jQuery_validate_开始时间不得大于结束时间

"personContract.enddate"{compareDate:"#startdate"}

//结束时间不得小于开始时间
$.validator.methods.compareDate = function(value, element, param) {
var startDate = $(param).val();
if(startDate.length!=0&&value.length!=0){
var date1 = new Date(Date.parse(startDate.replace("-", "/")));
var date2 = new Date(Date.parse(value.replace("-", "/")));
return date1 < date2;
}else{
return true;
}
};