想让影片剪辑在鼠标移动上去后换背景色，但只有一个能换

复制内容到剪贴板

代码:

var arr:Array = [];
var u:Array = ["http://www.baidu.com", "http://www.163.com", "http://www.sina.com"];
var wen:Array = ["百度", "网易", "新浪"];
for (var i = 0; i<3; i++) {
    arr[i] = createEmptyMovieClip(arr[i], this.getNextHighestDepth());
    var _mc:MovieClip = arr[i];//重构
    _mc.url = u[i];
    _mc.createTextField("my_txt",this.getNextHighestDepth(),0,0,100,60);
    _mc.my_txt.text = wen[i];
    _mc.my_txt.textColor = 33333333;
    _mc._y = 26*i;
    _mc.onRollOver = function() {
        //getURL(this.url, "_blank");
        this.clear();
        this.beginFill(0x555555,100);
        this.moveTo(0,0);
        this.lineTo(100,0);
        this.lineTo(100,25);
        this.lineTo(0,25);
        this.lineTo(0,0);
        this.endFill();
    };
    _mc.onRollOut = _mc.onReleaseOutside = function () {
        this.clear;
        with (this) {
            beginFill(0x000000,100);
            moveTo(0,0);
            lineTo(100,0);
            lineTo(100,25);
            lineTo(0,25);
            lineTo(0,0);
            endFill();
        }
    };
    _mc.onRollOut();
}