[udaaff]

for (var i:Number = 0; i < 3; i++)
{
	for (var j:Number = 0; j < 4; j++)
	{
		var mc:MovieClip = attachMovie("id", "id_" + i + "_" + j, getNextHighestDepth());
		mc._x = j * 40;
		mc._y = i * 40;
	}
}