jquery validate 的自定义验证开始时间不能大于结束时间

1. <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">  
2. <HTML>  
3.  <HEAD>  
4.   <TITLE> New Document </TITLE>  
5.   <META NAME="Generator" CONTENT="EditPlus">  
6.   <META NAME="Author" CONTENT="">  
7.   <META NAME="Keywords" CONTENT="">  
8.   <META NAME="Description" CONTENT="">  
9.   <script type="text/javascript" src="jquery-1.4.2.js"></script>  
10.   <script type="text/javascript" src="jquery.validate.js"></script>  
11.   <SCRIPT LANGUAGE="JavaScript">  
12.   <!--  
13.     jQuery(function(){          
14.         jQuery.validator.methods.compareDate = function(value, element, param) {  
15.             //var startDate = jQuery(param).val() + ":00";补全yyyy-MM-dd HH:mm:ss格式  
16.             //value = value + ":00";  
17.               
18.             var startDate = jQuery(param).val();  
19.               
20.             var date1 = new Date(Date.parse(startDate.replace("-", "/")));  
21.             var date2 = new Date(Date.parse(value.replace("-", "/")));  
22.             return date1 < date2;  
23.         };  
24.           
25.         jQuery("#form1").validate({  
26.             focusInvalid:false,  
27.             rules:{  
28.                 "timeStart":{  
29.                     required: true  
30.                 },  
31.                 "timeEnd": {  
32.                     required: true,  
33.                     compareDate: "#timeStart"  
34.                 }  
35.             },  
36.             messages:{  
37.                 "timeStart":{  
38.                     required: "开始时间不能为空"  
39.                 },  
40.                 "timeEnd":{  
41.                     required: "结束时间不能为空",  
42.                     compareDate: "结束日期必须大于开始日期!"  
43.                 }  
44.             }  
45.         });  
46.     });  
47.   //-->  
48.   </SCRIPT>  
49.  </HEAD>  
50.   
51.  <BODY>  
52.  <form id="form1" name="form1" method="post" action="demo.html">  
53.    <p>timeStart:  
54.      <input name="timeStart" type="text" id="timeStart" value="2011-02-17 10:00:00"> yyyy-MM-dd HH:mm:ss  
55.    </p>  
56.    <p>timeEnd:  
57.      <input name="timeEnd" type="text" id="timeEnd" value="2011-02-17 9:00:00"> yyyy-MM-dd HH:mm:ss  
58.    </p>  
59.    <p>  
60.      <input type="submit" name="Submit" value="提交">  
61.    </p>  
62.  </form>  
63.     
64.  </BODY>  
65. </HTML>