ช่วยดู code ให้หน่อยครับ เกี่ยวกับ update ไม่รู้ผิดตรงไหน

  <div id="addteam">
    <form id="form3" name="form2" method="post" action="updateteam.php">
      <?PHP
  	$sql	= "select * from ball_team ORDER BY  `ball_team`.`team_point` AND `total_gd` ASC ";

	$query	= mysql_query($sql) or die("error=$sql");
	$num	= mysql_num_rows($query);



  ?>
          <p id="cname">Edit Team</p>
      <table width="622" border="1">
        <tr>
          <td width="15" rowspan="2">No</td>
          <td width="118" rowspan="2">Team</td>
          <td width="27" rowspan="2">Play</td>
          <td colspan="5">Home</td>
          <td colspan="9">Away</td>
        </tr>
        <tr>
          <td width="27">W</td>
          <td width="27">D</td>
          <td width="23">L</td>
          <td width="27">F</td>
          <td width="27">A</td>
          <td width="27">W</td>
          <td width="27">D</td>
          <td width="27">L</td>
          <td width="27">F</td>
          <td width="27">A</td>
          <td width="27">GD</td>
          <td width="28">Point</td>
          <td width="41">League</td>
          <td width="41">Update</td>
        </tr>
 <?PHP
        for($i=1;$i<=$num;$i++)
  {
  	$row	= mysql_fetch_array($query);
	?>

        <tr>
          <td><label>
            <input name="team_id" type="text" id="team_id" size="16" value="<?php  echo $row['team_id'];?>" />
          </label></td>
          <td><label>
            <input name="team" type="text" id="team" size="16" value="<?PHP echo $row[1];?>" />
          </label></td>
          <td><label>
            <input name="play_match" type="text" id="play_match" size="3" value="<?PHP echo $row[2];?>" />
          </label></td>
          <td><label>
            <input name="home_win" type="text" id="home_win" size="3" />
          </label></td>
          <td><label>
            <input name="home_draw" type="text" id="home_draw2" size="3" />
          </label></td>
          <td><input name="home_lose" type="text" id="home_lose" size="3" /></td>
          <td><label>
            <input name="home_goal" type="text" id="home_goal" size="3" />
          </label></td>
          <td><label>
            <input name="home_losegoal" type="text" id="home_losegoal" size="3" />
          </label></td>
          <td><label>
            <input name="away_win" type="text" id="away_win" size="3" />
          </label></td>
          <td><label>
            <input name="away_draw" type="text" id="away_draw" size="3" />
          </label></td>
          <td><label>
            <input name="away_lose" type="text" id="away_lose" size="3" />
          </label></td>
          <td><label>
            <input name="away_goal" type="text" id="away_goal" size="3" />
          </label></td>
          <td><label>
            <input name="away_losegoal" type="text" id="away_losegoal" size="3" />
          </label></td>
          <td><label>
            <input name="total_gd" type="text" id="total_gd" size="3" />
          </label></td>
          <td><label>
            <input name="team_point" type="text" id="team_point" size="3" />
          </label></td>
          <td><label>
            <input name="group_league" type="text" id="group_league" size="3" />
          </label></td>
          <td><label>
            <input type="checkbox" name="checkupdate[]" value="<?php echo $row["team_id"];?>" />
          </label></td>
        </tr>
        <?PHP } ?>
        <tr>
          <td colspan="17"><label>
            <input type="submit" name="Submit3" id="Submit3" value="Submit" />
          </label></td>
        </tr>
      </table>
    </form>
  </div>

<?PHP
	
		include("../connection/connect.php");
		include("../connection/function.php");
/*		$team				= htmlspecialchars($_POST['team']);
		$play_match			= htmlspecialchars($_POST['play_match']);
		$home_win			= htmlspecialchars($_POST['home_win']);
		$home_draw			= htmlspecialchars($_POST['home_draw']);
		$home_lose			= htmlspecialchars($_POST['home_lose']);
		$home_goal			= htmlspecialchars($_POST['home_goal']);
		$home_losegoal		= htmlspecialchars($_POST['home_losegoal']);
		$away_win			= htmlspecialchars($_POST['away_win']);
		$away_draw			= htmlspecialchars($_POST['away_draw']);
		$away_lose			= htmlspecialchars($_POST['away_lose']);
		$away_goal			= htmlspecialchars($_POST['away_goal']);
		$away_losegoal		= htmlspecialchars($_POST['away_losegoal']);
		$total_gd			= htmlspecialchars($_POST['total_gd']);
		$team_point			= htmlspecialchars($_POST['team_point']);
		$group_league		= htmlspecialchars($_POST['group_league']);

*/
	for($i=0;$i<count($_POST["checkupdate"]);$i++)
	{
		if($_POST["checkupdate"][$i] != "")
		{
			//echo "checkupdate $i = ".$_POST["checkupdate"][$i]."<br>";
			
		$team				= htmlspecialchars($_POST['team']);
		$play_match			= htmlspecialchars($_POST['play_match']);
		$home_win			= htmlspecialchars($_POST['home_win']);
		$home_draw			= htmlspecialchars($_POST['home_draw']);
		$home_lose			= htmlspecialchars($_POST['home_lose']);
		$home_goal			= htmlspecialchars($_POST['home_goal']);
		$home_losegoal		= htmlspecialchars($_POST['home_losegoal']);
		$away_win			= htmlspecialchars($_POST['away_win']);
		$away_draw			= htmlspecialchars($_POST['away_draw']);
		$away_lose			= htmlspecialchars($_POST['away_lose']);
		$away_goal			= htmlspecialchars($_POST['away_goal']);
		$away_losegoal		= htmlspecialchars($_POST['away_losegoal']);
		$total_gd			= htmlspecialchars($_POST['total_gd']);
		$team_point			= htmlspecialchars($_POST['team_point']);
		$group_league		= htmlspecialchars($_POST['group_league']);

	$sql 	= "select * from ball_team ";
	$sql 	.= "WHERE team_id = '".$_POST["checkupdate"][$i]."' ";
	$query	= mysql_query($sql) or die("error=$sql");
	$row	= mysql_fetch_array($query);

			
			$sql1 = 	"update  ball_team set 
						
							team		 	= '$team',
							play_match 	 	= '$play_match',
							home_win 	 	= '$home_win',
							home_draw 	 	= '$home_draw',
							home_lose 	 	= '$home_lose',
							home_goal 	 	= '$home_goal',
							home_losegoal 	= '$home_losegoal',
							away_win 		= '$away_win',
							away_draw 		= '$away_draw',
							away_lose 		= '$away_lose',
							away_goal 		= '$away_goal',
							away_losegoal 	= '$away_losegoal',
							total_gd 		= '$total_gd',
							team_point 		= '$team_point',
							group_league 	= '$group_league' ";

					$sql1 .= "WHERE team_id = '".$_POST["checkupdate"][$i]."' ";

					$query1 = mysql_query($sql1) or die("error=$sql1");
					
		}

	}

			echo "<script>alert('ok');window.location='index.php';</script>";		
?>