PEGAR URL PHP

PAGINA INDEX.PHP

session_start();
setlocale(LC_CTYPE,"pt_BR");
header("Content-Type: text/html; charset=ISO-8859-1",true);
?>
< html >
< fraimeset rows="100%,*">
if (! isset($_SESSION['url'])){
< freime src="login.php" frameborder="0" name="conteudo" scrolling="Auto" marginwidth="0" marginheight="0">
} else{
< freime src=" =$_SESSION['url']" frameborder="0" name="conteudo" scrolling="Auto" marginwidth="0" marginheight="0">
}
< / frameset >
< noframes >
< / html >


COLOCAR NA PAGINA QUE CONTEM O TOPO/MENU.
session_start();
$url = $_SERVER["REQUEST_URI"];
$_SESSION['url']= $url;