javascript คำนวณ array จำนวนรวม sum ทั้งหมด ไม่แสดง..................................

<script language="javascript">


	function OpenPopup(intLine)
	{
		window.open('pop_type.php?Line='+intLine,'myPopup','width=650,height=1000,toolbar=0, menubar=0,location=0,status=1,scrollbars=1,resizable=1,left=0,top=0');
	}	
	function OpenPopup2(intLine)
	{
		window.open('pop_color.php?Line='+intLine,'myPopup','width=650,height=600,toolbar=0, menubar=0,location=0,status=1,scrollbars=1,resizable=1,left=0,top=0');
	}
	
	function OpenPop(intLine)
	{
		window.open('pop_branch.php?Line='+intLine,'myPopup','width=650,height=1000,toolbar=0, menubar=0,location=0,status=1,scrollbars=1,resizable=1,left=0,top=0');
	}
	
	function OpenUp(intLine)
	{
		window.open('pop_utype.php?Line='+intLine,'myPopup','width=650,height=200,toolbar=0, menubar=0,location=0,status=1,scrollbars=1,resizable=1,left=0,top=0');
	}
	
	function textsum(rowId){
		var amount = document.getElementById('amount'+rowId).value;
		var price = document.getElementById('price'+rowId).value;
		var total = amount*price;
		document.getElementById('total'+rowId).value = total;
	}  
	
	function allsum(rowId){
		var total = document.getElementById('total'+rowId).value;
		var all_total = total+total;
		document.getElementById('all_total'+rowId).value = total;
	}  

	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 No ***//
		newCell = newRow.insertCell(0);
		newCell.id = newCell.uniqueID;
		newCell.setAttribute("className", "css-name");
		newCell.innerHTML = "<center>"+intLine+"</center>";

		//*** Column type_id ***//
		newCell = newRow.insertCell(1);
		newCell.id = newCell.uniqueID;
		newCell.setAttribute("className", "css-name");
		//newCell.setAttribute("OnClick", "OpenPopup('"+intLine+"')");
		newCell.innerHTML = "<center><INPUT TYPE=\"TEXT\"  NAME=\"type_id[]\" SIZE=\"5\" ID=\"type_id"+intLine+"\" OnClick=\"OpenPopup('"+intLine+"')\"></center>";	

		//*** Column type_name ***//
		newCell = newRow.insertCell(2);
		newCell.id = newCell.uniqueID;
		newCell.setAttribute("className", "css-name");
		newCell.innerHTML = "<center><INPUT TYPE=\"TEXT\"  NAME=\"type_name[]\" SIZE=\"15\" ID=\"type_name"+intLine+"\" ></center>";

		//*** Column color_name ***//
		newCell = newRow.insertCell(3);
		newCell.id = newCell.uniqueID;
		newCell.setAttribute("className", "css-name");
		//newCell.setAttribute("OnClick", "OpenPopup('"+intLine+"')");
		newCell.innerHTML = "<center><INPUT TYPE=\"TEXT\" NAME=\"color_name[]\"  SIZE=\"8\" ID=\"color_name"+intLine+"\"  OnClick=\"OpenPopup2('"+intLine+"')\"></center>";	
		
		//*** Column unit ***//
		newCell = newRow.insertCell(4);
		newCell.id = newCell.uniqueID;
		newCell.setAttribute("className", "css-name");
		newCell.innerHTML = "<center><INPUT TYPE=\"TEXT\"  NAME=\"unit[]\"  SIZE=\"5\" ID=\"unit"+intLine+"\" VALUE=\"คัน\"></center>"
	
			//*** Column amount ***//
		newCell = newRow.insertCell(5);
		newCell.id = newCell.uniqueID;
		newCell.setAttribute("className", "css-name");
		newCell.innerHTML = "<center><INPUT TYPE=\"TEXT\" NAME=\"amount[]\" SIZE=\"5\" ID=\"amount"+intLine+"\"  onfocus=\"textsum("+intLine+");\" onblur=\"textsum("+intLine+");\" onkeyup=\"textsum("+intLine+");\"></center>";	

			//*** Column price ***//
		newCell = newRow.insertCell(6);
		newCell.id = newCell.uniqueID;
		newCell.setAttribute("className", "css-name");
		newCell.innerHTML = "<center><INPUT TYPE=\"TEXT\" NAME=\"price[]\" SIZE=\"15\"  ID=\"price"+intLine+"\"  onfocus=\"textsum("+intLine+");\" onblur=\"textsum("+intLine+");\" onkeyup=\"textsum("+intLine+");\" ></center>";	
		document.frmMain.hdnMaxLine.value = intLine;
		
			//*** Column total ***//
		newCell = newRow.insertCell(7);
		newCell.id = newCell.uniqueID;
		newCell.setAttribute("className", "css-name");
		newCell.innerHTML = "<center><INPUT TYPE=\"TEXT\" NAME=\"total[]\" SIZE=\"15\"  ID=\"total"+intLine+"\"  onfocus=\"textsum("+intLine+");\" onblur=\"textsum("+intLine+");\" onkeyup=\"textsum("+intLine+");\" ></center>";	
		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>
</style>

<table width="521" border="1" id="tbExp" cellpadding="0" cellspacing="0" style="font-size:13px; ">
  <tr height="40" align="center" bgcolor="#FFFFCC">
    <th width="42"><div align="center">ลำดับ </div></th>
    <th width="34"><div align="center">รหัส </div></th>
    <th width="76"><div align="center">รายละเอียด </div></th>
    <th width="27"><div align="center">สี </div></th>
    <th width="43"><div align="center">หน่วย </div></th>
    <th width="40"><div align="center">จำนวน</div></th>
    <th width="122"><div align="center">ราคา:หน่วย (บาท)</div></th>
	<th width="119"><div align="center">รวมเป็นเงิน (บาท)</div></th>
  </tr>
</table> 
<table width="500" border="1" id="tbExp" cellpadding="0" cellspacing="0" style="font-size:13px; ">
  <tr height="40" align="center" bgcolor="#FFFFCC">
	<td width="119"><div align="center">รวมเป็นเงิน (บาท)</div></td>
    <td><input type="text" id="SUMM" name="SUMM"  onkeyup="allsum();"/></td>
  </tr> 
</table>