如何正确地追加孩子

Question

我正在尝试使用Javascript

制作ul内的音乐专辑的动态列表

    var heavyArtillery = new Album("Heavy Artillery","Arkasia","2011");
    var antenna = new Album("Antenna","Sonic Youth","2012");

    albumList = new Array(heavyArtillery,antenna);

    var albumLi;
    var ul = document.getElementById("albumlist");

    for(var i=0; i<albumList.length; i=i+1)
    {

        albumLi  = document.createElement('li');
        albumLi.innerHTML = ""+albumList[i].album;
        //ul.appendChild(albumLi);
        alert(i);


    }

如果我从appendChild行获取评论，则警报（i）甚至不会显示。为什么它不能正常工作？这是HTML片段：

<div data-theme="a" data-role="header">
    <h3>
        Albums
    </h3>
</div>

<ul id="albumlist">
</ul>