6 calls to drupal_strtolower() in Drupal 6

book_export in modules/book/book.pages.inc

Menu callback; Generates various representation of a book page and its children.

search_index in modules/search/search.module

Update the full-text search index for a particular item.

search_simplify in modules/search/search.module

Simplifies a string according to indexing rules.

template_preprocess_page in includes/theme.inc

Process variables for page.tpl.php

theme_update_report in modules/update/update.report.inc

Theme project status report.

_color_rewrite_stylesheet in modules/color/color.module

Rewrite the stylesheet to match the colors in the palette.