รบกวนผู้รู้ช่วยดูโค้ดเพิ่ม กับแก้ไข ให้หน่อยนะครับ

<h4>จัดการข้อมูลสินค้า</h4>

<div align="center">

<div class="admin-box">
<p class="txt-center txt-bold">จัดการข้อมูลสินค้า</p>
<form class="form-horizontal" method="post" id="from_insert">

 <div class="form-group ">
    <label class="col-xs-3 control-label" for="pro_id">รหัสสินค้า</label>
        <div class="col-xs-1"></div>
    <div class="col-xs-7">
      <input type="text" id="pro_id" placeholder="รหัสสินค้า" name="pro_id" maxlength="10" class="form-control disable" readonly>
    </div>
    </div>
    
    
      <div class="form-group ">
    <label class="col-xs-3 control-label" for="cate_name">ชื่อประเภทสินค้า</label>
        <div class="col-xs-1"></div>
    <div class="col-xs-7">
      <select name="cate_name" id="cate_name" class="form-control">
    <?php
    $sql_select_producttype = select("select * from product_type"); 
    $count_select = 0;
    while($count_select < count($sql_select_producttype))
    {
    ?>
          
      <option value="<?php echo $sql_select_producttype[$count_select]['id_protype']?>"><?php echo $sql_select_producttype[$count_select]['name_type']?></option>
          
    <?php
        $count_select++;
    }
    ?>
      </select>
        
    </div>
    </div>
    
    
    
	
	    <div class="form-group ">
    <label class="col-xs-3 control-label" for="pro_name">ชื่อสินค้า</label>
        <div class="col-xs-1"></div>
    <div class="col-xs-7">
      <input type="text" id="pro_name" placeholder="ชื่อสินค้า" name="pro_name" maxlength="25" class="form-control" required>
    </div>
    </div>
    
    
    
    	    <div class="form-group ">
    	      <div class="col-xs-1"></div>
    <div class="col-xs-7"></div>
    </div>
    
     <hr/>
    <div class="txt-center">

		<div id="result"></div>
		
    <input type="submit" class="btn btn-success" value="บันทึก">
        <input type="reset" class="btn btn-danger" value="ล้างค่า">
    </div>
    </form>
	
</div>

	
	
</div>

<hr id="data-in-table"/>
<?php
$sql_select_product = select("select * from product p  inner join product_type c on p.id_protype = c.id_protype ");
$i = 0;
?>
<table class="table table-striped table-hover table-data no-warp">
  <thead>
    <tr>


        <th>#</th>
        <th>รหัส</th>
        <th>ประเภท</th>
        <th>ชื่อ</th>
        <th>เมนู</th>
    </tr>
  </thead>
  <tbody>
  <?php
  while($i < count($sql_select_product))
  {
  ?>
    <tr>
        <td><?php echo $i+1 ?></td>
        <td><?php echo $sql_select_product[$i]['id_product'] ?></td>
        <td><?php echo $sql_select_product[$i]['name_type'] ?></td>
        <td><?php echo $sql_select_product[$i]['name_pro'] ?></td>
        <td class="td-button">
          
          <a href="javascript:void(0)" 
		          onclick="update(
                 '<?php echo $sql_select_product[$i]['id_product']  ?>',
                 '<?php echo $sql_select_product[$i]['id_protype']  ?>',
                 '<?php echo $sql_select_product[$i]['name_pro']    ?>',
                 '<?php echo $sql_select_product[$i]['price']       ?>',
                 '<?php echo $sql_select_product[$i]['quantity']    ?>',
                 '<?php echo $sql_select_product[$i]['remain_num']  ?>',
                 '<?php echo $sql_select_product[$i]['weight']      ?>'
                 )">
          <input class="btn btn-xs btn-warning" type="button" value="แก้ไข-ดู"/></a>
          
          <a href="javascript:void(0)" 
           onClick="delete_data(
                    '<?php echo $sql_select_product[$i]['id_product'] ?>'
                    );">
          <input class="btn btn-xs btn-danger" type="button" value="ลบ"/></a>
          
        </td>
    </tr>
      
  <?php
  $i++;
  }
  ?>
  </tbody>
</table> 

    
    <div class="padding-buttom"></div>

</div>

<!--start ตั้งค่า javascript -->
<script type="text/javascript">
    
var url_data = "admin/product-code.php";    
function update(id,cate_name,pro_name,price,quantity,remin,weight)
{
	document.getElementById("pro_id").value = id;
	document.getElementById("cate_name").select = cate_name;
    document.getElementById("pro_name").value = pro_name;
    document.getElementById("pro_price").value = price;
    document.getElementById("pro_quantity").value = quantity;
    document.getElementById("pro_remin").value = remin;
    document.getElementById("pro_weight").value = weight;

    
	$('html, body').animate({
        scrollTop: $("#admin-box").offset().top
    }, 900);
}
	
function delete_data(id_data){	
	var answer = confirm ("ยืนยันการลบข้อมูล?")
	if (answer)
	{
		$.ajax({
			type: "GET",
			url: url_data,
			data: {id_action:id_data,action:'delete'},
			beforeSend: function()
			{
				$('#result').html('<img src="img/devoops_getdata.gif"/>');
			},
			success: function(data){
			$('#result').html(data);
			}
			});
	}
	else
	{
		return false;
	}
}

	
$(function()
{
	$("#from_insert").on('submit',(function(e) {
		e.preventDefault();	
	$.ajax({
		type: "POST",
		url: url_data,
		data: new FormData(this),
		contentType: false,
    	cache: false,
		processData:false,
		beforeSend: function()
		{
			$('#result').html('<img src="img/devoops_getdata.gif"/>');
		},
		success: function(data){
		$('#result').html(data);
		}
		});
	
	}));
})

$(document).ready(function(){
     
    $('.table-data').dataTable( {
        "lengthMenu": [[5, 10, 20, -1], [5, 10, 20, "All"]]
    } );
        

});
</script>
<!--end ตั้งค่า javascript -->