获取鼠标点击位置坐标

    function getMousePos(event) {
        //兼容IE：event || window.event;
        var e = event || window.event;
        //页面滚动位移： chrome是document.body.scrollLeft，IE是document.documentElement.scrollLeft
        var scrollX = document.documentElement.scrollLeft || document.body.scrollLeft;
        var scrollY = document.documentElement.scrollTop || document.body.scrollTop;
        //浏览器窗口的坐标：e.clientX
        //Firefox支持属性pageX,与pageY属性，这两个属性已经把页面滚动计算在内了
        var x = e.pageX || e.clientX + scrollX;
        var y = e.pageY || e.clientY + scrollY;
        //alert('x: ' + x + '
y: ' + y);
        console.log("X:" + x + " Y:" + y);
        return {'x': x, 'y': y};
    }