as3动态加载多张图片,自动缩放并加鼠标边框![新手]

/***imgload.as*****/
package{
import flash.display.Loader;
import flash.display.Sprite;
import flash.net.URLRequest;
import flash.display.LoaderInfo;
import flash.events.*;
import flash.display.MovieClip;
public class imgload extends Sprite
{
   private var list:Array,img:Array;
   private var v_int=92;
   private var v_height:int=107;
   private var count:Number=0;
   public function imgload():void
   {
    list = new Array();
    img = new Array();
   }
   public function loadImg(str:String):void
   {
    list = str.split(',');
    for(var i:int=0;i<list.length;i++)
    {
     var loadimg:Loader = new Loader();
     loadimg.name = "loadimg"+i;
     var url:String = "image/t"+list[i]+".jpg";
     loadimg.load(new URLRequest(url));
     img.push(loadimg);
    }
    addListen(img);
   }
   public function addListen(loadarry:Array):void
   {
    for(var i:int=0;i<loadarry.length;i++)
    {
     loadarry[i].contentLoaderInfo.addEventListener(Event.COMPLETE,onLoadComplete);
    }
   }
   public function onLoadComplete(e:Event):void
   {
    var l:Loader = e.target.loader;
    var n_int = l.content.width;
    var n_height:int = l.content.height;
    var n_num:Number = v_width/v_height;

    var t_int = n_width;
    var t_height:int = n_height;
    var rate:int;
    var n_state:Boolean = n_width>v_width || n_height>v_height ? true:false;
   
    if(n_state)
    {
     if(n_width/n_height>n_num)
     {
      rate = n_width/v_width;
      t_width = v_width;
      t_height = n_height/rate;
     }
     else if(n_width/n_height<n_num)
     {
      rate = n_height/v_height;
      t_height = v_height;
      t_width = n_width/rate;
     }
    }
    l.content.width=t_width-2;
    l.content.height=t_height-2;
    l.content.x = 1;
    l.content.y = 1;
   
    var boxmc:imgbox = new imgbox();
    boxmc.width = t_width;
    boxmc.height = t_height;
    boxmc.alpha=0;
    var mc:MovieClip = new MovieClip();
    mc.addChild(boxmc);
    mc.width=t_width;
    mc.height=t_height;
    mc.addChild(l);
    mc.x=100;
    mc.y=count;
    mc.addEventListener(MouseEvent.MOUSE_OVER,function(){boxmc.alpha=100;mc.buttonMode=true;mc.useHandCursor=true;});
    mc.addEventListener(MouseEvent.MOUSE_OUT,function(){boxmc.alpha=0;});
    addChild(mc);
    count = count+t_height;
   }
}
}

/***index.fla 第一针.***/

var str:String = "1024,1226,1428,newyearLogo";//图片列表.因为我做的是php+as通信所以这个地方的参数以后是由php来完成的.当 然试验的时候图片的名字为 t1024.jpg,t1226.jpg,t1428.jpg,tnewyearLogo.jpg并放在image文件夹里.
var k:imgload = new imgload();
k.loadImg(str);
addChild(k);

/***库里的文件:***/

mc名-> imgbox [类名:imgbox]
说明:这个imgbox主要是用来做那个鼠标边框的,就是那个蓝色的边框...如果我能做出蓝色+亮色的效果就炫了.