I have one frameset page called frameset1.html which contains 2 frames called header & body, with content banner.html & content.html.

Then i have a second frameset page called frameset2.html which contains 2 frames called left & main, with content nav.html & press.html.

I want to add a link to the content.html page that achieves two things:
1. loads the frameset2.html into the frameset1.html body frame.
2. changes the main frame content from press.html to apress.html.

I've tried the following approach so far:

I added the onclick='return goGetPress("apress.html")' event to the link in content.html, which calls the following javascript function in the same page:

// loads the press frameset with main frame <pr>
function goGetPress(pr) {
window.body.location.href = "frameset2.html";
top.body.main.location.href = pr;
}

However i always get the same script error - window.body.location is not an object.

Hope this makes it a bit more understandable, although still complicated:-s

But I don't think that's really what you want. I think you're going to need to dynamically generate that frameset2 page. I'd make it a cgi and pass the url of the body "press.html" or "apress.html" as a parameter.