Tween class and setTimeout function for a website main menu

Hi people,

I’m a beginner in as2. I found this open code to make a menu.
It’s working well, but I want to make a tween class to launch this menu and wait 4 seconds to start. Any suggestions? Thanks.

var menuButtons:Array = [“Home”, “Graphic”, “Multimedia”, “Interior”, “Architecture”, “Contact”];
var subMenu1:Array = [“News”, “Updates”];
var subMenu2:Array = [“I Love Sunglasses”, “Maatkleding”, “Skipper Sticker”, “Veeding”, “Alma”, “Daniella Beauty”, “e- Babe”, “Cro- Let”];
var subMenu3:Array = [“Sapph”, “LCT”, “Veeding”, “Maatkleding”, “I Love Sunglasses”, “Juice Promotions”, “De Laat”, “e- Babe”, “Tommy Hilfiger”, “Karl Lagerfeld”, “Hellebelden”, “FHM”, “Carla Bruni”, “The Terrace”, “Belderbos”];
var subMenu4:Array = [“De Laat”, “LCT Utrech”, “LCT Amsterdam”, “LCT Haarlem”, “LCT Rotterdam”];
var subMenu5:Array = [“Villa Berkel”];
var chosenMenu:Array = new Array();
var subMenuOpened:Boolean = false;
var whichSubMenu:Number = new Number();
var currentPosition:Number = new Number();
for (i=0; i<menuButtons.length; i++) {
this.attachMovie(“menu button”, “menuButton”+i, this.getNextHighestDepth());
this[“menuButton”+i]._x = 1+(120i);
this[“menuButton”+i]._y = 738;
this[“menuButton”+i].label_txt.text = menuButtons
;
menuButton_mc[“menuButton”+i].onPress = function():Void {
var mainMenuColor:Color = new Color(this[“menuButton”+i].bkgColor_mc);
mainMenuColor.setRGB(0x006699);
};
this[“menuButton”+i].onRollOver = function():Void {
whichSubMenu = Number(this._name.substr(-1, 1));
currentPosition = this._x;
if (!subMenuOpened) {
subMenuOpened = true;
openSubMenu(whichSubMenu, currentPosition);
} else {
closeSubMenu();
openSubMenu(whichSubMenu, currentPosition);
}
};
}
function openSubMenu(whichSubMenu, currentPosition):Void {
chosenMenu = eval(“subMenu”+(whichSubMenu+1));
for (j=0; j<chosenMenu.length; j++) {
this.createEmptyMovieClip(“subMenuHolder_mc”, this.getNextHighestDepth());
subMenuHolder_mc.attachMovie(“menu button”, “subMenuButton”+j, this.getNextHighestDepth());
subMenuHolder_mc[“subMenuButton”+j]._x = currentPosition;
subMenuHolder_mc[“subMenuButton”+j]._y = 708+(j*-30);
subMenuHolder_mc[“subMenuButton”+j].label_txt.text = chosenMenu[j];
subMenuHolder_mc[“subMenuButton”+j].onRelease = subMenuHolder_mc[“subMenuItem”+j].onReleaseOutside=function ():Void {
this._parent._parent.webSiteContent_mc.gotoAndStop(this.label_txt.text);
closeSubMenu();
};
subMenuHolder_mc[“subMenuButton”+j].onRollOver = function():Void {
var subMenuRollOverColor:Color = new Color(this.bkgColor_mc);
subMenuRollOverColor.setRGB(0x0D9C0C);
};
subMenuHolder_mc[“subMenuButton”+j].onRollOut = function():Void {
var subMenuRollOutColor:Color = new Color(this.bkgColor_mc);
subMenuRollOutColor.setRGB(0xFFFFFF);
};
}
}
function closeSubMenu():Void {
removeMovieClip(subMenuHolder_mc);
}