会议室预订系统 鼠标位置

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    var ev = event || window.event;
    var mousePos = mousePosition(ev);
 

    function mousePosition(ev) {
        if (ev.pageX || ev.pageY) {
            return {x: ev.pageX, y: ev.pageY};
        }
        return {
            x: ev.clientX + document.body.scrollLeft - document.body.clientLeft,
            y: ev.clientY + document.body.scrollTop - document.body.clientTop
        };
    }