Menu with slider HELP needed

So I pretty much did this tutorial http://www.kirupa.com/developer/mx2004/menu_with_slider.htm. And it works pretty smooth with my navigation and all, but it would be even greater if I could…

When you rollover one of the buttons the slider moves there and stays, BUT I would like the sliding bar to move back to the selected button. So if I had

HOME_btn ABOUT ME_btn CONTACT_btn MOVIES_btn

and say when the movie first comes up the sliding bar is under HOME if you rollover the CONTACT_btn the slider bar would slide under CONTACT, but when rolled off it slides back under HOME,and so forth with the rest of the buttons. So clicking MOVIES would then make the slider stay under the MOVIES button and return there after rolling off another button. Help, I’ve tried a few things but I think I’m lost and don’t even have a clue where to go from here.