效果展示：
源代码：
<script language=javascript >
<!--
/* 调用方法：不能用onfocus，要用onclick
<input onclick="calendar(this)" name="s2" type="text" id="s2" style="100%;" />
*/
// 删除前后空格
String.prototype.trim = function(){return this.replace(/(^s+)|(s+$)/g,"");}
var cal_Width = 180;//定义日历显示的宽度，至少140
document.write("<html><body><div id='meizzCalendarLayer' style='position: absolute; z-index: 9999; " + (cal_Width+4).toString() + "px; height: 206px; display: none'>");
document.write("<iframe name='meizzCalendarIframe' scrolling='no' frameborder='0' width='100%' height='100%'></iframe></div></body></html>");
var WebCalendar = new cal_WebCalendar();
// 注意，如果你的页面有自己的onclick，一定要把这个嵌进去
document.onclick = function(e){
var ev = cal_SearchEvent();
if(ev)
e = ev;
if(e && e.srcElement)e = e.srcElement;
if(WebCalendar.eventSrc != e) cal_hiddenCalendar();
}
function cal_WebCalendar(){ //初始化日历的设置
this.regInfo = "WEB Calendar ver 3.0 关闭的快捷键：[Esc]";
this.dayShow = 38; //定义页面上要显示的天数,不能小于35,或大于39
this.daysMonth = new Array(31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31);
this.day = new Array(this.dayShow); //定义日历展示用的数组
this.dayObj = new Array(this.dayShow); //定义日期展示控件数组
this.dateStyle = null; //保存格式化后日期数组
this.objExport = null; //日历回传的显示控件
this.eventSrc = null; //日历显示的触发控件
this.inputDate = null; //转化外的输入的日期(d/m/yyyy)
this.thisYear = new Date().getFullYear(); //定义年的变量的初始值
this.thisMonth = new Date().getMonth()+ 1; //定义月的变量的初始值
this.thisDay = new Date().getDate(); //定义日的变量的初始值
this.today = this.thisDay +"/"+ this.thisMonth +"/"+ this.thisYear; //今天(d/m/yyyy)
this.iframe = window.frames["meizzCalendarIframe"]; //日历的 iframe 载体
this.calendar = cal_getObjectById("meizzCalendarLayer"); //日历的层
this.dateReg = ""; //日历格式验证的正则式
this.yearFall = 50; //定义显示的年份下拉框的年差值，如果今年是2000年，这里设置为50，就显示1950－2050
this.format = "yyyy-mm-dd"; //回传日期的格式
this.timeShow = false; //是否返回时间
this.drag = true; //是否允许拖动
this.darkColor = "#95B7F3"; //控件的暗色
this.lightColor = "#FFFFFF"; //控件的亮色
this.btnBgColor = "#E6E6FA"; //控件的按钮背景色
this.wordColor = "#000080"; //控件的文字颜色
this.wordDark = "#DCDCDC"; //控件的暗文字颜色
this.dayBgColor = "#F5F5FA"; //日期数字背景色
this.todayColor = "#FF0000"; //今天在日历上的标示背景色
this.DarkBorder = "#D4D0C8"; //日期显示的立体表达色
this.yearOption = "";
var yearNow = new Date().getFullYear();
yearNow = (yearNow <= 1000)? 1000 : ((yearNow >= 9999)? 9999 : yearNow);
this.yearMin = (yearNow - this.yearFall >= 1000) ? yearNow - this.yearFall : 1000;
this.yearMax = (yearNow + this.yearFall <= 9999) ? yearNow + this.yearFall : 9999;
this.yearMin = (this.yearMax == 9999) ? this.yearMax-this.yearFall*2 : this.yearMin;
this.yearMax = (this.yearMin == 1000) ? this.yearMin+this.yearFall*2 : this.yearMax;
for (var i=this.yearMin; i<=this.yearMax; i++) this.yearOption += "<option value='"+i+"'>"+i+"年</option>";
}
//主调函数 obj参数是为了兼容FireFox而增加的，因为FireFox不支持srcElement
function calendar(obj){
var e;
// debugger;
var ev = cal_SearchEvent();
if(ev)
e = ev;
if(e.srcElement)e = e.srcElement;
cal_writeIframe();
var o = WebCalendar.calendar.style;
WebCalendar.eventSrc = e;
if (arguments.length == 0)
WebCalendar.objExport = e;
else
WebCalendar.objExport = eval(arguments[0]);
WebCalendar.iframe.document.getElementById('tableWeek').style.cursor = WebCalendar.drag ? "move" : "default";
if(!e.offsetTop && arguments[0]){
e = arguments[0];
}
var t = e.offsetTop!=undefined?e.offsetTop:e.clientY;
var h = e.clientHeight!=undefined?e.clientHeight:0;
var l = e.offsetLeft!=undefined?e.offsetLeft:e.clientX;
var p = e.type;
while (e = e.offsetParent){
if(e.offsetTop)t += e.offsetTop;
if(e.offsetLeft)l += e.offsetLeft;
}
o.display = ""; WebCalendar.iframe.document.body.focus();
var cw = WebCalendar.calendar.clientWidth, ch = WebCalendar.calendar.clientHeight;
var dw = document.body.clientWidth, dl = document.body.scrollLeft, dt = document.body.scrollTop;
if (document.body.clientHeight + dt - t - h >= ch)
o.top = (p=="image")? (t + h)+'px' : (t + h + 6)+'px';
else
o.top = (t - dt < ch) ? ((p=="image")? (t + h)+'px' : (t + h + 6)+'px') : (t - ch)+'px';
if (dw + dl - l >= cw)
o.left = l+"px";
else
o.left = (dw >= cw) ? (dw - cw + dl)+"px" : dl+"px";
if (!WebCalendar.timeShow) WebCalendar.dateReg = /^(d{1,4})(-|/)(d{1,2})2(d{1,2})$/;
else WebCalendar.dateReg = /^(d{1,4})(-|/)(d{1,2})2(d{1,2}) (d{1,2}):(d{1,2}):(d{1,2})$/;
try{
if (WebCalendar.objExport.value.trim() != ""){
WebCalendar.dateStyle = WebCalendar.objExport.value.trim().match(WebCalendar.dateReg);
if (WebCalendar.dateStyle == null)
{
WebCalendar.thisYear = new Date().getFullYear();
WebCalendar.thisMonth = new Date().getMonth()+ 1;
WebCalendar.thisDay = new Date().getDate();
alert("原文本框里的日期有错误！
可能与你定义的显示时分秒有冲突！");
cal_writeCalendar(); return false;
}
else
{
WebCalendar.thisYear = parseInt(WebCalendar.dateStyle[1], 10);
WebCalendar.thisMonth = parseInt(WebCalendar.dateStyle[3], 10);
WebCalendar.thisDay = parseInt(WebCalendar.dateStyle[4], 10);
WebCalendar.inputDate = parseInt(WebCalendar.thisDay, 10) +"/"+ parseInt(WebCalendar.thisMonth, 10) +"/"+
parseInt(WebCalendar.thisYear, 10); cal_writeCalendar();
}
} else {
WebCalendar.thisYear = new Date().getFullYear();
WebCalendar.thisMonth = new Date().getMonth()+ 1;
WebCalendar.thisDay = new Date().getDate();
cal_writeCalendar();
}
} catch(e) {
WebCalendar.thisYear = new Date().getFullYear();
WebCalendar.thisMonth = new Date().getMonth()+ 1;
WebCalendar.thisDay = new Date().getDate();
cal_writeCalendar();
}
}
function cal_writeIframe(){
var strIframe = "<html><head>
<meta http-equiv='Content-Type' content='text/html; charset=gb2312'>
<style>"+
"*{font-size: 12px; font-family: 宋体}"+
".bg{ color: "+ WebCalendar.lightColor +"; cursor: default; background-color: "+ WebCalendar.darkColor +";}"+
"table#tableMain{ "+ (cal_Width+2).toString() +"px; height: 180px;}"+
"table#tableWeek td{ 14%;color: "+ WebCalendar.lightColor +";}"+
"table#tableDay td{ 14%;font-weight: bold;}"+
"td#meizzYearHead, td#meizzYearMonth{color: "+ WebCalendar.wordColor +"}"+
".out { height:19px;text-align: center; border-top: 1px solid "+ WebCalendar.DarkBorder +"; border-left: 1px solid "+ WebCalendar.DarkBorder +";"+
"border-right: 1px solid "+ WebCalendar.lightColor +"; border-bottom: 1px solid "+ WebCalendar.lightColor +";}"+
".over{ text-align: center; border-top: 1px solid #FFFFFF; border-left: 1px solid #FFFFFF;"+
"border-bottom: 1px solid "+ WebCalendar.DarkBorder +"; border-right: 1px solid "+ WebCalendar.DarkBorder +"}"+
"input{ border: 1px solid "+ WebCalendar.darkColor +"; padding-top: 1px; height: 18px; cursor: hand;"+
" color:"+ WebCalendar.wordColor +"; background-color: "+ WebCalendar.btnBgColor +"}"+
"
</style></head>
<body onselectstart='return false' style='margin: 0px' oncontextmenu='return false'>
<form name=meizz>
";
if (WebCalendar.drag){
strIframe += "<scr"+"ipt type='text/javascript'>
"+
"var drag=false, cx=0, cy=0, o = parent.WebCalendar.calendar; " +
"document.onmousemove=function(evt){
"+
"if(parent.WebCalendar.drag && drag){if(o.style.left=='')o.style.left=0+'px'; if(o.style.top=='')o.style.top=0+'px';"+
"o.style.left = (parseInt(o.style.left,10) + cal_SearchEvent().clientX-cx)+'px';"+
"o.style.top = (parseInt(o.style.top,10) + cal_SearchEvent().clientY-cy)+'px';}}
"+
"document.onkeydown=function(evt){switch(cal_SearchEvent().keyCode){ case 27 : parent.cal_hiddenCalendar(); break;"+
"case 37 : parent.cal_prevM(); break; case 38 : parent.cal_prevY(); break; case 39 : parent.cal_nextM(); break; case 40 : parent.cal_nextY(); break;"+
"case 84 : document.forms[0].today.click(); break;} " +
"try{cal_SearchEvent().keyCode = 0; cal_SearchEvent().returnValue= false;}catch(ee){}}
"+
"function dragStart(){cx=cal_SearchEvent().clientX; cy=cal_SearchEvent().clientY; drag=true;}" +
"function cal_SearchEvent(){if(document.all || window.event){return window.event;}var func=cal_SearchEvent.caller;while(func!=null){var arg0=func.arguments[0];if(arg0){var tmp = arg0.constructor.toString();if(tmp.indexOf('Event')>=0){return arg0;}}func=func.caller;}return null;}" +
"
</scr"+"ipt>"
}
strIframe += "<table id=tableMain class="bg" border=0 cellspacing=2 cellpadding=0>"+
" <tbody><tr><td width='"+ cal_Width +"px' height='19px' bgcolor='"+ WebCalendar.lightColor +"'>"+
" <table width='"+ cal_Width +"px' id='tableHead' border='0' cellspacing='1' cellpadding='0'><tbody><tr align='center'>"+
" <td width='10%' height='19px' class='bg' title='向前翻 1 月 快捷键：←' style='cursor: hand' onclick='parent.cal_prevM()'><b><</b></td>"+
" <td width='45%' id=meizzYearHead "+
" onmouseover='this.bgColor=parent.WebCalendar.darkColor; this.style.color=parent.WebCalendar.lightColor'"+
" onmouseout='this.bgColor=parent.WebCalendar.lightColor; this.style.color=parent.WebCalendar.wordColor'>" +
"<select name=tmpYearSelect onblur='parent.cal_hiddenSelect(this)' style='100%;'"+
" onchange='parent.WebCalendar.thisYear =this.value; parent.cal_hiddenSelect(this); parent.cal_writeCalendar();'>";
// var yearNow = new Date().getFullYear();
// yearNow = (yearNow <= 1000)? 1000 : ((yearNow >= 9999)? 9999 : yearNow);
// var yearMin = (yearNow - WebCalendar.yearFall >= 1000) ? yearNow - WebCalendar.yearFall : 1000;
// var yearMax = (yearNow + WebCalendar.yearFall <= 9999) ? yearNow + WebCalendar.yearFall : 9999;
// yearMin = (yearMax == 9999) ? yearMax-WebCalendar.yearFall*2 : yearMin;
// yearMax = (yearMin == 1000) ? yearMin+WebCalendar.yearFall*2 : yearMax;
// for (var i=yearMin; i<=yearMax; i++) strIframe += "<option value='"+i+"'>"+i+"年</option>";
strIframe += WebCalendar.yearOption + "</select>"+
"</td>"+
" <td width='35%' id=meizzYearMonth "+
" onmouseover='this.bgColor=parent.WebCalendar.darkColor; this.style.color=parent.WebCalendar.lightColor'"+
" onmouseout='this.bgColor=parent.WebCalendar.lightColor; this.style.color=parent.WebCalendar.wordColor'>" +
"<select name=tmpMonthSelect onblur='parent.cal_hiddenSelect(this)' style='100%;'" +
" onchange='parent.WebCalendar.thisMonth=this.value; parent.cal_hiddenSelect(this); parent.cal_writeCalendar();'>";
for (var i=1; i<13; i++) strIframe += "<option value='"+i+"'>"+i+"月</option>";
strIframe += "</select>"+
"</td>"+
" <td width='10%' class="bg" title='向后翻 1 月 快捷键：→' onclick='parent.cal_nextM()' style='cursor: hand'><b>></b></td></tr></tbody></table>"+
"</td></tr><tr><td height='20px'>"+
"<table id=tableWeek border=1 width='"+ cal_Width +"px' cellpadding=0 cellspacing=0 ";
if(WebCalendar.drag){
strIframe += "onmousedown='dragStart()' onmouseup='drag=false' ";
}
strIframe += " borderColorLight='"+ WebCalendar.darkColor +"' borderColorDark='"+ WebCalendar.lightColor +"'>"+
" <tbody><tr align=center><td height='20px'>日</td><td>一</td><td>二</td><td>三</td><td>四</td><td>五</td><td>六</td></tr></tbody></table>"+
"</td></tr><tr><td valign=top width='"+ cal_Width +"px' bgcolor='"+ WebCalendar.lightColor +"'>"+
" <table id=tableDay height='120px' width='"+ cal_Width +"px' border=0 cellspacing=1 cellpadding=0><tbody>";
for(var x=0; x<5; x++){
strIframe += "<tr>";
for(var y=0; y<7; y++)
strIframe += "<td class="out" id='meizzDay"+ (x*7+y) +"'></td>";
strIframe += "</tr>";
}
strIframe += "<tr>";
for(var x=35; x<WebCalendar.dayShow; x++)
strIframe += "<td class="out" id='meizzDay"+ x +"'></td>";
strIframe +="<td colspan="+(42-WebCalendar.dayShow).toString()+" class="out" style='text-align:center;' title='"+ WebCalendar.regInfo +"'>" +
"<input style=' background-color: " + WebCalendar.btnBgColor +";cursor: hand; padding-top: 2px; 44%;height:19px;' onfocus='this.blur()'"+
" type=button value='清空' onclick='parent.WebCalendar.objExport.value="";parent.cal_hiddenCalendar()'>" +
" " +
"<input style=' background-color: " + WebCalendar.btnBgColor +";cursor: hand; padding-top: 2px; 43%;height:19px;' onfocus='this.blur()'"+
" type=button value='关闭' onclick='parent.cal_hiddenCalendar()'>" +
"</td></tr></tbody></table>"+
"</td></tr><tr><td height='20px' width='"+ cal_Width +"px' bgcolor='"+ WebCalendar.lightColor +"' style='vertical-align:top;'>"+
" <table border=0 cellpadding=1 cellspacing=0 width='"+ cal_Width +"px'>"+
" <tbody><tr><td><input name=prevYear title='向前翻 1 年 快捷键：↑' onclick='parent.cal_prevY()' type=button value='<<'"+
" onfocus='this.blur()' style='25px;meizz:expression(this.disabled=parent.WebCalendar.thisYear==1000)'> <input"+
" onfocus='this.blur()' name=prevMonth title='向前翻 1 月 快捷键：←' onclick='parent.cal_prevM()' type=button value='< ' style='22px;'>"+
" </td><td align=center><input name=today type=button value='今天' onfocus='this.blur()' style=' 50px;' title='当前日期 快捷键：T'"+
" onclick="parent.cal_returnDate(new Date().getDate() +'/'+ (new Date().getMonth() +1) +'/'+ new Date().getFullYear())">"+
" </td><td align=right><input title='向后翻 1 月 快捷键：→' name=nextMonth onclick='parent.cal_nextM()' type=button value=' >'"+
" onfocus='this.blur()' style='22px;'> <input name=nextYear title='向后翻 1 年 快捷键：↓' onclick='parent.cal_nextY()' type=button value='>>'"+
" onfocus='this.blur()' style='25px;meizz:expression(this.disabled=parent.WebCalendar.thisYear==9999)'></td></tr></tbody></table>"+
"</td></tr></tbody></table></form></body></html>";
with(WebCalendar.iframe)
{
document.writeln(strIframe); document.close();
for(var i=0; i<WebCalendar.dayShow; i++)
{
WebCalendar.dayObj[i] = document.getElementById("meizzDay"+ i);
WebCalendar.dayObj[i].onmouseover = cal_dayMouseOver;
WebCalendar.dayObj[i].onmouseout = cal_dayMouseOut;
WebCalendar.dayObj[i].onclick = cal_returnDate;
}
}
}
function cal_MonthSelect(){ //月份的下拉框
var m = isNaN(parseInt(WebCalendar.thisMonth, 10)) ? new Date().getMonth() + 1 : parseInt(WebCalendar.thisMonth, 10);
var e = WebCalendar.iframe.document.forms[0].tmpMonthSelect;
e.value = m; //e.focus();
//window.status = e.style.left;
}
function cal_YearSelect(){ //年份的下拉框
var e = WebCalendar.iframe.document.forms[0].tmpYearSelect;
var y = isNaN(parseInt(WebCalendar.thisYear, 10)) ? new Date().getFullYear() : parseInt(WebCalendar.thisYear, 10);
if(y < WebCalendar.yearMin || y > WebCalendar.yearMax){
var html = e.innerHTML;
var optn = document.createElement("OPTION");
if(y < WebCalendar.yearMin){
e.insertBefore(optn, e.options[0]);
WebCalendar.yearMin--;
}else{
e.appendChild(optn);
WebCalendar.yearMax++;
}
optn.text = y+"年";
optn.value = y;
WebCalendar.yearOption = e.innerHTML;
}
e.value = y; //e.focus();
// if(e.value == "")
// {
// e.value = new Date().getFullYear();
// WebCalendar.thisYear = e.value;
// }
}
function cal_prevM(){ //往前翻月份
WebCalendar.thisDay = 1;
if (WebCalendar.thisMonth==1)
{
WebCalendar.thisYear--;
WebCalendar.thisMonth=13;
}
WebCalendar.thisMonth--; cal_writeCalendar();
}
function cal_nextM(){ //往后翻月份
WebCalendar.thisDay = 1;
if (WebCalendar.thisMonth==12)
{
WebCalendar.thisYear++;
WebCalendar.thisMonth=0;
}
WebCalendar.thisMonth++; cal_writeCalendar();
}
function cal_prevY(){//往前翻 Year
WebCalendar.thisDay = 1; WebCalendar.thisYear--; cal_writeCalendar();
}
function cal_nextY(){//往后翻 Year
WebCalendar.thisDay = 1; WebCalendar.thisYear++; cal_writeCalendar();
}
function cal_hiddenSelect(e){
//for(var i=e.options.length; i>-1; i--)e.options.remove(i); e.style.display="none";
}
function cal_getObjectById(id){
if(document.all) return(eval("document.all."+ id));
var tmp = document.getElementById(id);
if(tmp)
return tmp;
return(eval(id));
}
function cal_hiddenCalendar(){
cal_getObjectById("meizzCalendarLayer").style.display = "none";
}
function cal_appendZero(n){//日期自动补零程序
return(("00"+ n).substr(("00"+ n).length-2));
}
function cal_dayMouseOver(){
this.className = "over";
this.style.backgroundColor = WebCalendar.darkColor;
if(WebCalendar.day[this.id.substr(8)].split("/")[1] == WebCalendar.thisMonth)
this.style.color = WebCalendar.lightColor;
}
function cal_dayMouseOut(){
this.className = "out"; var d = WebCalendar.day[this.id.substr(8)], a = d.split("/");
// chrome不支持removeAttribute方法
//this.style.removeAttribute('backgroundColor');
this.style.backgroundColor = '';//WebCalendar.dayBgColor;
if(a[1] == WebCalendar.thisMonth && d != WebCalendar.today)
{
if(WebCalendar.dateStyle && a[0] == parseInt(WebCalendar.dateStyle[4], 10))
this.style.color = WebCalendar.lightColor;
this.style.color = WebCalendar.wordColor;
}
}
function cal_writeCalendar(){ //对日历显示的数据的处理程序
var y = WebCalendar.thisYear;
var m = WebCalendar.thisMonth;
var d = WebCalendar.thisDay;
WebCalendar.daysMonth[1] = (0==y%4 && (y%100!=0 || y%400==0)) ? 29 : 28;
if (!(y<=9999 && y >= 1000 && parseInt(m, 10)>0 && parseInt(m, 10)<13 && parseInt(d, 10)>0)){
//alert("对不起，你输入了错误的日期！");
WebCalendar.thisYear = new Date().getFullYear();
WebCalendar.thisMonth = new Date().getMonth()+ 1;
WebCalendar.thisDay = new Date().getDate(); }
y = WebCalendar.thisYear;
m = WebCalendar.thisMonth;
d = WebCalendar.thisDay;
cal_YearSelect(parseInt(y, 10));
cal_MonthSelect(parseInt(m,10));
//WebCalendar.iframe.meizzYearHead.innerText = y +" 年";
//WebCalendar.iframe.meizzYearMonth.innerText = parseInt(m, 10) +" 月";
WebCalendar.daysMonth[1] = (0==y%4 && (y%100!=0 || y%400==0)) ? 29 : 28; //闰年二月为29天
var w = new Date(y, m-1, 1).getDay();
var prevDays = m==1 ? WebCalendar.daysMonth[11] : WebCalendar.daysMonth[m-2];
for(var i=(w-1); i>=0; i--) //这三个 for 循环为日历赋数据源（数组 WebCalendar.day）格式是 d/m/yyyy
{
WebCalendar.day[i] = prevDays +"/"+ (parseInt(m, 10)-1) +"/"+ y;
if(m==1) WebCalendar.day[i] = prevDays +"/"+ 12 +"/"+ (parseInt(y, 10)-1);
prevDays--;
}
for(var i=1; i<=WebCalendar.daysMonth[m-1]; i++) WebCalendar.day[i+w-1] = i +"/"+ m +"/"+ y;
for(var i=1; i<WebCalendar.dayShow-w-WebCalendar.daysMonth[m-1]+1; i++)
{
WebCalendar.day[WebCalendar.daysMonth[m-1]+w-1+i] = i +"/"+ (parseInt(m, 10)+1) +"/"+ y;
if(m==12) WebCalendar.day[WebCalendar.daysMonth[m-1]+w-1+i] = i +"/"+ 1 +"/"+ (parseInt(y, 10)+1);
}
for(var i=0; i<WebCalendar.dayShow; i++) //这个循环是根据源数组写到日历里显示
{
var a = WebCalendar.day[i].split("/");
WebCalendar.dayObj[i].innerHTML = a[0];
WebCalendar.dayObj[i].title = a[2] +"-"+ cal_appendZero(a[1]) +"-"+ cal_appendZero(a[0]);
WebCalendar.dayObj[i].bgColor = WebCalendar.dayBgColor;
WebCalendar.dayObj[i].style.color = WebCalendar.wordColor;
if ((i<10 && parseInt(WebCalendar.day[i], 10)>20) || (i>27 && parseInt(WebCalendar.day[i], 10)<12))
WebCalendar.dayObj[i].style.color = WebCalendar.wordDark;
if (WebCalendar.inputDate==WebCalendar.day[i]) //设置输入框里的日期在日历上的颜色
{WebCalendar.dayObj[i].bgColor = WebCalendar.darkColor; WebCalendar.dayObj[i].style.color = WebCalendar.lightColor;}
if (WebCalendar.day[i] == WebCalendar.today) //设置今天在日历上反应出来的颜色
{WebCalendar.dayObj[i].bgColor = WebCalendar.todayColor; WebCalendar.dayObj[i].style.color = WebCalendar.lightColor;}
}
}
function cal_returnDate(){ //根据日期格式等返回用户选定的日期
if(WebCalendar.objExport)
{
//chrome下，onclick调用时，会传递一个参数：[object MouseEvent]
//var a = (arguments.length==0) ? WebCalendar.day[this.id.substr(8)].split("/") : arguments[0].split("/");
var a;
if(arguments.length==0 || arguments[0].constructor != String)
a = WebCalendar.day[this.id.substr(8)].split("/");
else
a = arguments[0].split("/");
var d = WebCalendar.format.match(/^(w{4})(-|/)(w{1,2})2(w{1,2})$/);
if(d==null){alert("你设定的日期输出格式不对！
请重新定义 WebCalendar.format ！"); return false;}
var flag = d[3].length==2 || d[4].length==2; //判断返回的日期格式是否要补零
var returnValue = flag ? a[2] +d[2]+ cal_appendZero(a[1]) +d[2]+ cal_appendZero(a[0]) : a[2] +d[2]+ a[1] +d[2]+ a[0];
if(WebCalendar.timeShow)
{
var h = new Date().getHours(), m = new Date().getMinutes(), s = new Date().getSeconds();
returnValue += flag ? " "+ cal_appendZero(h) +":"+ cal_appendZero(m) +":"+ cal_appendZero(s) : " "+ h +":"+ m +":"+ s;
}
WebCalendar.objExport.value = returnValue;
cal_hiddenCalendar();
}
}
// 用于兼容浏览器，递归找出event事件对象
function cal_SearchEvent(){
//IE
if(document.all || window.event){
return window.event;
}
//针对FireFox，通过递归调用函数，来得到event
var func=cal_SearchEvent.caller;
while(func!=null){
var arg0=func.arguments[0];
if(arg0){
var tmp = arg0.constructor.toString();
if(tmp.indexOf("Event") >= 0){//tmp==Event || tmp == MouseEvent || tmp == KeyboardEvent){
return arg0;
}
}
func=func.caller;
}
return null;
}
//-->
</script>
<input name="s1" type="text" id="s1" value='2007-10-41' onclick="calendar(this)" style="100%;" />
<input name="s2" type="text" id="s2" onclick="calendar(this)" style="100%;" />
来自：http://zhurd.blog.163.com/blog/static/210322169201282873130279/