I assume you're getting the header link to respond at all by setting the revealtype setting to "goto", correct? With that pre-requisite, inside the .js file, find the following lines:
Code:
setTimeout(function(){location=targetLink.href}, 200)
which by default just loads the target page in the same browser window. To alter it so the page is loaded in another frame, you can change the above to something like:
Code:
setTimeout(function(){window.frames['framename'].location=targetLink.href}, 200)
Where "framename" is the name of the frame you want to target.
Edit: Fixed an error in the sample code
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