Вот вывод
<br>
<html>
<head>
<script type="text/javascript" language="javascript">
var req = Create();
function Create()
{
if(navigator.appName == "Microsoft Internet Explorer")
{
req = new ActiveXObject("Microsoft.XMLHTTP");
}
else
{
req = new XMLHttpRequest();
}
return req;
}
function Request(query)
{
req.open('post', 'ajax.php' , true );
req.onreadystatechange = Refresh;
req.setRequestHeader("Content-Type", "application/x-www-form-urlencoded; charset=utf-8");
req.send(query);
}
function Refresh()
{
var a = req.readyState;
if( a == 4 )
{
var b = req.responseText;
document.getElementById('ajax').innerHTML = b;
}
else
{
document.getElementById('ajax').innerHTML = '<p>Ждите...</p>';
}
}
function Pusk()
{
var query;
query ='txt='+encodeURIComponent(document.getElementById('myid').value);
Request(query);
}
</script>
</head>
<body>
<div id="ajax"></div>
<input type='text' id='myid' ><br>
<input type="button" value="ТЫРЦ" onClick="Pusk()">
</body>
</html>