Multiple actions in one button... problem

I want it to move the nav (down) and then go to the correct section in another MC

I have this action on the button:

on (press) {
_root.slideObject(“slider”, 531, 823, 3);

//this to slide the nav down

_root.contents.gotoAndStop("collection");

}

//this to go to the collection section on the MC contents


The other buttons have this:

on (press) {
_root.slideObject(“slider”, 531, 523, 3);

//this to slide the nav backup to original position

_root.contents.gotoAndStop("about");

}

//this to go to the about section on the MC contents (etc)

Is not working correctly.

Not sliding as it did at beginning. The other buttons take a few clicks before getting back to original position.

What am I missing???

Does it need an if then statement?

Not a good actionscripter (obviously) here asking for some help.

thanks a bunch…