javascript获取鼠标位置部分的实例代码(兼容IE,FF)_javascript技巧

var xPos;
var yPos;
document.onmousemove = mouseMove;
function mouseMove(ev) {
ev = ev window.event;
var mousePos = mouseCoords(ev);
xPos = mousePos.x;
yPos = mousePos.y;
}
function mouseCoords(ev) {
if (ev.pageX ev.pageY) {
return { x: ev.pageX, y: ev.pageY };
}
return {
x:ev.clientX+document.body.scrollLeft+document.documentElement.scrollLeft,
y:ev.clientY + document.body.scrollTop + document.documentElement.scrollTop
};
}