function echoDate(timestamp){
	var date = new Date(timestamp);
	month = ((date.getMonth()+1)<10?'0':'')+(date.getMonth()+1);
	day = (date.getDate()<10?'0':'')+date.getDate();
	document.write(date.getFullYear()+'年'+month+'月'+day+'日');
}
function echoDate2(timestamp){
	var date2 = new Date(timestamp);
	month2 = ((date2.getMonth()+1)<10?'0':'')+(date2.getMonth()+1);
	day2 = (date2.getDate()<10?'0':'')+date2.getDate();
	document.write(month2+'月'+day2+'日');
}