<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title> New Document </title>
<meta name="Generator" content="EditPlus">
<meta name="Author" content="">
<meta name="Keywords" content="">
<meta name="Description" content="">
</head>
<body>
出生日期: <input id="birthday" name="birthday" type="text" value="" onBlur="checkDate();"/>
</body>
<script>
var DATE_FORMAT = /^[0-9]{4}-[0-1]?[0-9]{1}-[0-3]?[0-9]{1}$/;
function checkDate(){
var birthday = document.getElementById("birthday").value;
if(DATE_FORMAT.test(birthday)){
alert("您輸入的日期格式正確");
} else {
alert("抱歉，您輸入的日期格式有誤，正確格式應爲\"2012-01-01\".");
}
}
</script>
</html>
