Changing colour of movies clips instance in array

1

Hi i have a small issue… Basically i want to run a loop that will change all of the colours of the movieclip instances… so i have setup an array:

var Black_Orbs:Array = Array("info_mc", "name_mc", "lift_mc");

function change()
{
 for  (i=0; i<Black_Orbs.length; i++)  {

var blkColor = new Color(blackdots_mc.Black_Orbs*);
blkColor.setTransform({rb:0, aa:100});

}

When change function is called it does not return the movieclips back to black… but if i manually type: blackdots_mc.info_mc); works fine…can any1 help me out? thanks