测试

<!-- 设置cookie -->
var cookie = {
	setCookie:function(name,value,options){
		var options = options ? options : {},
			path = options.path ? options.path : '/',
			domain = options.domain ? options.domain:document.domain,
			time = options.expire ? ( new Date().getTime()+options.expire*1000 ) : '',
			expire=new Date( time ).toUTCString();
		document.cookie = encodeURIComponent(name) + '=' + encodeURIComponent(value) + ';expires = '+expire + ';domain=' + domain + ';path=' + path;
	}
}

<!-- 获取cookie -->
getCookie : function(name){
	var arr,
		reg=new RegExp('(^| )'+name+'=([^;]*)(;|$)');
	if(arr=document.cookie.match(reg)){
		console.log(arr);
		return unescape(arr[2]);
	}
	return null;
}

<!-- 移除cookie -->
removeCookie : function(name){
	var val=this.getCookie(name);
	if(val!=null){
		this.setCookie(name,val,{
			expire:-1
		})
	}
}