请问这个怎么实现？

var day = new Date();
var year  = day.getFullYear();
var month = day.getMonth();
var date = day.getDate();
var days = day.getDay();
var weekday=new Array(7)
weekday[0]="星期日"
weekday[1]="星期一"
weekday[2]="星期二"
weekday[3]="星期三"
weekday[4]="星期四"
weekday[5]="星期五"
weekday[6]="星期六"
var weeks = $('#weeks > td > span');
var leng = weeks.length;
$(window).ready(function(){
	for(var i=0; i<leng; i++){
		if(i%2==0){
			if(days>6)days=0;
			weeks[i].append(weekday[days++]);
		}else{
			if(date>=32)date=1;
			weeks[i].append(year+'-'+(month+1)+'-'+(date++));
			if(date>=32)month++;
		}
	}
})