【图】javascript版的日期输入控件(1)

<!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;