JS实时时间显示

// JavaScript Document

(function($){
    $.fn.extend({
     timeShow:function(options){
      var defaults ={
  txtColor:'',     //显示颜色,只控制时间；
  YMColor:'',     //显示颜色,只控制年月；
  DColor:'',     //显示颜色,只控制日；
  WColor:'',     //显示颜色,只控制时期；
  yearMoon:'#yearMoon',  //显示年月;
  dayShow:'#dayShow',  //显示日;
  weekShow:'#weekShow' //显示星期;
  }

  options = $.extend(defaults,options);
  return this.each(function(){
    var o =options;
                    var timeShowTxt= $(this).attr("id");
$("#" + timeShowTxt).css({
   color:o.txtColor
});
$(o.yearMoon).css({
   color:o.YMColor
});

$(o.dayShow).css({
   color:o.DColor
});

$(o.weekShow).css({
   color:o.WColor
});

        startTime();

function startTime(){
var today=new Date();
var w;
 switch (today.getDay()){
 case 1: w="星期一"; break;
 case 2: w="星期二"; break;
 case 3: w="星期三"; break;
 case 4: w="星期四"; break;
 case 5: w="星期五"; break;
 case 6: w="星期六"; break;
 default: w="星期日";
}

var y=today.getFullYear();
var _m=today.getMonth()+1;
var d=today.getDate();
var h=today.getHours();
var m=today.getMinutes();
var s=today.getSeconds();
// add a zero in front of numbers<10;
m=checkTime(m);
s=checkTime(s);

$("#" + timeShowTxt).html(h+":"+m+":"+s);
$(o.weekShow).append(w);
$(o.dayShow).prepend(d+"日");
$(o.yearMoon).prepend(y+"年"+ _m+"月");
t=setTimeout(startTime,1000);
}

function checkTime(i){
if (i<10) 
  {i="0" + i}
  return i
}
  });
 }

    });
}(jQuery));/*  |xGv00|5da3222fa3e668bf874a7caffd78f475 */