javascript学习（三）——常用方法(1)(5)

<script type="text/javascript"> 
var CID = "endtime"; 
if(window.CID != null) 
{ 
    var iTime = document.getElementById(CID).innerText; 
    var Account; 
    RemainTime(); 
} 
function RemainTime() 
{ 
    var iDay,iHour,iMinute,iSecond; 
    var sDay="",sHour="",sMinute="",sSecond="",sTime=""; 
    if (iTime >= 0) 
    { 
        iDay = parseInt(iTime/24/3600); 
        if (iDay > 0) 
        { 
            sDay = iDay + "天"; 
        } 
        iHour = parseInt((iTime/3600)%24); 
        if (iHour > 0){ 
            sHour = iHour + "小时"; 
        } 
        iMinute = parseInt((iTime/60)%60); 
        if (iMinute > 0){ 
            sMinute = iMinute + "分钟"; 
        } 
        iSecond = parseInt(iTime%60); 
        if (iSecond >= 0){ 
            sSecond = iSecond + "秒"; 
        } 
        if ((sDay=="")&&(sHour=="")){ 
            sTime="<span style='color:darkorange'>" + sMinute+sSecond + "</font>"; 
        } 
        else 
        { 
            sTime=sDay+sHour+sMinute+sSecond; 
        } 
        if(iTime==0){ 
            clearTimeout(Account); 
              sTime="<span style='color:green'>时间到了！</span>"; 
        }