Functionality can be added to help topics using the lightweight component facility. Lightweight components are similar to Java applets, but are lighter-weight and load and execute more quickly.
The first release of the JavaHelp system includes a lightweight component that implement popup windows and secondary windows. For more information about popup windows and secondary windows see Using Popup and Secondary Windows.
Lightweight components can also be created by Java language
developers to add functionality such as animation and
multimedia to help topics. The JavaTM 2 Platform
includes high quality audio and a video viewer that
supports the common formats. For more information see Creating Lightweight
Components.