prova cosi:

codice:
_root.menu.sub1._x = 280;
_root.menu.sub2._x = 280;
this.dec = 5;
function Sposta() 
{
	this.sub1.onEnterFrame = function() 
	{
		_root.menu.sub1._x = _root.menu.sub1._x+(-214-_root.menu.sub1._x)/dec;
		_root.menu.sub2._alpha -= 10;
	};
	this.sub2.onEnterFrame = function() 
	{
		_root.menu.sub2._x = _root.menu.sub2._x+(280-_root.menu.sub2._x)/dec;
	};
}
function Sposta_2() 
{
	this.sub2.onEnterFrame = function() 
	{
		_root.menu.sub2._x = _root.menu.sub2._x+(-82-_root.menu.sub2._x)/dec;
		_root.menu.sub2._alpha += 10;
	};
	this.sub1.onEnterFrame = function() 
	{
		_root.menu.sub1._x = _root.menu.sub1._x+(280-_root.menu.sub1._x)/dec;
	};
}
this.squadre.onPress = function() 
{
	Sposta();
};
this.stagione.onRelease = function() 
{
	Sposta_2();
};