How to target a function/variable at parent/root?

1

I have a new class at .as file and linkage it to my library. It

has an event click on it.
In my time line I create a new object of that class.
The problem is, when I click the MovieClip I want to call a

function that placed in my timeline/root or change the variable

that I declare at my timeline/root.
How I suppose to do that?

=== with AS2 ===

  • At root
    var a:Number=1;
    function func()
    {
    trace(“whatever”);
    }
  • I place a movieclip at root and place the script inside it
    onRelease=function()
    {
    _parent.a=2;
    _parent.func();
    }
    ================

Anyone can help me?
Thx in advance.