MDI Browser shareware allow you to reproduce exactly what applications (.exe) have been using for a long time, i.e. dropdown menu bars or menu icons (vertically or horizontally) with moveable/resizable child windows. All javascript, xml, xsl, css base (no plug-in). Data management friendly i.e. event trigger when 'X' icon is click, window can be always on top until event append, access to window properties like oWindow.save,...