js获取时分秒

$("#aa").click(function() {

vardate = newDate();

this.year = date.getFullYear();

this.month = date.getMonth() + 1;

this.date = date.getDate();

this.day =new Array("星期日","星期一","星期二","星期三","星期四","星期五","星期六")[date.getDay()];

this.hour = date.getHours() < 10 ?"0" + date.getHours() : date.getHours();

this.minute = date.getMinutes() < 10 ?"0" + date.getMinutes() : date.getMinutes();

this.second = date.getSeconds() < 10 ?"0" + date.getSeconds() : date.getSeconds();

varcurrentTime = "现在是:"+ this.year +"年" + this.month +"月" + this.date +"日 " + this.hour +":" + this.minute +":" + this.second +" " + this.day;

alert(currentTime);

});