ช่วยหน่อยครับเกี่ยวกับการ Loop Javascript ให้ ID เพิ่มทีละ 1 ไปเรื่อยเมื่อเรากดปุ่ม

<?
$sqlprice = "select max(price_id) as price_id from tb_price";
$resultprice= mysql_query($sqlprice);
$recordprice = mysql_fetch_array($resultprice);
$max_idprice = $recordprice['price_id'];

?>

<script language="javascript">

	function CreateSelectOption(ele)
	{
		var objSelect = document.getElementById(ele);
		var Item = new Option("", ""); 
		objSelect.options[objSelect.length] = Item;
		<?
		while($recordtn  = mysql_fetch_array($resultn))
		{
		?>
		var Item = new Option("<?=$recordtn["length_th"];?>", "<?=$recordtn["length_id"];?>"); 
		objSelect.options[objSelect.length] = Item;
		<?
		}
		?>
	}

	function CreateNewRow()
	{
		var intLine = parseInt(document.frmMain.hdnMaxLine.value);
		intLine++;
			
		var theTable = document.getElementById("tbExp");
		var newRow = theTable.insertRow(theTable.rows.length)
		newRow.id = newRow.uniqueID

		var newCell
		
			//*** Column 1 ***//
		newCell = newRow.insertCell(0);
		newCell.id = newCell.uniqueID;
		newCell.setAttribute("className", "css-name");
		newCell.innerHTML = "ผมต้องการที่จะใส่ Loop ID ตรงนี้ครับ";

		
		//*** Column 1 ***//
		newCell = newRow.insertCell(1);
		newCell.id = newCell.uniqueID;
		newCell.setAttribute("className", "css-name");
		newCell.innerHTML = "<SELECT NAME=\"length_id"+intLine+"\" ID=\"length_id"+intLine+"\"></SELECT>";

		//*** Column 2 ***//
		newCell = newRow.insertCell(2);
		newCell.id = newCell.uniqueID;
		newCell.setAttribute("className", "css-name");
		newCell.innerHTML = "<INPUT TYPE=\"TEXT\" SIZE=\"5\" NAME=\"price"+intLine+"\" ID=\"price"+intLine+"\"  VALUE=\"\">";
		
		

		//*** Create Option ***//
		CreateSelectOption("length_id"+intLine)
		
		document.frmMain.hdnMaxLine.value = intLine;
	}
	
	function RemoveRow()
	{
		intLine = parseInt(document.frmMain.hdnMaxLine.value);
		if(parseInt(intLine) > 0)
		{
				theTable = document.getElementById("tbExp");				
				theTableBody = theTable.tBodies[0];
				theTableBody.deleteRow(intLine);
				intLine--;
				document.frmMain.hdnMaxLine.value = intLine;
		}	
	}	
</script>