javascript高考倒计时代码

var timedate = new Date("June 7,2013");   
var times = "2013年高考";   
var now = new Date();   
var date = timedate.getTime() - now.getTime();   
var time = Math.floor(date / (1000 * 60 * 60 * 24)) + 1;
   
var s_time = String(time);
var s_time_leng = s_time.length;

if(s_time_leng == 2){
   $("#time1").addClass("time" + s_time.substr(0,1));
   $("#time2").addClass("time" + s_time.substr(1,1));
}
else if(s_time_leng == 1){
  $("#time2").addClass("time" + s_time.substr(0,1));
}