JavaScript
Replaced by: http://drupal.org/project/issues/3060/term/232
Here is a list of current JavaScript subsystem improvement patches. If you have access to multiple browsers/platforms you can be especially helpful in reviewing these patches. See the JavaScript section of the Drupal Core Test Suite for a list of what to test.
jQuery improvements
#315035: Add jQuery UI elements to core
JavaScript system improvements
#352951: Make JS Preprocessing Pluggable
#315100: Allow to add JS/CSS libraries (sets of files, settings, and dependent libraries)
#328357: Allow module info files to add CSS with styles[]
#304873: Add filter_xss() functionality to drupal.js
#360128: Security fix for simplified AHAH callbacks
#376107: Ajax support / Auto-save support for tabledrag.js
#374646: Popbox (Popups Lite): Adding Modal Dialogs to Confirmations
User-facing JavaScript-enabled features
More issues:
JavaScript component
jQuery tag