Nerde hata yaptım bakarmısınız

yine olmadı

<?php
include("db.php");
$id = $_GET["id"];
        $v = mysql_fetch_array(mysql_query("SELECT * FROM videolar WHERE id='$id'"));
        $resim= $v['resim'];
        $katid= $v['katid'];


    echo "<form action='igbitti.php' method='POST'>

<div align='center'>
    <table border='0' cellpadding='0' cellspacing='0' width='67%' height='40' bordercolorlight='#D6D6D6' id='table1'>
        <tr>
            <td height='19'>
            <p align='right'><font color='#FF00FF'><b>Resim Url Si</b></font></td>
            <td height='19' width='8' align='center'>:</td>
            <td height='19' width='339'>
            <input type='text' name='resim' size='54' value='$resim'></td>
        </tr>
        <tr>
            <td>
            <p align='right'><font color='#FF00FF'><b>Kategorisi</b></font></td>
            <td width='8' align='center'>:</td>
            <td width='339'><select name='katid'></form> ";

        include("db.php");
$kategoriler=mysql_query("SELECT * FROM kategoriler");
while($a=mysql_fetch_array($kategoriler)){
$id=$a['id'];
$katbaslik=$a['katbaslik'];
echo "<option value='$no'>$katbaslik</option>";
echo "
?>
</select></td>
        </tr>
    </table>
    <div align='center'>
        <table border='0' cellpadding='0' cellspacing='0' width='67%' height='24' bordercolorlight='#D6D6D6' id='table2'>
            <tr>
                <td>
                <p align='center'>
                <input type='hidden' name='id' value='$id'>
                <input type='submit' value='güncelle' name='guncelle'></td>
            </tr>
        </table>
    </div>
    </div>
</form>";
}
?>

2 php tagi acmissin ve en alttaki suslu parantezi koymayi unutmussun

php tagleri içerisinde php tagi açılmış ve kapatılmış. while döngüsü kapatılmamış. kapatan arkadaşlar da yanlış yerde kapatmış.
Şu şekilde çalışması gerekiyor.

<?php 
include("db.php"); 
$id = $_GET["id"]; 
        $v = mysql_fetch_array(mysql_query("SELECT * FROM videolar WHERE id='$id'")); 
        $resim= $v['resim']; 
        $katid= $v['katid']; 


    echo "<form action='igbitti.php' method='POST'> 

<div align='center'> 
    <table border='0' cellpadding='0' cellspacing='0' width='67%' height='40' bordercolorlight='#D6D6D6' id='table1'> 
        <tr> 
            <td height='19'> 
            <p align='right'><font color='#FF00FF'><b>Resim Url Si</b></font></td> 
            <td height='19' width='8' align='center'>:</td> 
            <td height='19' width='339'> 
            <input type='text' name='resim' size='54' value='$resim'></td> 
        </tr> 
        <tr> 
            <td> 
            <p align='right'><font color='#FF00FF'><b>Kategorisi</b></font></td> 
            <td width='8' align='center'>:</td> 
            <td width='339'><select name='katid'>"; 
$kategoriler=mysql_query("SELECT * FROM kategoriler"); 
while($a=mysql_fetch_array($kategoriler)){ 
$id=$a['id']; 
$katbaslik=$a['katbaslik']; 
echo "<option value='$no'>$katbaslik</option>"; 
}
echo "</select></td> 
        </tr> 
    </table> 
    <div align='center'> 
        <table border='0' cellpadding='0' cellspacing='0' width='67%' height='24' bordercolorlight='#D6D6D6' id='table2'> 
            <tr> 
                <td> 
                <p align='center'> 
                <input type='hidden' name='id' value='$id'> 
                <input type='submit' value='güncelle' name='guncelle'></td> 
            </tr> 
        </table> 
    </div> 
    </div> 
</form>"; 

?>