I think Willam provided a solution for this just the other day. See if the thread linked below helps any.
Helpful and Handy Links
the script does not seem to work in RH10. It works in RH9 however, yes this is just what I am looking for. Now if there is a solution that work in RH10 I will be happy for today : )
RH10 WebHelp is very different from earlier versions. Can you try the following?
var panevisible = new whMessage(SH_MSG_ISPANEVISIBLE, this, 1, "");
I will look into it too, but it may be a couple of days.
Message was edited by: Willam van Weelden - Script did not come trough correctly.
regrettably not, I tried the new script with FF13 and IE9. It would be
great if you can have a look when you find the time. No hurry to this.
thanks for providing this solution. When using Adobe's new script to
generate a CHM with a skin then this is the only way to get the
navigation pane when calling a topic via the CSH API.
Good to know that it works in the WebHelp CHM too.