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<html>
<head>
<title>Ajax Demonstration</title>
<style>
.displaybox {
width:150px;
background-color:#ffffff;
border:2px solid #000000;
padding:10px;
font:24px normal verdana, helvetica, arial, sans-serif;
}
</style>
<script language="JavaScript" type="text/javascript">
function getXMLHTTPRequest() {
try {
req = new XMLHttpRequest();
} catch(err1) {
try {
req = new ActiveXObject("Msxml2.XMLHTTP");
} catch (err2) {
try {
req = new ActiveXObject("Microsoft.XMLHTTP");
} catch (err3) {
req = false;
}
}
}
return req;
}
var http = getXMLHTTPRequest();
function getServerTime() {
var myurl = 'telltimeXML.php';
myRand = parseInt(Math.random()*999999999999999);
var modurl = myurl+"?rand="+myRand;
http.open("GET", modurl, true);
http.onreadystatechange = useHttpResponse;
http.send(null);
}
function useHttpResponse() {
if (http.readyState == 4) {
if(http.status == 200) {
var timeValue = http.responseXML.getElementsByTagName("timenow")[0];
document.getElementById('showtime').innerHTML = timeValue.childNodes[0].nodeValue;
}
} else {
document.getElementById('showtime').innerHTML = '<img src="anim.gif">';
}
}
</script>
</head>
<body style="background-color:#cccccc" onLoad="getServerTime()">
<center>
<h1>Ajax Demonstration</h1>
<h2>Getting the server time without page refresh</h2>
<form>
<input type="button" value="La hora" onClick="getServerTime()">
</form>
<div id="showtime" class="displaybox"></div>
ds
</center>
</body>
</html>
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