禁止Ctrl键加滚动缩小放大页面

	禁止Ctrl键加滚动缩小放大页面
    
    var scrollFunc = function (e) {
        e = e || window.event;
        if (e.wheelDelta && event.ctrlKey) {//IE/Opera/Chrome
            event.returnValue = false;
        } else if (e.detail) {//Firefox
            event.returnValue = false;
        }
    }


    /*注册事件*/
    if (document.addEventListener) {
        document.addEventListener('DOMMouseScroll', scrollFunc, false);
    }//W3C
    window.onmousewheel = document.onmousewheel = scrollFunc;//IE/Opera/Chrome/Safari