// JScript 文件
addLoadEvent(topRollAd_Load);

var topRoll;
var timer;

function rollMeDown()
{
    var nowTop = topRoll.offsetTop;
    var maxTop = 0;
    
    if (nowTop >= maxTop)
    {
        window.clearInterval(timer);
        timer = setInterval("rollMeWait()",10000);
    }
    else
    {
        nowTop += 5;
        topRoll.style.marginTop = eval(nowTop) + "px";
    }
}

function rollMeWait()
{
    window.clearInterval(timer);
    timer = setInterval("rollMeUp()",10);
}

function rollMeUp()
{
    var nowTop = topRoll.offsetTop;
    var minTop = 0 - topRoll.offsetHeight;
    
    if (nowTop <= minTop)
    {
        window.clearInterval(timer);
    }
    else
    {
        nowTop -= 5;
        topRoll.style.marginTop = eval(nowTop) + "px";
    }
}

function topRollAd_Load()
{
    topRoll = document.getElementById("topRollAd");
    topRoll.style.margin = "0px";
    topRoll.style.overflow = "hidden";
    topRoll.style.display = "block";
    topRoll.style.marginTop = "-200px"
    topRoll.align = "center";
    topRoll.innerHTML = "<a href='http://www.ccfei.com/hyxc/20111201/20111201-C.html' target='_blank'><img src='/imgccfei/home/jlbd_980x150.GIF' alt=''></a>";
    
    timer = setInterval("rollMeDown()",10);
}

//window.onload
function addLoadEvent(func)
{
    var oldonload = window.onload;
    if (typeof window.onload != 'function')
    {
        window.onload = func;
    }
    else
    {
        window.onload = function()
        {
            oldonload();
            func();
        }
    }
}