软件简介

A progressive enhancement to select multiple form elements. It provides a
simpler alternative with the following advantages:

• Easier for users to understand and interact with than regular select multiple form elements. Users know how to interact with it sans instruction.
• Doesn’t require user to Ctrl-Click or Shift-Click multiple elements. Instead users of your form can add or remove elements individually, without risk of losing those that have already been selected.
• Selected elements are always visible (within the confines of your interface) while unselected elements are always hidden (within a regular select ).
• Unlike regular select multiple option elements, those on asmSelect are optionally sortable with drag and drop (this part requires jQuery UI).
• asmSelect hides, maintains and updates the original select multiple so that no changes are required to existing code.
• If a user does not have javascript, then of course the regular select multiple form element is used instead.
• If the original select multiple form element is modified by some other jQuery or javascript code, the change will be reflected in the asmSelect as well.

Please see full information at http://code.google.com/p/jquery-asmselect/

Companion article at:
http://www.ryancramer.com/journal/entries/select_multiple/