Accordion menu

[FONT=Arial][SIZE=2][COLOR=#000000]Hello, I’m making an accordion menu with teewnlite,[/COLOR][/SIZE][/FONT]i resolve the script and now works,


import gs.TweenLite;
import gs.easing.*;

content_mc.stop();

/************** Slide Menu **************/
var invisible_menu : Number = menu_mc2.y
var visible_menu : Number = menu_mc2.y

//Rollover btn1

menu_mc.addEventListener(MouseEvent.ROLL_OVER,showMenu);
menu_mc.addEventListener(MouseEvent.ROLL_OUT,hideMenu);

function showMenu(event:MouseEvent) :void{
    visible_menu = 100
    TweenLite.to(menu_mc2, .2, {y:visible_menu,ease:Linear.easeIn});
    visible_menu = 128
    TweenLite.to(menu_mc3, .2, {y:visible_menu,ease:Linear.easeIn});
}

function hideMenu(event:MouseEvent):void {
    invisible_menu = 28
    TweenLite.to(menu_mc2, .4, {y:invisible_menu,ease:Linear.easeOut});
    invisible_menu = 56
    TweenLite.to(menu_mc3, .4, {y:invisible_menu,ease:Linear.easeOut});
}

//Rollover btn2

menu_mc2.addEventListener(MouseEvent.ROLL_OVER,showMenu1);
menu_mc2.addEventListener(MouseEvent.ROLL_OUT,hideMenu1);

function showMenu1(event:MouseEvent) :void{
    visible_menu = 128
    TweenLite.to(menu_mc3, .2, {y:visible_menu,ease:Linear.easeIn});
}

function hideMenu1(event:MouseEvent):void {
    invisible_menu = 56
    TweenLite.to(menu_mc3, .4, {y:invisible_menu,ease:Linear.easeOut});
} 

Now, how can I simplify the code, if possible ?
sample in the file

thank you