＜!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"＞
  ＜HTML＞
  ＜HEAD＞
  ＜TITLE＞ New Document ＜/TITLE＞
  ＜META NAME="Generator" CONTENT="Microsoft FrontPage 5.0"＞
  ＜META NAME="Author" CONTENT="zhaoweiwei"＞
  ＜META NAME="Keywords" CONTENT="birthday_input"＞
  ＜META NAME="Description" CONTENT="日起输入控件"＞
  ＜script＞
  function showdb()  //显示控件/隐藏空间
  {
    var CurrentDate=new Date();
    var CYear=CurrentDate.getFullYear();
    var CMonth=CurrentDate.getMonth();
    var CDay=CurrentDate.getDay();
 
    var a=document.getElementById("input_birth");
 
    var obj_year=document.getElementById("year");  //当展开控件时自动取到当前时间（客户端）
    obj_year.innerText=CYear;
    var obj_month=document.getElementById("month");
    obj_month.innerText=CMonth+1;
 
    var s=new Date(CYear,CMonth,1);
    var startDay=s.getDay();   //日期起始数字
    var numDays=numberOfDays(CMonth,CYear);  //本月天数
    var day=document.getElementsByName("day");
    for(var j=1;j＜=numDays;j++)  //插入日期
  {
    day[startDay+j-1].innerText=j;
  }
    if(a.style.visibility=='visible')
    {
     a.style.visibility='hidden';
    }
  else
  {
    a.style.visibility='visible';
  }
 
  }
  function addyear()
   {
   var obj_year=document.getElementById("year");
   var obj_month=document.getElementById("month");

   var num_year=obj_year.innerText;