mam problem s php + xml

No mam dva subory

ukaz.php

<?php

if ($_GET['page'] == "") {

	$_GET['page'] == "home";

}

$file=$_GET['page'].".xml";

if (!file_exists($file)) {

	$file="error404.xml";

}

$xml=simplexml_load_file($file);

$title = $xml->title;

$text = $xml->text;

function ukazclanok() {

	global $text;

	echo ($text);

}

function ukaztitle() {

	global $title;

	echo ($title);

}

?>

a error404.xml a home.xml (obidva subory su rovnake)

<? xml version="1.0" encoding="utf-8" standalone="yes" ?>

<page>

  <title>Vitajte</title>

  <text>WWWWWiiiiiiTTTTTTaaaaaJJJJJJ</text>

</page>

No a ked to spustim vypise mi to chybu(y):

Warning: error404.xml:1: error: xmlParsePI : no target name in C:\www\ukaz.php on line 9

Warning: in C:\www\ukaz.php on line 9

Warning: ^ in C:\www\ukaz.php on line 9

Warning: error404.xml:1: error: Start tag expected, '<' not found in C:\www\ukaz.php on line 9

Warning: in C:\www\ukaz.php on line 9

Warning: ^ in C:\www\ukaz.php on line 9

Preco mi to vypisujem ??
Mam zlu syntax suborov .xml alebo som sa niekde sekol v php kode??
PS: Riadok c. 9 je vyznaceny hrubo

Diiiiik,
taka mala banalna chyba aj ja som na nej pohorel :)