<html>
<head>
<script>
function submitForm()
{ 
    var xhr; 
    try {  xhr = new ActiveXObject('Msxml2.XMLHTTP');   }
    catch (e) 
    {
        try {   xhr = new ActiveXObject('Microsoft.XMLHTTP'); }
        catch (e2) 
        {
           try {  xhr = new XMLHttpRequest();  }
           catch (e3) {  xhr = false;   }
         }
    }
    xhr.onreadystatechange  = function() 
    { 
       if(xhr.readyState  == 4)
       {
        if(xhr.status  == 200) 
            document.ajax.dyn="Received:"  + xhr.responseText; 
        else
            document.ajax.dyn="Error code " + xhr.status;
        }
    }; 
	xhr.open("GET", "data.xml",  true); 
	xhr.send(null); 
} 
</script>
</head>

<body>
	<FORM method="POST" name="ajax" action="">
		<INPUT type="BUTTON" value="Submit"  ONCLICK="submitForm()">
		<INPUT type="text" name="dyn"  value="">
	</FORM>
</body>

<html>