JQuery自动完成选择事件未激发

我正在尝试使用JQuery自动完成来搜索我的网站

我面临的问题是，数据显示正确。但当我尝试选择任何项目时。什么也没发生。选择事件不触发

我的aspx代码如下：如果此代码有问题，请帮助我

我的理解是，如果我从自动完成结果中选择任何项目，则应显示所选消息

<script type="text/javascript">
    $(document).ready(function () {
        $("input#autocomplete").autocomplete("Search.ashx",
            {
                delay: 0,
                max: 30,
                min: 10,
                width: 300,
                formatItem: function (data, i, n, value) {
                    var temp = value.split(",")[3];
                    temp = temp.replace(" ", "-");
                    var result = "<table><tr><td> <a  href='" + value.split(",")[2] + "'><img style = 'width:40px;height:50px' src= images/mobiles/" + value.split(",")[1] + " /> " + "</a></td><td style='Vertical-Align:Top'> <a  href='" + value.split(",")[2] + "'>" + value.split(",")[0] + "</a></td></tr></table>";
                    return result;
                },
                select: function (e, ui) {
                    alert("selected!");
                }
            });
        });

<script type="text/javascript">
    $(document).ready(function () {
        $("input#autocomplete").autocomplete("Search.ashx",
            {
                delay: 0,
                max: 30,
                min: 10,
                width: 300,
                source: function (data, i, n, value) {
                    var temp = value.split(",")[3];
                    temp = temp.replace(" ", "-");
                    var result = "<table><tr><td> <a  href='" + value.split(",")[2] + "'><img style = 'width:40px;height:50px' src= images/mobiles/" + value.split(",")[1] + " /> " + "</a></td><td style='Vertical-Align:Top'> <a  href='" + value.split(",")[2] + "'>" + value.split(",")[0] + "</a></td></tr></table>";
                    return result;
                },
                select: function (e, ui) {
                    alert("selected!");
                }
            });
        });
</script>