language support for spellchecker

as you can read here http://tinymce.moxiecode.com/tinymce/docs/plugin_spellchecker.html
spellchecker needs an addition to tinyMCE.init
to check the spelling of another language than english

my hack for this looks like this:

  if (is_dir($tinymce_mod_path . '/tinymce/jscripts/tiny_mce/plugins/spellchecker/')) {
    $init['spellchecker_languages'] = '+Deutsch=de,Englisch=en';
  }

this was added to tinymce_config()

it would be nice if someone could sit down and write a patch which adds this functionality to tinymce.module...

Helpful drupal-functions: _locale_get_iso639_list() and/or _locale_prepare_iso_list()

Thanks...