<html>
<head>
<title>JS日期选择器</title>
<script type="text/JavaScript">
function HS_DateAdd(interval, number, date) {
number = parseInt(number);
if (typeof (date) == "string") {
var date = new Date(date.split("-")[0], date.split("-")[1], date
.split("-")[2])
}
if (typeof (date) == "object") {
var date = date
}
switch (interval) {
case "y":
return new Date(date.getFullYear() + number, date.getMonth(), date
.getDate());
break;
case "m":
return new Date(date.getFullYear(), date.getMonth() + number,
checkDate(date.getFullYear(), date.getMonth() + number,
date.getDate()));
break;
case "d":
return new Date(date.getFullYear(), date.getMonth(), date.getDate()
+ number);
break;
case "w":
return new Date(date.getFullYear(), date.getMonth(), 7 * number
+ date.getDate());
break;
}
}
function checkDate(year, month, date) {
var enddate = [ "31", "28", "31", "30", "31", "30", "31", "31", "30",
"31", "30", "31" ];
var returnDate = "";
if (year % 4 == 0) {
enddate[1] = "29"
}
if (date > enddate[month]) {
returnDate = enddate[month]
} else {
returnDate = date
}
return returnDate;
}
function WeekDay(date) {
var theDate;
if (typeof (date) == "string") {
theDate = new Date(date.split("-")[0], date.split("-")[1], date
.split("-")[2]);
}
if (typeof (date) == "object") {
theDate = date
}
return theDate.getDay();
}
function HS_calender() {
var lis = "";
var style = "";
style += "<style type='text/css'>";
style += ".calender { width:170px; height:auto; font-size:12px; margin-right:14px; background:url(calenderbg.gif) no-repeat right center #fff; border:1px solid #397EAE; padding:1px}";
style += ".calender ul {list-style-type:none; margin:0; padding:0;}";
style += ".calender .day { height:20px;}";
style += ".calender .day li,.calender .date li{ float:left; width:14%; height:20px; line-height:20px; text-align:center}";
style += ".calender li a { text-decoration:none; font-family:Tahoma; font-size:11px; color:#333}";
style += ".calender li a:hover { color:#f30; text-decoration:underline}";
style += ".calender li a.hasArticle {font-weight:bold; color:#f60 !important}";
style += ".lastMonthDate, .nextMonthDate {color:#bbb;font-size:11px}";
style += ".selectThisYear a, .selectThisMonth a{text-decoration:none; margin:0 2px; color:#000; font-weight:bold}";
style += ".calender .LastMonth, .calender .NextMonth{ text-decoration:none; color:#000; font-size:18px; font-weight:bold; line-height:16px;}";
style += ".calender .LastMonth { float:left;}";
style += ".calender .NextMonth { float:right;}";
style += ".calenderBody {clear:both}";
style += ".calenderTitle {text-align:center;height:20px; line-height:20px; clear:both}";
style += ".today { border:1px solid #f60; padding:2px}";
style += ".today a { color:#f30; }";
style += ".calenderBottom {clear:both; border-top:1px solid #ddd; padding: 3px 0; text-align:left}";
style += ".calenderBottom a {text-decoration:none; margin:2px !important; font-weight:bold; color:#000}";
style += ".calenderBottom a.closeCalender{float:right}";
style += ".closeCalenderBox {float:right; border:1px solid #000; background:#fff; font-size:9px; width:11px; height:11px; line-height:11px; text-align:center;overflow:hidden; font-weight:normal !important}";
style += "</style>";
var now;
if (typeof (arguments[0]) == "string") {
selectDate = arguments[0].split("-");
var year = selectDate[0];
var month = parseInt(selectDate[1]) - 1 + "";
var date = selectDate[2];
now = new Date(year, month, date);
} else if (typeof (arguments[0]) == "object") {
now = arguments[0];
}
var lastMonthEndDate = HS_DateAdd("d", "-1",
now.getFullYear() + "-" + now.getMonth() + "-01").getDate();
var lastMonthDate = WeekDay(now.getFullYear() + "-" + now.getMonth()
+ "-01");
var thisMonthLastDate = HS_DateAdd("d", "-1", now.getFullYear() + "-"
+ (parseInt(now.getMonth()) + 1).toString() + "-01");
var thisMonthEndDate = thisMonthLastDate.getDate();
var thisMonthEndDay = thisMonthLastDate.getDay();
var todayObj = new Date();
today = todayObj.getFullYear() + "-" + todayObj.getMonth() + "-"
+ todayObj.getDate();
for (i = 0; i < lastMonthDate; i++) { // Last Month's Date
lis = "<li class='lastMonthDate'>" + lastMonthEndDate + "</li>"
+ lis;
lastMonthEndDate--;
}
for (i = 1; i <= thisMonthEndDate; i++) { // Current Month's Date
if (today == now.getFullYear() + "-" + now.getMonth() + "-" + i) {
var todayString = now.getFullYear() + "-"
+ (parseInt(now.getMonth()) + 1).toString() + "-" + i;
lis += "<li><a href=javascript:void(0) class='today' onclick='_selectThisDay(this)' title='"
+ now.getFullYear()
+ "-"
+ (parseInt(now.getMonth()) + 1)
+ "-"
+ i
+ "'>"
+ i
+ "</a></li>";
} else {
lis += "<li><a href=javascript:void(0) onclick='_selectThisDay(this)' title='"
+ now.getFullYear()
+ "-"
+ (parseInt(now.getMonth()) + 1)
+ "-"
+ i
+ "'>"
+ i
+ "</a></li>";
}
}
var j = 1;
for (i = thisMonthEndDay; i < 6; i++) {
lis += "<li class='nextMonthDate'>" + j + "</li>";
j++;
}
lis += style;
var CalenderTitle = "<a href='javascript:void(0)' class='NextMonth' onclick=HS_calender(HS_DateAdd('m',1,'"
+ now.getFullYear()
+ "-"
+ now.getMonth()
+ "-"
+ now.getDate() + "'),this) title='Next Month'>»</a>";
CalenderTitle += "<a href='javascript:void(0)' class='LastMonth' onclick=HS_calender(HS_DateAdd('m',-1,'"
+ now.getFullYear()
+ "-"
+ now.getMonth()
+ "-"
+ now.getDate() + "'),this) title='Previous Month'>«</a>";
CalenderTitle += "<span class='selectThisYear'><a href='javascript:void(0)' onclick='CalenderselectYear(this)' title='Click here to select other year' >"
+ now.getFullYear()
+ "</a></span>年<span class='selectThisMonth'><a href='javascript:void(0)' onclick='CalenderselectMonth(this)' title='Click here to select other month'>"
+ (parseInt(now.getMonth()) + 1).toString() + "</a></span>月";
if (arguments.length > 1) {
arguments[1].parentNode.parentNode.getElementsByTagName("ul")[1].innerHTML = lis;
arguments[1].parentNode.innerHTML = CalenderTitle;
} else {
var CalenderBox = style
+ "<div class='calender'><div class='calenderTitle'>"
+ CalenderTitle
+ "</div><div class='calenderBody'><ul class='day'><li>日</li><li>一</li><li>二</li><li>三</li><li>四</li><li>五</li><li>六</li></ul><ul class='date' id='thisMonthDate'>"
+ lis
+ "</ul></div><div class='calenderBottom'><a href='javascript:void(0)' class='closeCalender' onclick='closeCalender(this)'>×</a><span><span><a href=javascript:void(0) onclick='_selectThisDay(this)' title='"
+ todayString + "'>Today</a></span></span></div></div>";
return CalenderBox;
}
}
function _selectThisDay(d) {
var boxObj = d.parentNode.parentNode.parentNode.parentNode.parentNode;
boxObj.targetObj.value = d.title;
boxObj.parentNode.removeChild(boxObj);
}
function closeCalender(d) {
var boxObj = d.parentNode.parentNode.parentNode;
boxObj.parentNode.removeChild(boxObj);
}
function CalenderselectYear(obj) {
var opt = "";
var thisYear = obj.innerHTML;
for (i = 1970; i <= 2020; i++) {
if (i == thisYear) {
opt += "<option value="+i+" selected>" + i + "</option>";
} else {
opt += "<option value="+i+">" + i + "</option>";
}
}
opt = "<select onblur='selectThisYear(this)' onchange='selectThisYear(this)' style='font-size:11px'>"
+ opt + "</select>";
obj.parentNode.innerHTML = opt;
}
function selectThisYear(obj) {
HS_calender(obj.value
+ "-"
+ obj.parentNode.parentNode.getElementsByTagName("span")[1]
.getElementsByTagName("a")[0].innerHTML + "-1",
obj.parentNode);
}
function CalenderselectMonth(obj) {
var opt = "";
var thisMonth = obj.innerHTML;
for (i = 1; i <= 12; i++) {
if (i == thisMonth) {
opt += "<option value="+i+" selected>" + i + "</option>";
} else {
opt += "<option value="+i+">" + i + "</option>";
}
}
opt = "<select onblur='selectThisMonth(this)' onchange='selectThisMonth(this)' style='font-size:11px'>"
+ opt + "</select>";
obj.parentNode.innerHTML = opt;
}
function selectThisMonth(obj) {
HS_calender(obj.parentNode.parentNode.getElementsByTagName("span")[0]
.getElementsByTagName("a")[0].innerHTML
+ "-" + obj.value + "-1", obj.parentNode);
}
function HS_setDate(inputObj) {
var calenderObj = document.createElement("span");
calenderObj.innerHTML = HS_calender(new Date());
calenderObj.style.position = "absolute";
calenderObj.targetObj = inputObj;
inputObj.parentNode.insertBefore(calenderObj, inputObj.nextSibling);
}
</script>
</head>
<body>
<table>
<tr>
<td><input type="text" style="width: 70px"
onfocus="HS_setDate(this)"></td>
<td><input type="text" style="width: 70px"
onfocus="HS_setDate(this)"></td>
</tr>
</table>
</body>
</html>
