To include active help links in your documentation, you must first declare the use of the active help JavaScript in the HEAD tag of your HTML:
<script language="JavaScript" src="../../org.eclipse.help/livehelp.js> </script>
The live help JavaScript is located in the org.eclipse.help plug-in. You can refer to it using the help system's cross plug-in referencing technique.
In this example, we have to navigate up two levels in the directory structure. The document with the active help link is located in the sub-directory guide underneath our plug-in directory. So we must navigate up one directory to reach our plug-in's root, and another level to reach the "virtual" location of all plug-ins. Then we can refer to the org.eclipse.help plug-in.
In the body of your documentation, you invoke the liveAction script.
<a href='javascript:liveAction( "org.eclipse.platform.doc.isv", "org.eclipse.platform.doc.isv.activeHelp.ActiveHelpOpenDialogAction", "")'>Click here for a Message.</a>
The parameters for liveAction are