code: function() {
  		
  		for (var cI in this.layer.containers) {
  	    	var c = this.layer.containers[cI];
  	    
  	    	var checkPoints = this.getContainerCorners(c);
  	    	var inside = true;
  	    
  	    	for (var i in checkPoints)
  				inside &= this.rubberband.pointIsInside(checkPoints[i].x, checkPoints[i].y);
  		
  	    	if (inside) {
  				this.addContainer(c);
  	    	}
  		}
  	
     }
docs: rubberbandSelect