Variable problem

Hi all!

I have this functions which attaches movieclips on the Stage and makes them move clockwise. The problem is i cant pass the radius* variable to the new movieclips.

the code

function placeItems(itemName:String, num:Number) {
    var angle:Number = 0;
    var radius:Array = new Array();
    for (var i:Number = 0; i<num; i++) {
        radius* = Math.floor(Math.random()*100);

        this["item"+i+"_mc"].onEnterFrame = function() {
            this._x = Stage.width/2+(radius**(Math.cos(angle*(Math.PI/180))));
            this._y = Stage.height/2+(radius**(Math.sin(angle*(Math.PI/180))));



Thank you in advance!