Action Script Tween for Navigation

[evo27]

hi guys.

I'm trying to make a navigation menu with AS tweening. So far I have all 4 buttons and a graphic inside a movie clip named "logo_mc" with an instance name of "logo_mc".

I have managed to AS tween the movment of the logo_mc clip with each of the 4 buttons and position the x & y of the "logo_mc" accordingly. Though if I press any of the other button the logo_mc ends up moving in places on screen where I don't want them to go. Here is what I have so far.

 
stop();
 
logo_move._x=238.0;
logo_move._y=171.0;
 
this.logo_move.button_one.onRelease = down;
this.logo_move.button_two.onRelease = right;
this.logo_move.button_three.onRelease = up;
this.logo_move.button_four.onRelease = left;
 
import mx.transitions.Tween;
import mx.transitions.easing.*;
 
function down() {
new Tween (logo_move,"_y",Strong.easeOut,171,300,2,true);
}
 
function right() {
new Tween (logo_move,"_x",Strong.easeOut,238,44.0,2,true);
}
 
function up() {
new Tween (logo_move,"_y",Strong.easeOut,171,30.0,2,true);
}
 
function left() {
new Tween (logo_move,"_x",Strong.easeOut,238,450.0,2,true);
}
 
 

This is all good. Though I need some help with the next step I'm trying to achieve. What I would like to achieve is once a button, say "button_one " for example, is pressed the "logo_mc" clip will move into position. At the time "button_one " has been pressed and tweens i need to make all other buttons disabled and to also be able to press the same "button_one " to Action Script tween back to the centre of the x & y positions I have labled in the top of the action script window.

I have a feeling I made an if else statement to tell AS that once "button_one " has been pressed and "logo_mc" has reached its x&y position to then enable the same button ("button_one ") to tell AS to move "logo_mc" back to the centre x&y position. Would this be right?

I hope that dosn't sound confusing. If anyone could help/assist/point me in the right direction that would be greatly appreciated.

thanks