$_SESSION werkt niet ?? (Opgelost)

<?php
  ob_start();
  if($_SERVER['REQUEST_METHOD'] == 'POST'){ 
    if(!isset($_SESSION['admin_logged'])){
	  $uName = $_POST['loginname'];
	  $uPass = $_POST['loginpass'];
	  $login_sql = "SELECT loginname FROM adminlist WHERE loginname = '$uName' AND password = '$uPass'";
	  $login_res = mysql_query($login_sql);
	  if($login_res){
	    $uCount = "SELECT alevel FROM adminlist WHERE loginname = '$uName' AND password = '$uPass'";
		$uResult = mysql_query($uCount);
		$uLevel = mysql_num_rows($uResult);
		if($uLevel != 0){
		  $_SESSION['admin_logged'] = true;
		  $_SESSION['admin_name'] = $uName;
		  $_SESSION['admin_level'] = $uLevel;
		  echo "Ingelogd... blaat";
		}
		else{
		  echo "Je bent level 0 admin, oftewel NIET admin";
		}
	  }
	  else{
	    echo "Stomme MYSQL error...";
	  }
	}
	else{
	  header('location: admPanel.php');
	}
  }
  else{
    header('location: login.php');
  }
  ob_end_flush();
?>

<?php
  ob_start();
  if($_SERVER['REQUEST_METHOD'] == 'POST'){ 
    if(!isset($_SESSION['admin_logged'])){
	  $uName = $_POST['loginname'];
	  $uPass = $_POST['loginpass'];
	  $login_sql = "SELECT loginname FROM adminlist WHERE loginname = '$uName' AND password = '$uPass'";
	  $login_res = mysql_query($login_sql);
	  if($login_res){
	    $uCount = "SELECT alevel FROM adminlist WHERE loginname = '$uName' AND password = '$uPass'";
		$uResult = mysql_query($uCount);
		$uLevel = mysql_num_rows($uResult);
		if($uLevel != 0){
		  $_SESSION['admin_logged'] = true;
		  $_SESSION['admin_name'] = $uName;
		  $_SESSION['admin_level'] = $uLevel;
		  echo "Ingelogd... blaat";
		}
		else{
		  echo "Je bent level 0 admin, oftewel NIET admin";
		}
	  }
	  else{
	    echo "Stomme MYSQL error...";
	  }
	}
	else{
	  header('location: admPanel.php');
	}
  }
  else{
    header('location: login.php');
  }
  ob_end_flush();
?>

<?php
  session_start();
  ob_start();
  if(!isset($_GET['a'])) header("location: ?a=0");
  if(!isset($_SESSION['wachted'])){
    echo "This is your first time here!<br />Just enjoy<br /><br />";
	$_SESSION['wachted'] = true;
	$_SESSION['views'] = 1;
	echo "<u>Views: <b>".$_SESSION['views']."</b></u>";
	
  }
  else{
    $_SESSION['views'] = $_SESSION['views'] + 1;
    echo "Welcome back!<br /><br />";
	echo "<u>Views: <b>".$_SESSION['views']."</b></u><br /><br />";
	echo "Click <a href='?a=1'>here</a> to destroy the session";
  }
  
  if($_GET['a'] == '1'){
    unset($_SESSION['views']);
	unset($_SESSION['wachted']);
	session_destroy();
	header("location: ?a=0");
  }
  ob_end_flush();
?>

<?php
  session_start();
  ob_start();
  if(!isset($_GET['a'])) header("location: ?a=0");
  if(!isset($_SESSION['wachted'])){
    echo "This is your first time here!<br />Just enjoy<br /><br />";
	$_SESSION['wachted'] = true;
	$_SESSION['views'] = 1;
	echo "<u>Views: <b>".$_SESSION['views']."</b></u>";
 
  }
  else{
    $_SESSION['views'] = $_SESSION['views'] + 1;
    echo "Welcome back!<br /><br />";
	echo "<u>Views: <b>".$_SESSION['views']."</b></u><br /><br />";
	echo "Click <a href='?a=1'>here</a> to destroy the session";
  }
 
  if($_GET['a'] == '1'){
    unset($_SESSION['views']);
	unset($_SESSION['wachted']);
	session_destroy();
	header("location: ?a=0");
  }
  ob_end_flush();
?>