实现几秒后页面跳转

/*
   功能: 实现几秒后跳转页面 
*/


window.onload=function(){
    goTime();
}
var goUrl="member_add.jsp";

function goTime(){
    var time= parseInt(document.getElementById("timeId").innerHTML);
    time--;
    if(time==0){
        window.location=goUrl;
    }else{
        document.getElementById("timeId").innerHTML=time;
        setTimeout(goTime,1000);
    }
}