Should be simple Javascript, right?

I’ve found great examples on this site for complex or tricky Javascript situations, but I’m still stumbling around trying to find a simple solution to a simple problem… Or maybe it’s not so simple? Here’s the deal:

I have created a main page that, when you click on a link, spawns a popup window. When you click on a link in this new popup window, I want this popup window to close itself, and have the URL open up in the main parent window that initially spawned the popup. Could anyone pleaseshed some light on this simple(?) problem?

Thanks!