Help, please.

I do not know why this isn't working, but it would be very helpful if someone looked over it. <? $defaultpage = "http://lom.game-host.org/uploads/erik/"; If($page == NULL) { $page = "one"; } if($page == "one") { Echo "<html><head><title>Page One</title></head><body>It works!!<br><a href=\"" . $defaultpage . "index.php?page=two\">Nice...</a></body></html>"; } elseif($page == "two") { Echo "<html><head><title>Page Two</title></head><body>This is page " . $page . " -- <a href=\"" . $defaultpage . "index.php?page=\">;D</a></body></html>"; } elseif( ($page != "one") or ($page != "two") or ($page != NULL) ) { Echo "<html><head><title>Undefined!</title></head><body>page isn't defined correctly!</body></html>"; } if($page == "") { echo "<br><br><br><br><br><br><br><br><a href=" . $defaultpage . ">Main Page..</a>"; } ?> Thank you, Erik Johnson