js写入读取cookie

写入：

<script type="text/javascript">
//<![CDATA[
	var cookie = {};
	cookie.set = function(n, v, t){
//		var exp  = new Date();
//		exp.setTime(exp.getTime() + (t||24)*60*60*1000);
//		document.cookie = n + "="+ escape(v) + ";expires=" + exp.toGMTString()+';path=/';
		document.cookie = n + "=" + "cookie test";
	}

//	cookie.get = function(n){
//		var arr = document.cookie.match(new RegExp("(^| )"+ n +"=([^;]*)(;|$)"));
//		if(arr != null) return unescape(arr[2]);
//			return null;
//	}

	cookie.set('test', Math.random());
	alert('写入Cookie成功!');
//]]>
</script>

 读取：

<script type="text/javascript">
//document.write((new Date()).toGMTString())
//<![CDATA[
	var cookie = {};
	cookie.set = function(n, v, t){
//		var exp  = new Date();
//		exp.setTime(exp.getTime() + (t||24)*60*60*1000);
		document.cookie = n + "=" + escape(v);// + ";expires=" + exp.toGMTString()+';path=/';
	}

	cookie.get = function(n){
		var arr = document.cookie.match(new RegExp("(^| )"+ n +"=([^;]*)(;|$)"));
		if(arr != null) return unescape(arr[2]);
			return null;
	}
	alert('读取Cookie test的值为:\n'+cookie.get('test'));
//]]>
</script>