Visibility Class

programming flash
1

I am trying to create a class that will set the visibility of all movieClips to false by default. I would like to call a function like showClip(box_mc, triangle_mc) and change the visibility of just these movieClips to true. I have started creating my “Cloak class” but definitely need some guidance. The errors vary based on several attempts I’ve made but here is what I have thus far.

 
package 
{ 
import flash.display.MovieClip; 
public class Cloak extends MovieClip
{ 
public function Cloak() 
 { 
 box.visible = false;
    
 } 
 
 public function showClip(clipName:String):void
      {
        var c = clipName;
        c.visible = true;
      }
} 
}