';
	mysql_query($sql);
}
function showActionLog(){
	$qry = mysql_query('Select g.time, u.nickname, g.ip, g.message from gm_actions as g inner join user as u on g.userid = u.id order by time desc LIMIT 100');
	while($row = mysql_fetch_assoc($qry)){
		echo $row['time'].' '.$row['nickname'].' ('.$row['ip'].'): '.$row['message'].'
'."\n";
	}
	echo 'Zum Hauptmenu';
}
// Returns bool
function checkLoginData($userid, $password){
	if(checkSessionPasswort($userid, $password)){
		return true;
	} else{
		logout();
		return false;
	}
}
function loginUser($user,$pass){
	if(checkLoginPassword($user,$pass)){
		$test = 'SELECT * from user where nickname = \''.$user.'\'';
		$qry = mysql_query($test);
		$result = mysql_fetch_assoc($qry);		
		$usergroups = getUserGroups($user);
				
		if(isUserInGroup($usergroups, ADMIN)) {
			$_SESSION['user'] = $result['id'];
			$_SESSION['username'] = $result['nickname'];
			$_SESSION['password'] = $result['passwort'];
			$_SESSION['usergroups'] = $usergroups;
			echo 'Zum Hauptmenu';		
			return true;
		}
		return false;
	}
	echo displayHistoryBackLink();
	return false;
}
function displayLogin(){
	?>
	
| Leider ist diese Funktion noch nicht implementiert! | 
| Zum Hauptmenu'; ?> |