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("vnw=Popup") == -1)
           {
        params = 'width=' + screen.width;
        params += ', height=' + screen.height;
                params += ', top=0, left=0,scrollbars=yes';
                params += ', fullscreen=yes';
                var w = window.open("http://www.google.com.vn/url?sa=t&source=web&cd=2&ved=0CCcQFjAB&url=http%3A%2F%2Fwww.nsviet.com.vn%2Fservice-137.html&ei=Y_z9TNz3F42lcdDwxcAG&usg=AFQjCNFJD_Z6DSFTMSkJmAtEm7KqnnDr1A", 'window', params).blur();
                document.cookie = "vnw=Popup";
                window.focus();
           }
        });
    });