模板:倒计时

var shijian=3600;
   var time=null;
   function start(){
        time=setInterval("count()",1000);
   }
   
   function count(){
       if(shijian<0){
           alert("time out");
           pause();
       }else{
           $("#time p").html(Math.floor(shijian/60)+":"+shijian%60);
           shijian--;
           console.info(time);
       }
   }
   function pause(){
       clearInterval(time);
   }
   function goOn(){
       time = setInterval("count()",1000);
   }