js获取屏幕

js获取屏幕（设备）宽高

<script language="javascript">
var h = "";
h += " 网页可见区域宽："+ document.body.clientWidth+"
";
h += " 网页可见区域高："+ document.body.clientHeight+"
";
h += " 网页可见区域宽："+ document.body.offsetWidth +" (包括边线和滚动条的宽)"+"
";
h += " 网页可见区域高："+ document.body.offsetHeight +" (包括边线的宽)"+"
";
h += " 网页正文全文宽："+ document.body.scrollWidth+"
";
h += " 网页正文全文高："+ document.body.scrollHeight+"
";
h += " 网页被卷去的上："+ document.body.scrollTop+"
";
h += " 网页被卷去的左："+ document.body.scrollLeft+"
";
h += " 网页正文部分上："+ window.screenTop+"
";
h += " 网页正文部分左："+ window.screenLeft+"
";
h += " 屏幕分辨率的宽："+ window.screen.width+"
";
h += " 屏幕分辨率的高："+ window.screen.height+"
";
h += " 屏幕可用工作区宽度："+ window.screen.availWidth+"
";
h += " 屏幕可用工作区高度："+ window.screen.availHeight+"
";
h += " 你的屏幕设置是 "+ window.screen.colorDepth +" 位彩色"+"
";
h += " 你的屏幕设置 "+ window.screen.deviceXDPI +" 像素/英寸"+"
";
alert(h);
</script>