javascript 浏览器类型和版本号检测代码(兼容多浏览器)

<!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 content="text/html; charset=utf-8" http-equiv="Content-Type" /> 
<title>javascript检测浏览器类型和版本号（兼容各浏览器） </title> 
<script language="javascript" type="text/javascript"> 
var uA = navigator.userAgent; 
var browserType = "unknown"; 
if (uA.indexOf("Opera") > -1) { 
browserType = "Opera"; 
} else if (uA.indexOf("Safari") > -1) { 
browserType = "Safari"; 
} else if (uA.indexOf("Konqueror") > -1) { 
browserType = "Konqueror"; 
} else if (uA.indexOf("Gecko") > -1) { 
browserType = "Mozilla"; 
} else if (uA.indexOf("MSIE") > -1) { 
browserType = "Internet Explorer"; 
} 
//window.alert(browserType); 
document.write(browserType); 
document.write("
"); 
document.write(document.lastModified); //显示页面的修改日期 
document.write("
"); 
document.write(navigator.userAgent); //显示客户端环境参数 
document.write("
"); 
document.write("h,w:"+screen.availHeight+"x"+screen.availWidth+"pixels");//测定显示器大小 
//显示器大小 
function screenWH(){ 
var getscreen=document.getElementById('screenWH'); 
getscreen.value=screen.availHeight+"x"+screen.availWidth; 
var divscreen=document.getElementById('screensWH'); 
divscreen.value=screen.availHeight+"x"+screen.availWidth+"pixels"; //window.screen.height+"+"+window.screen.width; 
} 
</script> 
</head> 
<body onload="javascript:screenWH();"> 
<input type="text" id="screenWH"/> 
<input type='button' onclick='notEmpty()' value='Form Checker' />

</body> 
</html>

[Ctrl+A 全选注:如需引入外部Js需刷新才能执行]
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