time

/**
 * 时间对象的格式化;
 */
 Date.prototype.format = function(format){
  /*
   * eg:format="YYYY-MM-dd hh:mm:ss";
   */
  var o = {
   "M+" :  this.getMonth()+1,  //month
   "d+" :  this.getDate(),     //day
   "h+" :  this.getHours(),    //hour
       "m+" :  this.getMinutes(),  //minute
       "s+" :  this.getSeconds(), //second
       "q+" :  Math.floor((this.getMonth()+3)/3),  //quarter
       "S"  :  this.getMilliseconds() //millisecond
    }

    if(/(y+)/.test(format)) {
     format = format.replace(RegExp.$1, (this.getFullYear()+"").substr(4 - 

RegExp.$1.length));
    }
  
    for(var k in o) {
     if(new RegExp("("+ k +")").test(format)) {
       format = format.replace(RegExp.$1, RegExp.$1.length==1 ? o[k] : ("00"+ o

[k]).substr((""+ o[k]).length));
     }
    }
  return format;
 }