Javascript实现获取窗口的大小和位置代码分享_javascript技巧

代码如下:
(function () {
var pageWidth = window.innerWidth;
var pageHeight = window.innerHeight;
var broswerWidth = window.outerWidth;
var broswerHeight = window.outerHeight;
alert(pageWidth + " " + pageHeight);
alert(broswerWidth + " " + broswerHeight);
if (typeof pageWidth != "number") {
if (document.compatMode == "CSS1Compat") { //The standard mode
pageWidth = document.documentElement.clientWidth;
pageHeight = document.documentElement.clientHeight;
} else {
pageWidth = document.body.clientWidth;
pageHeight = document.body.clientHeight;
}
}
})();

获取窗口的位置：IE，chrome，Safari，使用screenLeft，screenTop 来获取窗口距离屏幕左边和屏幕上边的位置。而Firefox不支持此属性，Firefox使用screenXP，screenY 达到同样的效果。

代码如下:
(function btnFun() {
var leftPos = (typeof window.screenLeft == "number") ? window.screenLeft :
window.screenX;
var topPos = (typeof window.screenTop == "number") ? window.screenTop :
window.screenY;
alert(leftPos + " " + topPos);
//alert(window.screenLeft+" "+window.screenTop);
})();