Here’s a handy prototype based window class.

Features:

• Valid HTML/XHTML generated code
• Resizable windows
• Minimize/Maximize
• Modal dialogs
• Visual effects (Powered By Scriptaculous)
• Skinnable

Get it Online Here:

http://prototype-window.xilinus.com/ 

Name: ext Javascript Library
URL: http://extjs.com
Native Server Environment: None
Included Widgets: Grids, Layouts, Panels, Menus, Buttons, Form, Tree, ComboBox, Dialog, Tab Panel
Download Size: VariableOriginally developed as an add on library for the YUI toolkit, ext has emerged as a powerful and capable toolkit in its own right. Ext has a powerful focus on widgets and application construction similar to Dojo’s dijit system. It’s biggest strength, however, is the fact that it can float on top of just about any underlying AJAX library or stand on its own.

Some Highlights

• Powerful animation & effect tools
• Excellent editable grid widget
• Compatible with several major AJAX libraries
  • YUI
  • Scriptaculous / Prototype
  • jQuery
• Powerful Skinning System

Some Drawbacks

• A bit of a learning curve
• Demo’s & tutorials may not work due because they were coded for different underlying library
• Depends on underlying library for many key functions, some features don’t work well with all libraries.
• Focus on XML or JSON for some tasks & in documentation