比较指定日期与当前日期大小

//获取MM/DD格式的月/日
function getFullDate(day){
    var theday = day;
    if(theday < 9){
        theday = '0'+theday;
    }
    return theday;
}

var myDate = new Date();
//比较指定日期与当前日期大小
function compareDate(obj){
    var day1 = new Date(myDate.getFullYear(),myDate.getMonth()+1,myDate.getDate());
    var time1 = day1.getTime(); // 当前日期时间戳
    var day2 = new Date(obj.year,obj.month,obj.day);
    var time2 = day2.getTime();//所选日期时间戳
    if(parseInt(time2) > parseInt(time1)){
    　　return false;
    }
    return true;
}