Disappear

i have a movie clip and when the character hits it disappears, however when i go to a different frame and come back to that one it has appeared again.

This is my script

onClipEvent (load) {
    gettable = 0;
}
onClipEvent (enterFrame) {
    if (gettable == 0) {
        if (_root.cuthbert_mc.hitTest(_x, _y, true)) {
            _root.cuth_roll_txt += 1;
            this._visible=false
            gettable = 1;
        }
    }
}

i Think it is because of the on(load) thing but i can’t think of what to do