function TabTrun(name,name1,sum,currt,stylename) {
    for (var i = 1; i <= sum; i++) {
        document.getElementById(name + i).className = "";
        document.getElementById(name1 + i).style.display = 'none';
    }
    document.getElementById(name + currt).className = stylename;
    document.getElementById(name1 + currt).style.display = 'block';
}

var aa = function (id) {
    return "string" == typeof id ? document.getElementById(id) : id;
};

var Class = {
    create: function () {
        return function () {
            this.initialize.apply(this, arguments);
        }
    }
}

Object.extend = function (destination, source) {
    for (var property in source) {
        destination[property] = source[property];
    }
    return destination;
}

function addEventHandler(oTarget, sEventType, fnHandler) {
    if (oTarget.addEventListener) {
        oTarget.addEventListener(sEventType, fnHandler, false);
    } else if (oTarget.attachEvent) {
        oTarget.attachEvent("on" + sEventType, fnHandler);
    } else {
        oTarget["on" + sEventType] = fnHandler;
    }
};


var Scroller = Class.create();
Scroller.prototype = {
    initialize: function (idScroller, idScrollMid, options) {
        var oScroll = this, oScroller = aa(idScroller), oScrollMid = aa(idScrollMid);

        this.heightScroller = oScroller.offsetHeight;
        this.heightList = oScrollMid.offsetHeight;

        if (this.heightList <= this.heightScroller) return;

        oScroller.style.overflow = "hidden";
        oScrollMid.appendChild(oScrollMid.cloneNode(true));

        this.oScroller = oScroller;
        this.timer = null;

        this.SetOptions(options);

        this.side = 1; //1是上 -1是下
        switch (this.options.Side) {
            case "down":
                this.side = -1;
                break;
            case "up":
            default:
                this.side = 1;
        }

        addEventHandler(oScrollMid, "mouseover", function () { oScroll.Stop(); });
        addEventHandler(oScrollMid, "mouseout", function () { oScroll.Start(); });

        if (this.options.PauseStep <= 0 || this.options.PauseHeight <= 0) this.options.PauseStep = this.options.PauseHeight = 0;
        this.Pause = 0;

        this.Start();
    },
    //设置默认属性
    SetOptions: function (options) {
        this.options = {//默认值
            Step: 1, //每次变化的px量
            Time: 15, //速度(越大越慢)
            Side: "up", //滚动方向:"up"是上，"down"是下
            PauseHeight: 0, //隔多高停一次
            PauseStep: 3000//停顿时间(PauseHeight大于0该参数才有效)
        };
        Object.extend(this.options, options || {});
    },
    //滚动
    Scroll: function () {
        var iScroll = this.oScroller.scrollTop, iHeight = this.heightList, time = this.options.Time, oScroll = this, iStep = this.options.Step * this.side;

        if (this.side > 0) {
            if (iScroll >= (iHeight * 2 - this.heightScroller)) { iScroll -= iHeight; }
        } else {
            if (iScroll <= 0) { iScroll += iHeight; }
        }

        if (this.options.PauseHeight > 0) {
            if (this.Pause >= this.options.PauseHeight) {
                time = this.options.PauseStep;
                this.Pause = 0;
            } else {
                this.Pause += Math.abs(iStep);
                this.oScroller.scrollTop = iScroll + iStep;
            }
        } else { this.oScroller.scrollTop = iScroll + iStep; }

        this.timer = window.setTimeout(function () { oScroll.Scroll(); }, time);
    },
    //开始
    Start: function () {
        this.Scroll();
    },
    //停止
    Stop: function () {
        clearTimeout(this.timer);
    }
};



//设为首页
function Homepage() {

    if (document.all) {

        document.body.style.behavior = 'url(#default#homepage)';

        document.body.setHomePage(window.location.href);

    }

    else if (window.sidebar) {

        if (window.netscape) {

            try {

                netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");

            }

            catch (e) {

                alert("该操作被浏览器拒绝，如果想启用该功能，请在地址栏内输入 about:config,然后将项 signed.applets.codebase_principal_support 值该为true");

                history.go(-1);   //这里我用firefox测试的时候出错，我把它注释掉，改成 return false;



            }

        }

        var prefs = Components.classes['@mozilla.org/preferences-service;1'].getService(Components.interfaces.nsIPrefBranch);

        prefs.setCharPref('browser.startup.homepage', window.location.href);

    }

}


function Favorite(sURL, sTitle) {

    try {

        window.external.addFavorite(sURL, sTitle);

    }

    catch (e) {

        try {

            window.sidebar.addPanel(sTitle, sURL, "");

        }

        catch (e) {

            alert("加入收藏失败,请手动添加.");

        }

    }

}


function OpenIM() {
    var left = (screen.availWidth - 600) / 2;
    var top = screen.availHeight - 500 / 2;
    window.open('http://kf.boaifangchan.com', '博爱客户服务系统',
    'toolbar=no,location=no,directories=no,status=1,menubar=no,scrollbars=no,resizable=yes,width=600,height=500,left=' + left + ',top=' + top);
}