6 calls to form_clean_id()

drupal_prepare_form in drupal-6.x/includes/form.inc
Prepares a structured form array by adding required elements, executing any hook_form_alter functions, and optionally inserting a validation token to prevent tampering.
drupal_process_form in drupal-6.x/includes/form.inc
This function is the heart of form API. The form gets built, validated and in appropriate cases, submitted.
expand_radios in drupal-6.x/includes/form.inc
Roll out a single radios element to a list of radios, using the options array as index.
filter_form in drupal-6.x/modules/filter/filter.module
Generates a selector for choosing a format in a form.
template_preprocess_page in drupal-6.x/includes/theme.inc
Process variables for page.tpl.php
_form_builder_handle_input_element in drupal-6.x/includes/form.inc
Populate the #value and #name properties of input elements so they can be processed and rendered. Also, execute any #process handlers attached to a specific element.