Pb de mofication sur la BDD

<?

mysql_connect("***", "***", "***"); // Connexion à MySQL

mysql_select_db("***"); // Sélection de la base mateo21

$sql = 'UPDATE team SET nom="'.$_POST['nom'].'", age= "'.$_POST['age'].'", localisation="'.$_POST['localisation'].'", anniversaire="'.$_POST['anniversaire'].'", mail="'.$_POST['mail'].'", msn="'.$_POST['msn'].'", fonction="'.$_POST['fonction'].'", html="'.$_POST['html'].'", php="'.$_POST['php'].'", css="'.$_POST['css'].'", photoshop="'.$_POST['photoshop'].'", flash="'.$_POST['flash'].'" WHERE ID="'.$_GET['id'].'"'; 

mysql_query($sql) or die (mysql_error()); 

header('location: index.php');

mysql_close();

?>