window.onblur = function (e) {
e = e || window.event;
if (window.ActiveXObject && /MSIE/.test(navigator.userAgent)) {//IE
//如果 blur 事件是窗口内部的点击所产生，返回 false, 也就是说这是一个假的 blur
var x = e.clientX;
var y = e.clientY;
var w = document.body.clientWidth;
var h = document.body.clientHeight;
if (x >= 0 && x = 0 && y
