JS控制日期显示

function Clock() {  	var date = new Date();  	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();    	this.toString = function() {  		return "现在是:" + this.year + "年" + this.month + "月" + this.date + "日 " + this.hour + ":" + this.minute + ":" + this.second + " " + this.day;   	};//现在是现在是:2013年3月6日 13:54:17 星期三

this.toSimpleDate = function() {  		return this.year + "-" + this.month + "-" + this.date;  	};//2013-03-06  	  	this.toDetailDate = function() {  		return this.year + "-" + this.month + "-" + this.date + " " + this.hour + ":" + this.minute + ":" + this.second;  	};//2013-03-06 13:45:43  	  	this.display = function(ele) {  		var clock = new Clock();  		ele.innerHTML = clock.toString();//显示方式调用  		window.setTimeout(function() {clock.display(ele);}, 1000);  	};  }