JS中两个时间的比较

输入的生日日期大于当前时间时，提示错误信息

var arr = new Array();
arr = "04/08/2011".split("/");
dobJoin = arr[1] + "/" + arr[0] + "/" + arr[2];
alert(dobJoin);
var dobValue = new Date(Date.parse(dobJoin));
var now = new Date();                                   //得到当前时间
alert(dobValue);
alert(now);
if(dobValue > now){
alert("Wrong time!");
}else{
alert("Right time");
}

//三种日期格式转换

<script language="JavaScript">
//alert("Date: "+Date.parse("2000-01-01"))
// On IE and Mozilla: "Date: NaN"

//alert("Date: "+Date.parse("01-01-2000"))
// On IE: "Date: 946681200000"
// On Mozilla: "Date: NaN"

alert("Date: "+Date.parse("02/01/2000"))  //日期格式mm/dd/yyyy
alert("Date: "+Date.parse("2000/02/01"))  //日期格式yyyy/mm/dd
// On IE and Mozilla: "Date: 949334400000"
alert("Date: "+Date.parse("01/02/2000"))  //日期格式dd/mm/yyyy
// On IE and Mozilla: "Date: 946742400000"
</script>