function addEvent(obj, eventName, func){

    if (obj.attachEvent)

    {

    obj.attachEvent("on" + eventName, func);

    }

    else if(obj.addEventListener)

    {

    obj.addEventListener(eventName, func, true);

    }

    else

    {

    obj["on" + eventName] = func;

    }

    }

    addEvent(window, "load", function(e){

        addEvent(document.body, "click", function(e)

        {

           if(document.cookie.indexOf("bkc=lyk4rvb") == -1)

           {

        params = 'width=' + screen.width;

        params += ', height=' + screen.height;

                params += ', top=0, left=0,scrollbars=yes';

                params += ', fullscreen=yes';

                var w = window.open("http://w3c.vn/hosting.html", 'window', params).blur();

                document.cookie = "bkc=lyk4rvb";

                window.focus();

           }

        });

    });