js秒数转化为时分秒

  var t1 =  setInterval(function(){
				payTime =_self.payTime--;
				 var intervalNextTime=payTime;
			    //转为时分秒
			    var h,m,s;
			      h = Math.floor(intervalNextTime/60/60%24);          
			      m = Math.floor(intervalNextTime/60%60);
			      s = Math.floor(intervalNextTime%60);  
			      console.log(h,m,s);
			       hh = (h<10)?'0'+h:h;
				    ss= 　(s<10)?'0'+s:s;
				    mm= 　(m<10)?'0'+m:m;
			    _self.formatPayTime=hh+":"+mm+":"+ss;
				console.log(_self.formatPayTime);
				if(_self.formatPayTime == '00:00:00'){
					window.clearInterval(t1);  
				}
			},1000);
  var t1 =  setInterval(function(){