I have an initial index page that will lead users to either English or
Spanish site

If they choose English I want them to be able to use the back button on the
browser to return them to the language decision page (index).

Although I use the following for the englisg button

english_btn.onRelease = function() {
getURL("zapsite4.html",_self);
}

Its always opening a new browerser window with no back button available.

How can I achieve my desired effect?

Thanx
[quoted text, click to view]
page in the existing browser window