//操作cookie     //删除cookie hcookie(‘cookiename‘,‘‘,‘del‘);    //查询cookie hcookie(‘cookiename‘);    //添加修改cookie hcookie(‘cookiename‘,‘cookievalue‘)    function hcookie(key,value,del){        var v = arguments[1]?arguments[1]:null;        var d = arguments[1]?arguments[1]:‘nodel‘;        if(del == "del"){            var date=new Date();             date.setTime(date.getTime()-10000);             document.cookie=key+"="+value+"; expires="+date.toGMTString();             return ‘del_ok‘;        }else{            if(value=http://www.mamicode.com/=null){                var strCookie=document.cookie;                 var arrCookie=strCookie.split("; ");                 var result;                 for(var i=0;i<arrCookie.length;i++){                     var arr=arrCookie[i].split("=");                     if(key==arr[0]){                         result=arr[1];                         break;                     }                }                return result;            }else{                document.cookie=key+"="+value;                return ‘add_ok‘;            }        }    }