jQuery LI删除在IE8中失败

我有一个简单的ASP.Net表单,其中包含以下无序列表:

<ul id="ctl00_ContentPlaceHolder1_BulletedList1">
    <li>No Lines Added</li>
</ul>

当一个用户开始填写表单的其他部分时,我想删除这一部分 <LI> 开始在列表中填充其他 <LI> 元素。下面的代码是我如何删除的:

function commitLine() {
    //if "No Lines Added" is the only item, remove all items, otherwise
    //continue with the additional item
    if ($("#ctl00_ContentPlaceHolder1_BulletedList1 li:nth-child(1)").text() == "No Lines Added") {
        $("#ctl00_ContentPlaceHolder1_BulletedList1 li").remove();
    }
    //code that begins the list population
}