function getnowdata() 

{

    var day = "";
    var month = "";
    var ampm = "";
    var ampmhour = "";
    var myweekday = "";
    var year = "";

    //设置marquee的宽度 
    var marqueewidth = 400
    //设置marquee的高度 
    var marqueeheight = 20
    //设置marquee滚动的速度
    var speed = 2

    mydate = new Date();
    myweekday = mydate.getDay();
    mymonth = mydate.getMonth() + 1;
    myday = mydate.getDate();
    myyear = mydate.getYear();
    year = (myyear > 200) ? myyear : 1900 + myyear;
    if (myweekday == 0)
        weekday = " 星期日 ";
    else if (myweekday == 1)
        weekday = " 星期一 ";
    else if (myweekday == 2)
        weekday = " 星期二 ";
    else if (myweekday == 3)
        weekday = " 星期三 ";
    else if (myweekday == 4)
        weekday = " 星期四 ";
    else if (myweekday == 5)
        weekday = " 星期五 ";
    else if (myweekday == 6)
        weekday = " 星期六 ";
    document.write('<marquee scrollAmount=' + speed + ' style="width:' + marqueewidth + '">' + ("中南大学护理学院欢迎您！               今天是：" + year + "年" + mymonth + "月" + myday + "日 " + weekday) + '</marquee>');

}