Fejl ved registrering af session?

Hej jeg får denne fejl ved registrering af mine session:

Warning: session_start(): Cannot send session cookie - headers already sent by (output started at c:\srv\apachegroup\apache\htdocs\manager\pages\login.php:11) in c:\srv\apachegroup\apache\htdocs\manager\pages\login.php on line 22

Warning: session_start(): Cannot send session cache limiter - headers already sent (output started at c:\srv\apachegroup\apache\htdocs\manager\pages\login.php:11) in c:\srv\apachegroup\apache\htdocs\manager\pages\login.php on line 22
Du er nu logget ind, og din session er gemt! Din session hedder:





Min kode er:

<html>
<head>
<title>Online Manager 2004</title>
<body>
<LINK href="style.css" rel=stylesheet>
<meta http-equiv=Page-Enter content=blendTrans(duration=0.5)>
<meta http-equiv=Page-Exit content=blendTrans(duration=0.5)>
</body>
</head>
<body topmargin="8" leftmargin="6">
<?
if(isset($_POST[email])) {
  include "sql.php"; //Connection til databasen

  $md5kode = md5($kodeord);

  $tjekhent = mysql_query("SELECT id,email,krypkodeord FROM users WHERE email='$email'") or die(mysql_error());
  $row = mysql_fetch_array($tjekhent);
  $num = mysql_num_rows($tjekhent);

  if($md5kode == $row[krypkodeord] AND $email == $row[email]) {
  session_start();
  $email_s = $row[email];
  session_register(email);
  print "Du er nu logget ind, og din session er gemt! Din session hedder: $email_S";
  exit;
  }
  else {
  print "<ul><li>Forkert email eller kodeord!</li></ul>";
  }
}
?>



<form method="post" action="login.php">
<table border="0" width="68%">
  <tr>
    <td width="5%">Email:</td>
    <td width="31%"><input type="text" name="email" size="20" style="font-family: Verdana; font-size: 9pt; border: 1px solid #000000"><br></td>
</tr>
<tr>
    <td width="5%">Kodeord:</td>
    <td width="31%"><input type="password" name="kodeord" size="20" style="font-family: Verdana; font-size: 9pt; border: 1px solid #000000"><br></td>
  </tr>
  <tr>
    <td width="5%"></td>
    <td width="31%"><input type="image" <img onMouseDown="this.filters.alpha.opacity=65" onMouseOver="this.filters.alpha.opacity=65" style="FILTER: alpha(opacity=100)" onMouseOut="this.filters.alpha.opacity=100" src=../gfx/submit_off.gif border=0 width="46" height="17"></td>
  </tr>
</table>
</form>
</body>
</html>



Og jeg er helt på bar bund, så jeg håber der er nogen der kan hjælpe mig !-)