js取得浏览器的宽高度并赋值给div

今天帮忙给3D组的同事做了一个div全屏的DEMO

方法一 

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>div内容全屏</title>
<style>
* {
	margin:0;
	padding:0
}
</style>
</head>
<script src="http://code.jquery.com/jquery-1.8.2.min.js"></script>
<body>
<div class="" style=" width:100%; background:#000; color:#FFF; text-align:center" id="mywrap">我是全屏</div>
</body>
<script language="JavaScript">
if(!Array.prototype.map)
Array.prototype.map = function(fn,scope) {
		var result = [],ri = 0;
		for (var i = 0,n = this.length; i < n; i++){
		if(i in this){ result[ri++] = fn.call(scope ,this[i],i,this); }
		}
	return result;
		};
	var getWindowWH = function(){
		return ["Height","Width"].map(function(name){
			return window["inner"+name] || document.compatMode === "CSS1Compat" && document.documentElement[ "client" + name ] || document.body[ "client" + name ]
			}); 
		}
	window.onload = function (){
			if(!+"\v1" && !document.querySelector) { //IE6 IE7
			document.body.onresize = resize;
		}
		else { window.onresize = resize; }
		function resize() { wSize(); return false;}
	}
function wSize(){
		var str=getWindowWH();
		var strs= new Array();
		strs=str.toString().split(","); //字符串分割
		var h = strs[0] - 0;
		$('#mywrap').height(h); 
	}
wSize();
</script>
</html>


方法二 

<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>请调整浏览器窗口</title>
</head>
<body>
<h2 align="center">请调整浏览器窗口大小</h2><hr />
<form action="#" method="get" name="form1" id="form1">
<!--显示浏览器窗口的实际尺寸-->
浏览器窗口 的 实际高度: <input type="text" name="availHeight" size="4"/><br />
浏览器窗口 的 实际宽度: <input type="text" name="availWidth" size="4"/><br />
</form>
<script type="text/javascript">
<!-- 
var winWidth = 0;
var winHeight = 0;
function findDimensions() //函数：获取尺寸
	{
	//获取窗口宽度
	if (window.innerWidth)
		winWidth = window.innerWidth;
	else if ((document.body) && (document.body.clientWidth))
		winWidth = document.body.clientWidth;
	//获取窗口高度
	if (window.innerHeight)
		winHeight = window.innerHeight;
	else if ((document.body) && (document.body.clientHeight))
	winHeight = document.body.clientHeight;
	//通过深入Document内部对body进行检测，获取窗口大小
	if (document.documentElement && document.documentElement.clientHeight && document.documentElement.clientWidth){
		winHeight = document.documentElement.clientHeight;
		winWidth = document.documentElement.clientWidth;
	}
	//结果输出至两个文本框
	document.form1.availHeight.value= winHeight;
	document.form1.availWidth.value= winWidth;
}
findDimensions();
//调用函数，获取数值
window.onresize=findDimensions;

//-->
</script>
</body>
</html>

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