This single class can create tooltips, dropdown menus, modal and
non-modal popup elements. Popups can be draggable and have auto-close
or click-to-close functionality. Scriptaculous effects can be applied
when opening and closing popups.
Also included are examples showing how to use DOM Popups with Rails to
create record popups and modal forms (AJAX and non-AJAX).
Documentation and downloads here:
Or go straight to the demo page: