FMX04 Help with extending reverse frames script

1

Almost 2 years ago I asked this question about reversing frames on mouseOut. But now I need a lil help on extending its function. Lets say my animation is 50 frames. Between 1-25 the clip is tweening down. So if a mouseOut occurs any where between 1-24 the clip reverses (which works with the script GParis hooked me up with 2 years ago). But now if the clip reaches 25 I want the clip to stop there then on a mouseOut from that point play the second half of my animation (the clip tweening back up) the at the end ill have a gotoAndStop on frame 1, to await another mouseOver. So basically anything from 25 on I dont want it to reverse frames. Here is the script I have been using for quite sometime. (unfortunately all other skills have advanced except AS)

Help greatly appreciated.

onClipEvent (load) { 
    stop(); 
} 
onClipEvent (mouseMove) { 
    if (hitTest(_root._xmouse, _root._ymouse, true)) { 
        hit=true; 
    } else { 
        hit=false; 
    } 
} 
onClipEvent (enterFrame) { 
    if (hit) { 
        gotoAndStop (this._currentFrame+1); 
    } else { 
        gotoAndStop (this._currentFrame-1); 
    } 
}