[F8] Button Issues / _visible

[Robb@exo]

Man, am I frustrated. Didn't really consider myself a novice, but since I can't figure this out, I think I need to re-evaluate. I have these buttons left and right that tween a mc when pressed. Now when the _x value of the mc gets to certain point I want the buttons to becomse invisible. Problem is, they don't. Here's what I have for code:

lTmb_mc.onPress = function() {
if(tmbs._x <= 519.9) {
this._visible = true;
} else {
this._visible = false;
}
myTweenX = new Tween(tmbs, "_x", Regular.easeOut, 373, 519.9, 2, true);
}
rTmb_mc.onPress = function() {
if(tmbs._x >= 519.9) {
this._visible = true;
} else {
this._visible = false;
}
myTweenX = new Tween(tmbs, "_x", Regular.easeOut, 519.9, 373, 2, true);
}

As it stands the tween occurs whenever the button is pressed and I'd like to have it so that when the mc._x reaches a position, it won't continue to tween. I know there's a solution, probably simple too, that eludes me. If there's a better way, please feel free to enlighten me. Thanks.

[gparis]

onPress as a single command will not 'wait and see if' the correct _x pos. of the tmbs has been reached. You need a loop that will 'wait and see if'

check .onMotionFinished in the Tween class in the livedocs or your help files.

here you have them all:
http://livedocs.adobe.com/flash/8/main/00004142.html

gparis