gb doet het niet, echt gek :s

<?php ob_start(); ?>

<table width="300" border="0" cellspacing="0" cellpadding="0">
  <tr>
    <td>
	<?php
	
	include('dbconnect.php');
	
	$naam = $_POST['name'];
	$email = $_POST['email'];
	$msg = $_POST['message'];
	$ws = $_POST['website'];
	$check_email = "/^([a-z0-9_-]+.)*?[a-z0-9_-]+@([a-z0-9-_]{2,}).[a-z0-9-_]*(.[a-z0-9- _]{2,})*$/i";
	$zend = $_POST['ok'];
	$teller;
	
	
	if($zend)
	{ 
		if(!preg_match($check_mail, $email))
		{
			echo "your emailadress seems to be invalid";
		}
		else if($naam == "")
		{
			echo "you MUST fill in a name! <br>";
		}
		else if($msg == "")
		{
			echo "You forgot to write a message";
		}
		else
		{
		
		$addquery = mysql_query("INSERT INTO gastenbook (`naam`, `bericht`, `email`, `website`, `post_date`)
								VALUES ('$naam','$msg','$email','$ws',NOW())");
								
			if($addquery)
			{
				echo "thanks for your message";
				echo "redirecting";
				echo "<a href=\"guestbook.php\" target=\"_self\">go right back to the guestbook<\a>";
				do{
					$i++;
				}while($i < 500);
			
					header("Location: guestbook.php");
			}	
		}
	}else
	{
	?>
		
		<form action="<?php $_SERVER['PHP_SELF']; ?>" method="post">
        <p>your name: <br>
          <input type="text" name="name" size="30">
          <br>
          <br>
          your email: <br>
          <input type="text" name="email" size="30">
          <br>
          <br>
          message:<br>
          <textarea name="message" cols="50" rows="5"></textarea>
          <br>
          <br>
          website: <strong><br>
          http://
            <input name="website" type="text" size="50">
          </strong></p>
		  <input type="submit" name"ok" value="send">
        </form>
	<?php
	}
	?>
	</td>
  </tr>
</table>

<?php ob_start(); ?>
 
<table width="300" border="0" cellspacing="0" cellpadding="0">
  <tr>
    <td>
	<?php
 
	include('dbconnect.php');
 
	$naam = $_POST['name'];
	$email = $_POST['email'];
	$msg = $_POST['message'];
	$ws = $_POST['website'];
	$check_email = "/^([a-z0-9_-]+.)*?[a-z0-9_-]+@([a-z0-9-_]{2,}).[a-z0-9-_]*(.[a-z0-9- _]{2,})*$/i";
	$zend = $_POST['ok'];
	$teller;
 
 
	if($zend)
	{ 
		if(!preg_match($check_mail, $email))
		{
			echo "your emailadress seems to be invalid";
		}
		else if($naam == "")
		{
			echo "you MUST fill in a name! <br>";
		}
		else if($msg == "")
		{
			echo "You forgot to write a message";
		}
		else
		{
 
		$addquery = mysql_query("INSERT INTO gastenbook (`naam`, `bericht`, `email`, `website`, `post_date`)
								VALUES ('$naam','$msg','$email','$ws',NOW())");
 
			if($addquery)
			{
				echo "thanks for your message";
				echo "redirecting";
				echo "<a href=\"guestbook.php\" target=\"_self\">go right back to the guestbook<\a>";
				do{
					$i++;
				}while($i < 500);
 
					header("Location: guestbook.php");
			}	
		}
	}else
	{
	?>
 
		<form action="<?php $_SERVER['PHP_SELF']; ?>" method="post">
        <p>your name: <br>
          <input type="text" name="name" size="30">
          <br>
          <br>
          your email: <br>
          <input type="text" name="email" size="30">
          <br>
          <br>
          message:<br>
          <textarea name="message" cols="50" rows="5"></textarea>
          <br>
          <br>
          website: <strong><br>
          http://
            <input name="website" type="text" size="50">
          </strong></p>
		  <input type="submit" name"ok" value="send">
        </form>
	<?php
	}
	?>
	</td>
  </tr>
</table>