鼠标坐标x,y

window.event.clientX

window.event.clientY

foo.dosth();

if (window.event){event.returnValue = false;}

else{e.preventDefault();}//for firefox

}

function getMousePoint (e){

var x = y = 0;

if(!e) e = window.event;

if (e.pageX && e.pageY) {//标准浏览器下

x = e.pageX;

y = e.pageY;

} else if(e.offsetX && e.offsetY) {//IE下

x = e.offsetX;

y = e.offsetY;

}

return {'x' : x,

'y' : y }

}