"/>
<input name="productcode_id" id="productcode_id" type="hidden" />
<? } ?>
<input type="submit" name="Submit" value="Next"  />
</form>

<script type="text/javascript">
function make_autocom(autoObj,showObj){
    var mkAutoObj=autoObj;
    var mkSerValObj=showObj;
    new Autocomplete(mkAutoObj, function() {
        this.setValue = function(id) {        
            document.getElementById(mkSerValObj).value = id;
        }
        if ( this.isModified )
            this.setValue("");
        if ( this.value.length < 1 && this.isNotClick )
            return ;    
        return "frm_Seproduccode.php?q=" +encodeURIComponent(this.value);
    });    
}    
make_autocom("productcode_name" ,"productcode_id");
</script>


frm_Seproduccode.php

<?
header("Content-type:text/html; charset=UTF-8");        
header("Cache-Control: no-store, no-cache, must-revalidate");      
header("Cache-Control: post-check=0, pre-check=0", false);        
require("inc/conn.php");

$q = urldecode($_GET["q"]);
$sql ="select * from tb_productcode where productcode_name LIKE '%$q%'  ";
$results = mysql_query($sql);

while ($row = mysql_fetch_array($results)) {
    $id = $row["producecode_id"]; // ฟิลที่ต้องการส่งค่ากลับ
$name = $row["productcode_name"] ;
$name_no = $row["productcode_code"];
$name = str_replace("'", "'", $name);
$name_no = str_replace("'", "'", $name_no);
$display_name = preg_replace( " ( ". $q .")", " ", $name_no . " "  . $name .  "" );
echo "<li onselect=\"this.setText('$name').setValue('$id');\"> $display_name </li>";
}
?>

คือจะให้สามารถค้นหาได้ทั้ง  10    รายการที่วนลูปค่ะ  ช่วยดู code  ให้หน่อยค่ะ ว่าต้องแก้ไขตรงไหน ค่ะ