PHP-将JQuery自动完成附加到由Ajax调用加载的文本字段

我有一个简单的Web应用程序,在其中创建了一个向导,每个向导页面都包含从数据库填充的不同表单字段,当用户按下时,接下来使用Ajax调用从服务器检索页面数据.这是针对Ajax调用从服务器检索的页面代码.我使它易于理解.

function printADalertWizardStep($step)
    {
            switch($step)
            {
                case 1: //step of wizard, first step
                    print "Welcome to alert wizard,...";
                    break;
                case 2: //second step of wizard which contains the text field to which I want to attach autocomplete list.
                ?>
<table>
        <tr>
        <td>Keywords</td>
        <td><!-- This is text field to which I want to attach autocomplete -->
        <input id="nalertkw" name="nalertkw" size="10" type="text">
        </td>
    </tr>
</table>

            <?PHP
            break;
            }
        }
    }

用于将自动完成功能附加到关键字文本字段的Java脚本代码是

//Script will be executed when the page is ready for scripting
$(document).ready(function() {
var availableTags = [
            "ActionScript",
            "AppleScript",
            "Asp",
            "BASIC",
            "C",
            "C++",
            "Clojure",
            "COBOL",
            "ColdFusion",
            "Erlang",
            "Fortran",
            "Groovy",
            "Haskell",
            "Java",
            "JavaScript",
            "Lisp",
            "Perl",
            "PHP",
            "Python",
            "Ruby",
            "Scala",
            "Scheme"
        ];
        $( "#nalertkw" ).autocomplete({
            source: availableTags
        });
});

现在的问题是,当用户不按#nalertkw文本字段时,在用户按下“下一步”并且$(document).ready()函数已经触发之后,将加载表单.因此,自动完成功能不起作用.我正在使用Jquery-UI Autocomplete,如何将自动完成功能附加到通过Ajax调用加载的文本字段？

编辑：此外,我已经在带有文本字段的简单页面(没有Ajax调用)上测试了我的设置,并以相同的方式将自动完成功能附加到该文本字段.它绝对正常.它确认自动完成设置正确,但是将其附加到通过Ajax调用检索的文本字段时不起作用.

@R_502_5620@:

尝试将事件挂接到Ajax调用的：success处理程序中,如下所示,

$.ajax({
                    url: "page.aspx/FetchEmailList",
                    data: "{ 'mail': '" + request.term + "' }",
                    dataType: "json",
                    type: "POST",
                    contentType: "application/json; charset=utf-8",
                    dataFilter: function (data) { return data; },
                    success: function (data) {
                                  $( "#nalertkw" ).autocomplete({
                                    source: availableTags
                              });

                            }
                        }))
                    }
       });