salahh logic?

<?php
    include "conn.php";
    $kd_kelas=$_GET['kd_kelas'];
    $query=mysql_fetch_array(mysql_query("select count(*) tot from kelas where kd_kelas='$kd_kelas'"));
?>
<div class="post">
    <h2 class="title"><a href="#">ABSENSI KELAS <?php echo $query['nama_kelas'];?></a></h2>
    <p class="meta"><em>Aplikasi Absensi Multimedia<a href="#">SMK Wijaya Plus 2</a></em></p>
    <div class="entry">
        <p>
        <form action="?page=proses" method="post" name="postform">
        <input type="hidden" value="<?php echo $query['kd_kelas'];?>" name="kd_kelas"/>
<h3>total siswa di kelas :<?php echo $query['tot'];?></h3>
<?php
 $query=mysql_query("select * from siswa where kd_kelas='$kd_kelas'") or die(mysql_error());
?>
        <table class="datatable">
        <tr>
            <td width="24%" align="left" colspan="6">Tanggal : <input type="text" name="tanggal"  value="<?php
if(empty($_POST['tgl'])){
    echo $tanggal;
}else{
    echo "$_POST[tgl]$_GET[tgl]";
}?>" size="11">
<a
    href="javascript:void(0)"
    onClick="if(self.gfPop)gfPop.fPopCalendar(document.postform.tanggal);return false;" >
<img name="popcal" align="absmiddle" src="calender/calbtn.gif" width="34" height="29" border="0" alt="">
</a>
</td>
        </tr>
        <tr>
            <th>No</th>
            <th>Nama</th>
            <th>Hadir (H)</th>
            <th>Sakit (S)</th>
            <th>Ijin (I)</th>
            <th>Alfa (A)</th>
        </tr>
        <?php
        //penting nech buat kasih nilai awal radio bottom
        $no=0; //dipake buat nomor

        while($row=mysql_fetch_array($query)){
        ?>
        <tr>
            <td><?php echo ++$no;?></td>
            <td><?php echo $row['nama'];?></td>
            <td align="center">
<?php
/*****
 saya perbaiki logic disini
*****/
?>

              <input type="radio" name="hadir[<?php echo $row['kd_siswa'];?>]" value=1 />
            </td>

      <td align="center">

                <input type="radio" name='sakit[<?php echo $row['kd_siswa'];?>]' value=1 />


            </td>
            <td align="center">

                <input type="radio" name='ijin[<?php echo $row['kd_siswa'];?>]' value=1 />

            </td>
            <td align="center">

                <input type="radio" name='alpa[<?php echo $row['kd_siswa'];?>]' />

            </td>
        </tr>
        <?php
        }

        echo "
            <tr>
                <td></td>
                <td></td>
                <td align=center>
                <input type='button' name='pilih' onclick='for (i=0;i<$no;i++){document.getElementById(i).checked=true;}' value='Check All'>
                </td>
                <td align=center>
                <input type='button' name='pilih' onclick='for (i=0;i<$no;i++){document.getElementById(i).checked=false;}' value='Uncheck All'>
                </td>
                <td></td>
                <td></td>
            </tr>";
        ?>
        </table>
        <br />
        <input type="checkbox" name="selesai" value="yes" />Tandai Kelas Selesai
        <br /><br />
        <input type="submit" value="Submit" />
        </form>
        </p>
  </div>
</div>

<iframe width=174 height=189 name="gToday:normal:calender/agenda.js" id="gToday:normal:calender/agenda.js" src="calender/ipopeng.htm" scrolling="no" frameborder="0" style="visibility:visible; z-index:999; position:absolute; top:-500px; left:-500px;">
</iframe>