JS验证时间日期

<script language="JavaScript"><!--
function validateDate(date) {
// NaN is never equal to itself.
if (Date.parse(date) != Date.parse(date))
document.write(date + ' - Invalid date<br>');
else
document.write(date + ' - Valid date<br>');
}

validateDate('hello world');
validateDate('29 January 1999');
validateDate('February 30 2000');
validateDate('Sat 8 2000 Jan');
validateDate('2008-08-01 11:20:30');
validateDate('2008/08/01 11:20:30');
//--></script>