来源：http://www.cnblogs.com/aaa6818162/archive/2012/03/06/2381414.html
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<HEAD>
<TITLE> New Document </TITLE>
<META NAME="Generator" CONTENT="EditPlus">
<META NAME="Author" CONTENT="">
<META NAME="Keywords" CONTENT="">
<META NAME="Description" CONTENT="">
<script type="text/javascript" src="jquery-1.4.2.js"></script>
<script type="text/javascript" src="jquery.validate.js"></script>
<SCRIPT LANGUAGE="JavaScript">
<!--
jQuery(function(){
jQuery.validator.methods.compareDate = function(value, element, param) {
//var startDate = jQuery(param).val() + ":00";补全yyyy-MM-dd HH:mm:ss格式
//value = value + ":00";
var startDate = jQuery(param).val();
var date1 = new Date(Date.parse(startDate.replace("-", "/")));
var date2 = new Date(Date.parse(value.replace("-", "/")));
return date1 < date2;
};
jQuery("#form1").validate({
focusInvalid:false,
rules:{
"timeStart":{
required: true
},
"timeEnd": {
required: true,
compareDate: "#timeStart"
}
},
messages:{
"timeStart":{
required: "开始时间不能为空"
},
"timeEnd":{
required: "结束时间不能为空",
compareDate: "结束日期必须大于开始日期!"
}
}
});
});
//-->
</SCRIPT>
</HEAD>
<BODY>
<form id="form1" name="form1" method="post" action="demo.html">
<p>timeStart:
<input name="timeStart" type="text" id="timeStart" value="2011-02-17 10:00:00"> yyyy-MM-dd HH:mm:ss
</p>
<p>timeEnd:
<input name="timeEnd" type="text" id="timeEnd" value="2011-02-17 9:00:00"> yyyy-MM-dd HH:mm:ss
</p>
<p>
<input type="submit" name="Submit" value="提交">
</p>
</form>
</BODY>
</HTML>