javascript有没有浏览器窗口移动的事件，是用鼠标拖动浏览器窗口晃动，不是改变浏览器大小，请问js可不可以监听窗口移动事件，如果不可以怎么解释http://www.yyyweb.com/demo/ball-pool/
这个里面在Main.js中使用了一个定时器，通过定时器去判断浏览器是否位置改变。
function play() {function getBrowserDimensions() {
var changed = false;
if (stage[0] != window.screenX) {
delta[0] = (window.screenX - stage[0]) * 50;
stage[0] = window.screenX;
changed = true;
}
if (stage[1] != window.screenY) {
delta[1] = (window.screenY - stage[1]) * 50;
stage[1] = window.screenY;
changed = true;
}
if (stage[2] != window.innerWidth) {
stage[2] = window.innerWidth;
changed = true;
}
if (stage[3] != window.innerHeight) {
stage[3] = window.innerHeight;
changed = true;
}
return changed;
}