通过jqueryui实现邮件提示

//js代码
$(function () {
        var availableTags = ["@qq.com", "@gmail.com", "@126.com", "@163.com", "@hotmail.com", "@yahoo.com", "@yahoo.com.cn", "@live.com", "@sohu.com", "@sina.com"];
        var result = [];
        $("#txtEmail").autocomplete({
            source: function (request, response) {
                for (var i = 0; i < availableTags.length; i++) {
                    result.push(request.term + availableTags[i]);
                }
                response(result);
                result = [];
            }
        });
    });

<!--html代码：-->  <input id="txtEmail" type="text" placeholder="请输入您的邮箱！"  />