function isDate(str)
{
var re = /-/g;
str = str.replace(re,"/");
var dt=new Date(str);
return !isNaN(dt);
}
str = "2001-11-21 06:09";
alert(isDate(str));
{
var re = /-/g;
str = str.replace(re,"/");
var dt=new Date(str);
return !isNaN(dt);
}
str = "2001-11-21 06:09";
alert(isDate(str));
{
var strSeparator = "-"
var strDateArray
var intYear
var intMonth
var intDay
var boolLeapYear strDateArray = strDate.split(strSeparator) if(strDateArray.length!=3) return false intYear = parseInt(strDateArray[0],10)
intMonth = parseInt(strDateArray[1],10)
intDay = parseInt(strDateArray[2],10) if(isNaN(intYear)||isNaN(intMonth)||isNaN(intDay)) return false if(intMonth>12||intMonth<1) return false if((intMonth==1||intMonth==3||intMonth==5||intMonth==7||intMonth==8||intMonth==10||intMonth==12)&&(intDay>31||intDay<1)) return false if((intMonth==4||intMonth==6||intMonth==9||intMonth==11)&&(intDay>30||intDay<1)) return false if(intMonth==2){
if(intDay<1) return false boolLeapYear = false
if((intYear%100)==0){
if((intYear%400)==0) boolLeapYear = true
}
else{
if((intYear%4)==0) boolLeapYear = true
} if(boolLeapYear){
if(intDay>29) return false
}
else{
if(intDay>28) return false
}
} return true
}
<HTML>
<HEAD>
<TITLE> Test Date </TITLE>
</HEAD>
<BODY>
<script src="checkdate.js"></script>
<FORM name=form METHOD=POST ACTION="" onsubmit="docheck()">
<INPUT TYPE="text" NAME=date value=2001-01-01>
<INPUT TYPE="button" value=检验日期 onclick="docheck()">
</FORM>
</BODY>
</HTML>checkdate.jsfunction checkdate() //参数为要输入的时间字符串
{ //fun
var ii=0;
var aa=new Array();
var _Date = document.form.date.value ;//从form表单中提取name为date的选项的值
var dateValue=_Date;//重附值给另一个
if(dateValue!="")
{ //if
if(dateValue.indexOf(" ")!=-1) //如果存在空格，返回0
return 0;
if(dateValue.length>10||dateValue.length<8) //如果日期少于8位或大于10位，返回0
return 0;
else
{
aa[0]=-1;
for(var j=0;j<dateValue.length;j++)
{
var k=dateValue.indexOf("-",aa[ii]+1);
if(k!=-1)
{
ii=ii+1;
aa[ii]=k;
}//if
}//for
if(ii>2)
return 0;
else
{
if(dateValue.indexOf("-")!= 4)//如果不是XXXX-XX-XX，返回0
return 0;
else
{
if((dateValue.indexOf("-",5)!=6)&&(dateValue.indexOf("-",5)!=7))//
return 0;
else//开始日期校验
{
var f_i=dateValue.indexOf("-");
var l_i=dateValue.lastIndexOf("-");
var iYear=""+dateValue.substring(0,f_i);//取出年
var iMonth=dateValue.substring(f_i+1,l_i);//取出月
if(iMonth.length==1)
iMonth="0"+iMonth;
var iDate=dateValue.substring(l_i+1,dateValue.length);//取出日
if(isNaN(iYear)||isNaN(iMonth)||isNaN(iDate))
return 0;
if(iDate.length==1)
iDate="0"+iDate;
if(parseFloat(iMonth)<1||parseFloat(iMonth)>12)
return 0;
else
{
var k_Y=parseFloat(""+iYear);
var k_M=parseFloat(""+iMonth);
var k_D=parseFloat(""+iDate);
if(isNaN(k_Y)||isNaN(k_M)||isNaN(k_D))
return 0;
if(k_M==1||k_M==3||k_M==5||k_M==7||k_M==8||k_M==10||k_M==12)
{
if(k_D<1||k_D>31)
return 0;
}
if(k_M==2)
{
if(k_Y%400==0||(k_Y%4==0&&k_Y%100!=0))
{
if(k_D<1||k_D>29)
{
return 0;
}
}
else
{
if(k_D<1||k_D>28)
{
return 0;
}
}
}
if(k_M==4||k_M==6||k_M==9||k_M==11)
{
if(k_D<1||k_D>30)
{
return 0;
}
}
}
}
}
}
}
}
} function docheck()
{
if (checkdate()==0)
//window.alert("日期错误！");
if (confirm("日期错误！")==true)
{
}
else window.alert("Right!");
}
<HEAD>
<META NAME="GENERATOR" Content="Microsoft Visual Studio 6.0">
<META content="text/html; charset=gb2312" http-equiv=Content-Type>
<TITLE>checkdata</TITLE>
<script language="javascript">
<!--
// PURPOSE: Check to see if the string passed in is a valid time.
// A valid time is defined as a string which is postfixed with either
// "PM" or "AM". Next it checks to see if there is a colon in the
// string. If there is, it makes sure that at least one digit preceeds
// it and two proceed it.function chkdate(objName) {
var strDatestyle = "US"; //United States date style
var strDate;
var strDateArray;
var strDay;
var strMonth;
var strYear;
var intday;
var intMonth;
var intYear;
var booFound = false;
var datefield = objName;
var strSeparatorArray = new Array("-"," ","/",".");
var intElementNr;
var err = 0;
var strMonthArray = new Array(12);
strMonthArray[0] = "Jan";
strMonthArray[1] = "Feb";
strMonthArray[2] = "Mar";
strMonthArray[3] = "Apr";
strMonthArray[4] = "May";
strMonthArray[5] = "Jun";
strMonthArray[6] = "Jul";
strMonthArray[7] = "Aug";
strMonthArray[8] = "Sep";
strMonthArray[9] = "Oct";
strMonthArray[10] = "Nov";
strMonthArray[11] = "Dec";
strDate = datefield.value;
if (strDate.length==0) {
return false;
}
for (intElementNr = 0; intElementNr < strSeparatorArray.length; intElementNr++) {
if (strDate.indexOf(strSeparatorArray[intElementNr]) != -1) {
strDateArray = strDate.split(strSeparatorArray[intElementNr]);
if (strDateArray.length != 3) {
return false;
}
else {
strDay = strDateArray[0];
strMonth = strDateArray[1];
strYear = strDateArray[2];
if (strYear.length>4){
return false;
}
}
}
}// US style
if (strDatestyle == "US") {
strTemp = strDay;
strDay = strMonth;
strMonth = strTemp;
}
intday = parseInt(strDay, 10);
if (isNaN(intday)) {
return false;
}
intMonth = parseInt(strMonth, 10);
if (isNaN(intMonth)) {
for (i = 0;i<12;i++) {
if (strMonth.toUpperCase() == strMonthArray[i].toUpperCase()) {
intMonth = i+1;
strMonth = strMonthArray[i];
i = 12;
}
}
if (isNaN(intMonth)) {
return false;
}
}
intYear = parseInt(strYear, 10);
if (isNaN(intYear)) {
return false;
}
if (intMonth>12 || intMonth<1) {
return false;
}
if ((intMonth == 1 || intMonth == 3 || intMonth == 5 || intMonth == 7 || intMonth == 8 || intMonth == 10 || intMonth == 12) && (intday > 31 || intday < 1)) {
return false;
}
if ((intMonth == 4 || intMonth == 6 || intMonth == 9 || intMonth == 11) && (intday > 30 || intday < 1)) {
return false;
}
if (intMonth == 2) {
if (intday < 1) {
return false;
}
if (LeapYear(intYear) == true) {
if (intday > 29) {
return false;
}
}
else {
if (intday > 28) {
return false;
}
}
}
if (strDatestyle == "US") {
datefield.value = strMonthArray[intMonth-1] + " " + intday+" " + strYear;
}
else {
datefield.value = intday + " " + strMonthArray[intMonth-1] + " " + strYear;
}
return true;
}
function LeapYear(intYear) {
if (intYear % 100 == 0) {
if (intYear % 400 == 0) { return true; }
}
else {
if ((intYear % 4) == 0) { return true; }
}
return false;
}function checkdata(){
var strdate=document.form1.strdate;
if (chkdate(strdate)==false){
alert("The date is Invalid!")
document.form1.strdate.select();
document.form1.strdate.focus();
return false;
}
}
//-->
</script>
</HEAD>
<BODY onload="javascript:test()">
<form name="form1" method="post" action="">
<table width="100%" border="0">
<tr>
<td width="45%">
<div align="right">Please input the Date:</div>
</td>
<td width="55%">
<input type="text" name="strdate">
</td>
</tr>
<tr>
<td colspan="2">
<div align="center"> </div>
</td>
</tr>
<tr>
<td colspan="2">
<div align="center">
<input type="button" name="Button" value="Submit" onClick="javascript:checkdata()" style="cursor:hand">
</div>
</td>
</tr>
</table>
</form>
</BODY>
</HTML>
function isDate(str)
{
var re = /-/g;
str = str.replace(re,"/");
re=/,/g;
str = str.replace(re,"/");
var dt=new Date(str);
return !isNaN(dt);
}
str = "2001-11,21 06:09";
alert(isDate(str)); 如此，足够用了