rows and columns of rectangles part 2 (random vs. ordered, exponential)

This is the ActionScript I came up with so far.  Brick is referring to a rectangle symbol with Export:Brick for actionscript in my Library.

var bricks:Array;
var myBrick:Brick;
makeBricks();
function makeBricks(){

bricks=new Array();
for (var i:uint=1;i<6;i++){
  for(var j:uint=1;j<4;j++){
   for(var h:uint=1;h<5;h++){
    var scale:Number=Math.ceil(h*Math.random());
  
   myBrick=new Brick();
   addChild(myBrick);
   myBrick.x=i*myBrick.width*scale;
   myBrick.width=h*20;
   myBrick.height=h*20;
  
   myBrick.y=j*myBrick.height*scale;
  
   trace(scale);
  
   bricks.push(myBrick);
   }
  }
}
}