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javascript版的日期输入控件

<!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;

obj_year.innerText=parseInt(num_year)+1; //年数增加



displayCalendar(obj_month.innerText-1,obj_year.innerText);




}

function plusyear()

{



var obj_year=document.getElementById("year");

var obj_month=document.getElementById("month");



var num_year=obj_year.innerText;

obj_year.innerText=parseInt(num_year)-1; //年数减少



displayCalendar(obj_month.innerText-1,obj_year.innerText);




}

function addmonth()

{



var obj_month=document.getElementById("month");

var obj_year=document.getElementById("year");



if(parseInt(obj_month.innerText)>=12) //月数增加到12时,年数相应增加1,月数从1开始

{

obj_month.innerText="0";

obj_year=document.getElementById("year");

var num_year=obj_year.innerText;

obj_year.innerText=parseInt(num_year)+1;

}



var num_month=obj_month.innerText;

obj_month.innerText=parseInt(num_month)+1; //月数增加



displayCalendar(obj_month.innerText-1,obj_year.innerText);




}

function plusmonth()

{



var obj_month=document.getElementById("month");

var obj_year=document.getElementById("year");



if(parseInt(obj_month.innerText)<=1) //月数减少到1时,年数相应减少1,月数从12开始

{

obj_month.innerText="13";

obj_year=document.getElementById("year");

var num_year=obj_year.innerText;

obj_year.innerText=parseInt(num_year)-1;

}



var num_month=obj_month.innerText;

obj_month.innerText=parseInt(num_month)-1; //月数减少



displayCalendar(obj_month.innerText-1,obj_year.innerText);




 

}


function numberOfDays(month,year) //取得每月天数,判断平年闰年

{

var numDays=new Array(31,28,31,30,31,30,31,31,30,31,30,31);

n=numDays[month];

if(month==1&&year%4==0) ++n;

return n;

}


function displayCalendar(month,year)

{


var d=new Date(year,month,1);

var startDay=d.getDay(); //日期起始数字

var numDays=numberOfDays(month,year); //本月天数



var day=document.getElementsByName("day");

for(var i=0;i<day.length;i++)

{

day[i].innerText="";

}

for(var j=1;j<=numDays;j++) //插入日期

{

day[startDay+j-1].innerText=j;

}



}

function writeDate(n)

{

document.writeln("<H3 ALIGN='CENTER'>"+n+"</H3>");

}


function add_day(year,month,day)

{

bd.birthdate.value=year+"-"+month+"-"+day;

}

</script>

</HEAD>


<BODY>

<form name="bd">

<input type="text" name="birthdate" size="20" readOnly><input type="button" value="..." onclick="showdb()">

</form>

<div id="input_birth" name="input_birth" style="visibility:hidden; width:239; height:128">

<table border="0" cellpadding="0" cellspacing="0" style="border-collapse: collapse" style="cursor:hand" bordercolor="#111111" width="100%" height="26">

<tr>

<td width="100%" colspan="3" height="26">&nbsp;&nbsp; <input type="button" value="&lt;&lt;" onclick="plusyear()" name="plusyear">

<input type="button" value="&lt;" onclick="plusmonth()" name="plusmonth">&nbsp; <font id="year">

</font>年<font id="month"></font>月

<input type="button" value="&gt;" onclick="addmonth()" name="addmonth">

<input type="button" value="&gt;&gt;" name="addyear" onclick="addyear()"></td>

</tr>

<tr>

<td width="100%" colspan="3" height="119" valign="top">

<table border="0" cellpadding="0" cellspacing="0" style="border-collapse: collapse" bordercolor="#111111" width="100%">

<tr>

<td width="14%" align="center"><b><font color="#FF0000">日</font></b></td>

<td width="14%" align="center"><b>一</b></td>

<td width="14%" align="center"><b>二</b></td>

<td width="14%" align="center"><b>三</b></td>

<td width="14%" align="center"><b>四</b></td>

<td width="15%" align="center"><b>五</b></td>

<td width="15%" align="center"><b><font color="#FF0000">六</font></b></td>

</tr>

<tr>

<td width="14%" align="center" id="day" onclick="add_day(year.innerText,month.innerText,this.innerText)"></td>

<td width="14%" align="center" id="day" onclick="add_day(year.innerText,month.innerText,this.innerText)"> </td>

<td width="14%" align="center" id="day" onclick="add_day(year.innerText,month.innerText,this.innerText)"> </td>

<td width="14%" align="center" id="day" onclick="add_day(year.innerText,month.innerText,this.innerText)"> </td>

<td width="14%" align="center" id="day" onclick="add_day(year.innerText,month.innerText,this.innerText)"> </td>

<td width="15%" align="center" id="day" onclick="add_day(year.innerText,month.innerText,this.innerText)"> </td>

<td width="15%" align="center" id="day" onclick="add_day(year.innerText,month.innerText,this.innerText)"> </td>

</tr>

<tr>

<td width="14%" align="center" id="day" onclick="add_day(year.innerText,month.innerText,this.innerText)"> </td>

<td width="14%" align="center" id="day" onclick="add_day(year.innerText,month.innerText,this.innerText)"> </td>

<td width="14%" align="center" id="day" onclick="add_day(year.innerText,month.innerText,this.innerText)"> </td>

<td width="14%" align="center" id="day" onclick="add_day(year.innerText,month.innerText,this.innerText)"> </td>

<td width="14%" align="center" id="day" onclick="add_day(year.innerText,month.innerText,this.innerText)"> </td>

<td width="15%" align="center" id="day" onclick="add_day(year.innerText,month.innerText,this.innerText)"> </td>

<td width="15%" align="center" id="day" onclick="add_day(year.innerText,month.innerText,this.innerText)"> </td>

</tr>

<tr>

<td width="14%" align="center" id="day" onclick="add_day(year.innerText,month.innerText,this.innerText)"> </td>

<td width="14%" align="center" id="day" onclick="add_day(year.innerText,month.innerText,this.innerText)"> </td>

<td width="14%" align="center" id="day" onclick="add_day(year.innerText,month.innerText,this.innerText)"> </td>

<td width="14%" align="center" id="day" onclick="add_day(year.innerText,month.innerText,this.innerText)"> </td>

<td width="14%" align="center" id="day" onclick="add_day(year.innerText,month.innerText,this.innerText)"> </td>

<td width="15%" align="center" id="day" onclick="add_day(year.innerText,month.innerText,this.innerText)"> </td>

<td width="15%" align="center" id="day" onclick="add_day(year.innerText,month.innerText,this.innerText)"> </td>

</tr>

<tr>

<td width="14%" align="center" id="day" onclick="add_day(year.innerText,month.innerText,this.innerText)"> </td>

<td width="14%" align="center" id="day" onclick="add_day(year.innerText,month.innerText,this.innerText)"> </td>

<td width="14%" align="center" id="day" onclick="add_day(year.innerText,month.innerText,this.innerText)"> </td>

<td width="14%" align="center" id="day" onclick="add_day(year.innerText,month.innerText,this.innerText)"> </td>

<td width="14%" align="center" id="day" onclick="add_day(year.innerText,month.innerText,this.innerText)"> </td>

<td width="15%" align="center" id="day" onclick="add_day(year.innerText,month.innerText,this.innerText)"> </td>

<td width="15%" align="center" id="day" onclick="add_day(year.innerText,month.innerText,this.innerText)"> </td>

</tr>

<tr>

<td width="14%" align="center" id="day" onclick="add_day(year.innerText,month.innerText,this.innerText)"> </td>

<td width="14%" align="center" id="day" onclick="add_day(year.innerText,month.innerText,this.innerText)"> </td>

<td width="14%" align="center" id="day" onclick="add_day(year.innerText,month.innerText,this.innerText)"> </td>

<td width="14%" align="center" id="day" onclick="add_day(year.innerText,month.innerText,this.innerText)"> </td>

<td width="14%" align="center" id="day" onclick="add_day(year.innerText,month.innerText,this.innerText)"> </td>

<td width="15%" align="center" id="day" onclick="add_day(year.innerText,month.innerText,this.innerText)"> </td>

<td width="15%" align="center" id="day" onclick="add_day(year.innerText,month.innerText,this.innerText)"> </td>

</tr>

<tr>

<td width="14%" align="center" id="day" onclick="add_day(year.innerText,month.innerText,this.innerText)"> </td>

<td width="14%" align="center" id="day" onclick="add_day(year.innerText,month.innerText,this.innerText)"> </td>

<td width="14%" align="center" id="day" onclick="add_day(year.innerText,month.innerText,this.innerText)"> </td>

<td width="14%" align="center" id="day" onclick="add_day(year.innerText,month.innerText,this.innerText)"> </td>

<td width="14%" align="center" id="day" onclick="add_day(year.innerText,month.innerText,this.innerText)"> </td>

<td width="15%" align="center" id="day" onclick="add_day(year.innerText,month.innerText,this.innerText)"> </td>

<td width="15%" align="center" id="day" onclick="add_day(year.innerText,month.innerText,this.innerText)"> </td>

</tr>

</table>

</td>

</tr>

<tr>

<td width="33%" height="1"></td>

<td width="33%" height="1"></td>

<td width="34%" height="1"></td>

</tr>

</table>

</div>

</BODY>

</HTML>

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