Codice:
<html>
<head>
<title>Ajax</title>
<script type=.text/javascript">
function Ajax(filez) {
var request = null;
request = XMLHttpRequest();
if(request) {
request.open("GET", filez);
request.onreadystatechange = function() {
if(request.readyState == 4) {
document.getElementById("ciao").innerHTML = request.responseText;
}
}
request.send(null);
}
else {
alert("Ajax non funzionante");
}
}
</script>
</head>
<body>
<form>
<input type="submit" value="Richiesta Ajax" onClick="Ajax('ciao.txt'); return true;" >
</form>
<div id="ciao"></div>
</body>
</html>
Perchè ho request.responseText vuoto?