Pop Up Actionscript Menu

programming flash
1

hi i am currently trying to make a menu that sits at the bottom of the screen and the user can only see the word menu and the top bar of the menu and i want it to move up revieling the full menu when the user rolls over the menu, so i have designed some code that i thought would accomplish this for me, but the code is not working for me for some reason, i dont get any errors and i cant spot the problem its prob sommit easy and i need help lol! thanks


var heightNum:Number = new Number();

heightNum = 595;

menuHolder.x = 0;//This sets the x co-ordinates of the menuHolder

menuHolder.y = heightNum;//This sets the y co-ordinates of the menuHolder

menuHolder.width = stage.stageWidth;//This sets the width of the menuHolder

menuHolder.height = stage.stageHeight / 2.5;//This sets the height of the menuHolder

menuHolder.addEventListener(MouseEvent.MOUSE_OVER, menuOver);//this event listener looks out for the rollover on the menuHolder item 
menuHolder.addEventListener(MouseEvent.MOUSE_OVER, menuOut);//this event listener looks out for the rollout on the menuHolder item

function menuOver(evt:MouseEvent):void{
    
    heightNum = 420;
    
}

function menuOut(evt:MouseEvent):void{
    
    heightNum = 595;
    
}