var boxList:Array=[["box1",10,20],["box2",150,120],["box3",200,300],["box4",10,300],["box5",320,330]];

for (var i = 0; i < boxList.length; i++) {

        var classRef:Class=getDefinitionByName(boxList[i][0]) as Class;

        var myBox:MovieClip =  new classRef();

        addChild(myBox);

        myBox.x=boxList[i][1];

        myBox.y=boxList[i][2];

}

var boxList:Array=[["box1",10,20],["box2",150,120],["box3",200,300],["box4",10,300],["box5",320,330]];

 

var boxListForRand:Array = boxList.concat();

var i:int;

var randomBox:MovieClip;

var len:int   = boxListForRand.length;

var index:int;

for(i = 0; i < len; i++){

index = Math.floor(Math.random() * boxListForRand.length);

var classRef:Class=getDefinitionByName(boxListForRand[index][0]) as Class;

var randomBox:MovieClip =  new classRef();

addChild(randomBox);

randomBox.x=boxListForRand[index][1];

randomBox.y=boxListForRand[index][2];

boxListForRand.splice(index,1);

 

}

var classNames:Array = ["box1", "box2", "box3", "box4", "box5"];

var len:int = classNames.length;

var boxesList:Array = [];

var ClassRef:Class;

 

for (var i:int = 0; i < len ; i++) {

     ClassRef = Class(getDefinitionByName(classNames[i]));

     boxesList[i] = new ClassRef();

     addChild(boxesList[i]);

}

 

var currentBox:MovieClip;

for (var ii:int = 0; ii < len ; ii++) {

     currentBox = boxesList[ii];

     currentBox.x = Math.random() * (stage.stageWidth - currentBox.width);

     currentBox.y = Math.random() * (stage.stageHeight - currentBox.height);

}