获取服务器端控件，检测服务器版本
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>改变Select控件选中项背景色</title>
<script type="text/javascript">
function A()
{
var oBt = document.getElementById("<%=Button1.ClientID%>");
oBt.disabled = true; //相当于Button1.Enabled = true;
//oBt.disabled = false; //相当于Button1.Enabled = false;
}
</script>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:Button ID="Button1" runat="server" OnClientClick="A()" Text="提交" />
</div>
</form>
</body>
</html> <script type="text/javascript">function check(reg) {
var ug = navigator.userAgent.toLowerCase();
return reg.test(ug);
}
function checkBrowser() {
var ug = navigator.userAgent.toLowerCase();
var userAgent = document.getElementById("userAgent");
userAgent.innerHTML = "浏览器的用户代理报头：" + ug;
var browserType = "";
var ver = "";
//检测IE及版本
var IE = ug.match(/msie\s*\d\.\d/); //提取浏览器类型及版本信息，注match()方法返回的是数组而不是字符串
var isIE = check(/msie/);
if(isIE) {
browserType = "Internet Explorer";
ver = IE.join(" ").match(/[0-9]/g).join("."); //先用join()方法转化为字符串，然后用match()方法匹配到版本信息，再用join()方法转化为字符串
}
//检测chrome及版本
var chrome = ug.match(/chrome\/\d\.\d/gi);
var isChrome = check(/chrome/);
if(isChrome) {
browserType = "Chrome";
ver = chrome.join(" ").match(/[0-9]/g).join(".");
}
//检测firefox及版本
var firefox = ug.match(/firefox\/\d\.\d/gi);
var isFirefox = check(/firefox/);
if(isFirefox) {
browserType = "Firefox";
ver = firefox.join(" ").match(/[0-9]/g).join(".");
}
var browser = document.getElementById("browser");
browser.innerHTML = "您正在使用的浏览器为：" + browserType + "<span style='padding-left:15px;'>版本为：</span>" + ver;
}
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