function include_file(file, _type, callback) {

    var _doc = document.getElementsByTagName('head')[0];

    var isIE = navigator.userAgent.toUpperCase().indexOf("MSIE") == -1 ? false : true;

    var _fileObj;

    if (_type == "script") {

        _fileObj = document.createElement('script');

        _fileObj.setAttribute('type', 'text/javascript');

        _fileObj.setAttribute('src', file);

        _doc.appendChild(_fileObj);

        if (!isIE) {

            _fileObj.onload = function () {

                callback()

            }

        }

        else {

            _fileObj.onreadystatechange = function () {

                if (_fileObj.readyState == 'loaded' || _fileObj.readyState == 'complete') {

                    callback()

                }

            }

        }

    }

    else if (_type == "css") {

        _fileObj = document.createElement('link');

        _fileObj.setAttribute('type', 'text/css');

        _fileObj.setAttribute('rel', 'stylesheet');

        _fileObj.setAttribute('href', file);

        _doc.appendChild(_fileObj);

        if (!isIE) {

            callback()

        } else {

            _fileObj.onreadystatechange = function () {

                if (_fileObj.readyState == 'loaded' || _fileObj.readyState == 'complete') {

                    callback()

                }

            }

        }

    }

}

jQuery(document).ready(function ($) {

    include_file("/Css/fanhuidibu.css", "css", function () {

        //        if (!IsLoads("/js/jquery-1.3.2.min.js")) {

        //            include_file("/js/jquery-1.3.2.min.js", "script", action)

        //        } else {

        //            action()

        //        }

        action();

    })

});

function action() {

    $(document.body).append("<div id=\"roll\" style=\"display:none;\"><div title=\"回到顶部\" id=\"roll_top\"></div></div>");

    $('#roll_top').click(function () {

        $('html,body').animate({ scrollTop: '0px' }, 800)

    });

    $('#ct').click(function () {

        $('html,body').animate({ scrollTop: $('.ct').offset().top }, 800)

    });

    $(window).scroll(function (event) {

        if ($.browser.ie6) {

            $('#roll').css('top', $(this).scrollTop() + $(this).height() - 170)

        }

        if ($(this).scrollTop() > 260) {

            $('#roll').fadeIn()

        } else {

            $('#roll').fadeOut()

        }

    })

}

function IsLoads(src) {

    var isLoaded = false;

    var scripts = document.getElementsByTagName("script");

    for (i = 0; i < scripts.length; i++) {

        if (scripts[i].src && scripts[i].src.indexOf(src) != -1) {

            if (scripts[i].readyState == "loaded" || scripts[i].readyState == "complete") {

                isLoaded = true;

                break

            }

        }

    }

    return isLoaded

}