js禁止浏览器滚屏方法

 //出现滚动值立马归零
                var scroll = function (e) {
                    window.scrollTo(0, 0);
                }
                window.onscroll = scroll;
                //滚动事件 禁止
                var scrollFunc = function (e) {
                    e = e || window.event;
                    if (e && e.preventDefault) {
                        e.preventDefault();
                        e.stopPropagation();
                    } else {
                        e.returnvalue = false;
                        return false;
                    }
                }
                document.body.onmousewheel = scrollFunc;