自己写的一个函数，可以对混合的日期格式进行判断如“2008年9月23日12时36分4秒”和"2008-9-23 13:37:4"。
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<script>
2
//这里是测试代码
3var start = 0;
4var end = 0;
5start = new Date().getTime();
6var a = "2008年02-03日20时36分4秒"
7var b = "2008-02-03 20:36：4"
8document.write("比较结果为："+comparDate(b,a)+"<br>")
9end = new Date().getTime();
10document.write("耗时："+(end - start) / 1000 + "sec");
11//测试代码结束
12
13
function comparDate(date1, date2) {
14 var patton1 = /[日秒]/g;
15 var patton2 = /[年月-]/g;
16 var patton3 = /[时分：]/g;
17 date1 = date1.replace(patton1," ").replace(patton2,"/").replace(patton3,":");
18 date2 = date2.replace(patton1," ").replace(patton2,"/").replace(patton3,":");
19 document.write(date1 + "<br>");
20 document.write(date2 + "<br>");
21 var Temp = (Date.parse(date1) - Date.parse(date2)); // 24*60*60*1000
22 var result = Temp > 0 ? 1 : Temp == 0 ? 0 : -1;
23 return result;//返回1是大于，返回0是等于，返回-1是小于
24
}
25
</script>
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<script>
2
//这里是测试代码3
var start = 0;4
var end = 0;5
start = new Date().getTime();6
var a = "2008年02-03日20时36分4秒"7
var b = "2008-02-03 20:36：4"8
document.write("比较结果为："+comparDate(b,a)+"<br>")9
end = new Date().getTime();10
document.write("耗时："+(end - start) / 1000 + "sec");11
//测试代码结束12
13
function comparDate(date1, date2) {
14
var patton1 = /[日秒]/g;15
var patton2 = /[年月-]/g;16
var patton3 = /[时分：]/g;17
date1 = date1.replace(patton1," ").replace(patton2,"/").replace(patton3,":");18
date2 = date2.replace(patton1," ").replace(patton2,"/").replace(patton3,":");19
document.write(date1 + "<br>");20
document.write(date2 + "<br>");21
var Temp = (Date.parse(date1) - Date.parse(date2)); // 24*60*60*100022
var result = Temp > 0 ? 1 : Temp == 0 ? 0 : -1;23
return result;//返回1是大于，返回0是等于，返回-1是小于24
}25
</script>26