I'm curious whether anyone has tried to customise the way the Index behaves in the WebHelp output. I'm not really happy with the fact that keywords appear as links even when they don't have topics asociated with them. For example, I have a keyword called "Installing" which is really just a heading for the subkeywords which link to the topics for installing various components. Ideally I would like to do something like what the online help for RoboHelp does (have a + icon to expand top-level keywords when they include subkeywords) but I would settle for simply removing the link behaviour from the top-level keyword. Has anyone found a way to do this?
Modifying the Index behaviour will require you to change whihost.js. I can think of adding an image to Index entries, changing the highligt function, but creating expanding index items will probably require you to completely rewrite whihost.js.
Have you considered putting several help topics directly under that main keyword, in the help project?
That way, clicking the keyword would give you a popup with the Titles of all those help topics.