var fishes:Array = new Array();  
var MYfish:Fish = new Fish();  
var i: int;
var amount: int = 10;
       
for (i = fishes.length; i < fishes.length + amount; i++ )
  {
     addChild(MYfish);  
     fishes.push(MYfish);
     fishes[i].x = 100 + Math.random()*10;
     fishes[i].y = 100 + Math.random()*10;
  }