请求写一个正确的用于ASP。NET AJAX1.0的JAVASCRIT脚本文件

我在学习《使用ASP.NET Atlas编写显示真实进度的ProgressBar（进度条）控件》(原文是:http://dflying.cnblogs.com/archive/2006/03/28/361146.html),觉得很不错,解决了.NET进度条的问题，但是当我用ASP。NET AJAX1.0来做，复制了示例代码，发现一个问题,就是它的示例代码是用于ASP.NET Atlas,如果我用的是ASP。NET AJAX1.0,它的脚本文件写法就不一样,是新的.NET框架的JAVASCRIT脚本扩展语法,恳请高手帮我修改一下:
源代码如下:
Sys.UI.ProgressBar = function(associatedElement) {
    Sys.UI.ProgressBar.initializeBase(this, [associatedElement]);

    var _timer = new Sys.Timer();
    var _progress = 0;
    var _serviceURL;
    var _serviceMethod;
    var _responsePending;
    var _tickHandler;
    var _obj = this;

    this.get_progress = function() {
        return _progress;
    }

    this.set_progress = function(value) {
        if (value >= 100) {
            _timer.set_enabled(false);
        }
        _progress = value;
        associatedElement.style.width = value + "%";
        associatedElement.innerHTML = value == 100 ? "Done!" : value + "%";
    }

    this.get_interval = function() {
        return _timer.get_interval();
    }

    this.set_interval = function(value) {
        _timer.set_interval(value);
    }

    this.get_serviceURL = function() {
        return _serviceURL;
    }

    this.set_serviceURL = function(value) {
        _serviceURL = value;
    }

    this.get_serviceMethod = function() {
        return _serviceMethod;
    }

    this.set_serviceMethod = function(value) {
        _serviceMethod = value;
    }

    this.getDescriptor = function() {
        var td = Sys.UI.ProgressBar.callBaseMethod(this, 'getDescriptor');
        td.addProperty('interval', Number);
        td.addProperty('progress', Number);
        td.addProperty('serviceURL', String);
        td.addProperty('serviceMethod', String);
        td.addMethod('start');
        td.addMethod('stop');
        return des;
    }

    this.initialize = function() {
        Sys.UI.ProgressBar.callBaseMethod(this, 'initialize');
        _tickHandler = Function.createDelegate(this, this._onTimerTick);
        _timer.tick.add(_tickHandler);
        this.set_progress(0);
    }

    this.dispose = function() {
        if (_timer) {
            _timer.tick.remove(_tickHandler);
            _tickHandler = null;
            _timer.dispose();
        }
        _timer = null;
        associatedElement = null;
        _obj = null;

        Sys.UI.ProgressBar.callBaseMethod(this, 'dispose');
    }

    this.start = function() {
        _timer.set_enabled(true);
    }

    this.stop = function() {
        _timer.set_enabled(false);
    }

    this._onTimerTick = function(sender, eventArgs) {
        if (!_responsePending) {
            _responsePending = true;

            // Asynchronously call the service method.
            Sys.Net.ServiceMethod.invoke(_serviceURL, _serviceMethod, null, null, _onMethodComplete);
        }
    }

    function _onMethodComplete(result) {
        // Update the progress bar.
        _obj.set_progress(result);
        _responsePending = false;
    }
}
Type.registerSealedClass('Sys.UI.ProgressBar', Sys.UI.Control);
Sys.TypeDescriptor.addType('script','progressBar', Sys.UI.ProgressBar); --------------------编程问答-------------------- 版主,请求帮忙!!!! --------------------编程问答-------------------- 怎么没人会呢??? --------------------编程问答-------------------- 学习 --------------------编程问答-------------------- 有人帮忙解决吗??? --------------------编程问答-------------------- 有人帮忙解决吗??? --------------------编程问答-------------------- 有人帮忙解决吗??? --------------------编程问答-------------------- 如果你JavaScript基础没问题的话，先读读ASP.NET AJAX的JavaScript，模仿RTM的样子将Dflying的CTP版本改为正式版，这应该不难。 --------------------编程问答-------------------- 已经模仿了,但就是调试这个JS文件出错,可否请高手大力支持一下 --------------------编程问答-------------------- 有人帮忙解决吗???

补充：.NET技术 ,  ASP.NET