EllisLab/CodeIgniter — pull request #1519 by mwhitneysdsu (2012-06-22 19:04:53+00:00)
Title: Added optional fourth parameter to timezone_menu

in order to set one or more attributes on the generated select tag.
This allows passing attributes needed for Section 508 compliance § 1194.22(n), such as an id.
http://access-board.gov/sec508/guide/1194.22.htm#(n)
http://www.w3.org/TR/WCAG10-HTML-TECHS/#forms-labels