Swing in menu hyperlinks

I created a swing in menu with five buttons. After “swinging in” these buttons change color on mouse rollover from black to orange. Now I have a problem with setting hyperlinks.
I use

onClipEvent (enterFrame) {
_x = _root.button3._x
}

script and after that with

on (release) { getURL

Hyperlink works, but the button does not change color anymore…
Has someone please a solution for this problem ? Can I use an other function to maintain the color change ?
Thanks