if(navigator.cookieEnabled){//判断是否支持Cookie
	Cookie={ 
		get:function(n){ 
			n+="=";var c=document.cookie,v=""; 
			if(c.length==0) return v; 
			var a=c.indexOf(n); 
			if(a==-1) return v; 
			a+=n.length; 
			var b=c.indexOf(";",a); 
			if (b==-1) b=c.length; 
			v=unescape(c.substring(a,b)); 
			return v; 
		},
		set:function(n,v,h){ 
			var e=h==null?"":"; expires="+new Date((new Date()).getTime() + h * 3600000).toGMTString(); 
			document.cookie=n+"="+escape(v)+";path=/"+e; 
		}
	}
}else{
	alert('您的浏览器关闭了cookie功能，某些功能将失效!');
}