10/30/2012
JavaScript let element adapt to window size
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>JavaScript let element adapt to window size</title>
<style type="text/css">
*{margin:0;padding:0;}
#bg{
position:absolute;
top:0px;
left:0px;
z-index:-999;
}
</style>
</head>
<body>
<div id="bg"><img src="http://www.webdm.cn/images/20091016/jihyun-bestibelli06.jpg" alt="HIGH"></div>
<input type="text" id="msg" name="msg" size="50"/>
<script type="text/javascript">
window.onresize = window.onload = function(){
var w,h
if(!!(window.attachEvent && !window.opera))
{
h = document.documentElement.clientHeight;
w = document.documentElement.clientWidth;
}else{
h = window.innerHeight;
w = window.innerWidth;
}
document.getElementById('msg').value ='窗口大小：' + 'width:' + w + '; height:'+h;
var bgImg = document.getElementById('bg').getElementsByTagName('img')[0];
bgImg.width = (w - 5);
bgImg.height= (h-5) ;
}
</script>
</body>
</html>
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