function getDateAndWeek()
{
    var ret="";
    todayDate = new Date();
    date = todayDate.getDate();
    month= todayDate.getMonth() +1;
    year= todayDate.getYear();
    if(navigator.appName == "Netscape")
    {
        ret=1900+year;
        ret+="年"+month+"月"+date+"日  ";
    }
    if(navigator.appVersion.indexOf("MSIE") != -1)
    {
        ret=year+"年"+month+"月"+date+"日  ";
    }
    if (todayDate.getDay() == 5) ret+="星期五";
    if (todayDate.getDay() == 6) ret+="星期六";
    if (todayDate.getDay() == 0) ret+="星期日";
    if (todayDate.getDay() == 1) ret+="星期一";
    if (todayDate.getDay() == 2) ret+="星期二";
    if (todayDate.getDay() == 3) ret+="星期三";
    if (todayDate.getDay() == 4) ret+="星期四";
    var w=document.getElementById("crumb");
    w.innerHTML="<span style='float:left;'>"+ret +"</span>";
}