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		if (isset($_POST['registerBtn'])){
			$username = preg_replace("/[^A-Za-z0-9-]/","", $_POST['username']);
			$password = $_POST['password'];
			$rpassword = $_POST['rpassword'];
			$email = $_POST['email'];
			$errors = array();
			$checkUsername0 = $odb -> prepare("SELECT * FROM `users` WHERE `username`='".$username."'");
			$checkUsername0 -> execute();
			$countUsername0 = $checkUsername0 -> rowCount();
			if ($countUsername0 != 0)
			{
				$errors[] = 'Username is already taken';
			}
			if (empty($username) || empty($password) || empty($rpassword) || empty($email))
			{
				$errors[] = 'Please fill in all fields';
			}
			if ($password != $rpassword)
			{
				$errors[] = 'Passwords do not match';
			}
			if (empty($errors))
			{
				$insertUser = $odb -> prepare("INSERT INTO `users` VALUES(NULL, :username, :password, :email, 0, 0, 0, 0, '', 0)");
				$insertUser -> execute(array(':username' => $username, ':password' => SHA1($password), ':email' => $email));
				echo '<div class="message" id="message"><p><strong>SUCCESS: </strong>User has been registered.  Redirecting....</p></div><meta http-equiv="refresh" content="3;url=login.php">';
			}
			else
			{
				echo '<div class="error" id="message"><p><strong>ERROR:</strong><br />';
				foreach($errors as $error)
				{
					echo '-'.$error.'<br />';
				}
				echo '</div>';
			}
	}