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<?php
  $homepage = true;
  $loginpage = false;
  $orderpage = false;
  $user = array();
	$password = array();
	$username = "";
	$passkey  = "";
	$login= false;
		for  ($i = 0; $i<10; $i++)
		{

		array_push($user, "user".($i+1));
		array_push($password,"pass".($i+1));
		}

	if(isset($_GET['btnLogin']))
	{
		$username = $_GET["users"];
		$passkey = $_GET["password"];
		if(in_array($username,$user)&& in_array($passkey,$password))
		{
			$login = true;
		}
	}

?>

<html>
<head>
</head>
<body>
<div class = "header">
	<div id = "Home"><a href = "index.php">Home</a></div>
		<div id = "Login">
		<a href = "login.php"><div id = "test">Login</div></a> // when this clicked , i include the login.php, change the id testinnerhtml to Logout if successful, change loginpage into true
		</div>
	<div id = "Order"><a href = "Order.php">Order</a></div> // when this clicked, i include the order.php and hide the login.php
</div>
<?php
   	if($homepage == true)
   	{
	<?php include home.php ?>
   	}
	else if ($loginpage == true)
	{
	<?php include login.php ?>
	}
	else if ($orderpage == true)
	{
	<?php include order.php ?>
	}
?>
</body>
</html>