Position Type selector has incorrect values

The selector for the Position Type has incorrect values:

  $type_options = array(
    'absolute' => t('Absolute'),
    'relative' => t('Fixed'),
    'static' => t('Relative'),
    'relative' => t('Static'),
  );

There are two values for 'relative', 'static' is mixed up with one of the 'relative' values, and there's no value for 'fixed'.