6 uses of LANGUAGE_RTL in Drupal 6

drupal_add_css in includes/common.inc

Adds a CSS file to the stylesheet queue.

locale_languages_overview_form in includes/locale.inc

User interface for the language overview screen.

phptemplate_get_ie_styles in themes/garland/template.php

Generates IE CSS links for LTR and RTL languages.

template_preprocess_book_export_html in modules/book/book.module

Process variables for book-export-html.tpl.php.

_color_page_alter in modules/color/color.module

Callback for the theme to alter the resources used.

_locale_get_predefined_list in includes/locale.inc

Some of the common languages with their English and native names