检测CentOS 6是否发布的代码代码,JS代码库,德仔网

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【JS】检测CentOS 6是否发布的代码

作者:开心303 / 发布于2011/7/11/ 712

<blockquote>
<div><html>
<head>
<meta http-equiv="content-type" content="text/html; charset=UTF-8" />
<title>check centos 6</title>
</head>
<body onLoad="startrefresh();">
 <div id="div1">刷新中</div>
</body>
<script type="text/JavaScript">
 var url1 = "<a href="http://mirror.centos.org/centos/6.0/">http://mirror.centos.org/centos/6.0/</a>";
 var url2 = "<a href="http://mirror.centos.org/centos/6/">http://mirror.centos.org/centos/6/</a>";
 var refreshseconds = 60; //刷新间隔秒数
 /**************************************************************************/
 var urlstate = true;
 function sendajax(){
 
 var newurl = urlstate ? url1 : url2;
 urlstate = !urlstate;
 
 newurl += "?the_random_number="+Math.random();
 
 var xmlhttp;
 if (window.XMLHttpRequest){
 xmlhttp=new XMLHttpRequest();
 }else{
 xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
 }
<div> xmlhttp.onreadystatechange=function(){
 if (xmlhttp.readyState==4 && xmlhttp.status==200){
 //终于发布了......
 clearInterval(tempinterval); //停止刷新
 
 objdiv.innerHTML += ""+newurl + " : " + new Date()+"";
 document.title = "发布啦！";
 alert("发布啦！");
 
 }
 }
 
 xmlhttp.open("GET", newurl, true);
 xmlhttp.send();
 objdiv.innerHTML = ("累计刷新了"+(++refreshcount)+"次，上次刷新时间："+ new Date());
}
 
 var tempinterval;
 var objdiv = document.getElementById("div1");
 var refreshcount = 0;</div>
<div> function startrefresh(){
 sendajax();
 tempinterval = setInterval("sendajax()", refreshseconds*1000);
 }
</script>
</html>
</div>
</blockquote>

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