ต้องการเก็บค่า checkbox ทั้งที่ถูกเช็ค และไม่ถูกเช็คค่ะ !!!ช่วยดูให้ทีนะคะ

function ClickCheckAll(vol)
	
	{
		var chkk=0;
		var i=1;
		for(i=1;i<=document.form1.hdnCount.value;i++)
		{
			if(vol.checked == 1)
			{
				eval("document.form1.chkDel"+i+".checked=true");
			//	eval("document.getElementById('tr"+i+"')");
			
				
			}
			else
			{
				eval("document.form1.chkDel"+i+".checked=false");
				//eval("document.getElementById('tr"+i+"')");
				
			}
		}
	}

</script> 

<form action="chk_add_pro.php?id_bb=<?=$objResult5["id_branch"];?>" method="post" enctype="multipart/form-data" name="form1" id="form1" nctype="multipart/form-data"  onsubmit="return onDelete();">
<td><div align="right">สาขาที่เข้าร่วม</div></td>
          <td>&nbsp;</td>
          <td><? $strSQL = "SELECT id_branch,name_branch FROM branchs WHERE shop_id = '".$_SESSION['shop_id']."' and name_branch Is Not NULL";
$objQuery = mysql_query($strSQL) or die ("Error Query [".$strSQL."]");
?>
            <table width="184">
  <tr>
    <th width="174"> 
      <div align="left">
        <input name="CheckAll" type="checkbox" id="CheckAll" value="1" onClick="ClickCheckAll(this);">
        เลือกทั้งหมด      </div></th>
  </tr>
<?
$i = 0;
while($objResult = mysql_fetch_array($objQuery))
{
$i++;
?>
  <tr id="tr<?=$i;?>" OnClick="ClickMakeColorByTr(document.form1.chkDel<?=$i;?>,'tr<?=$i;?>');">
    <td align="center"><input type="checkbox" name="chkDel[]" id="chkDel<?=$i;?>" value="1" onClick="ClickMakeColorByTr(document.form1.chkDel<?=$i;?>,'tr<?=$i;?>');" />
      <?=$objResult["name_branch"];?></td>
  </tr>
<?
}
?>
</table>

<input type="hidden" name="hdnCount" value="<?=$i;?>">
            <br /></td>
 <input type="submit" name="button" id="button" value="บันทึก" />
              
               <input type="submit" name="button2" id="button2" value="Reset" />
</form>

<?


for($i=0;$i<$_POST["chkDel"];$i++)
	{	
			if($_POST['chkDel'][$i] !="")
			{
			$strSQL3 = "INSERT INTO branchs_join (id_pro,id_branch,chk) VALUES ('$last_id','".$_POST["chkDel"][$i]."','1')";
			$objQuery3 = mysql_query($strSQL3) or die ("Error Query [".$strSQL3."]");	
			}
			else
			{
			$strSQL3 = "INSERT INTO branchs_join (id_pro,id_branch,chk) VALUES ('$last_id','".$_POST["chkDel"][$i]."','0')";
			$objQuery3 = mysql_query($strSQL3) or die ("Error Query [".$strSQL3."]");
			}
}
?>