Someone

<body onLoad="init();">
<div id="dyn"></div>
</body>

function init() {
//}

//	function submitForm()
//	{ 
		var req = null; 

		//document.all.dyn.value="Started...";
 
		if (window.XMLHttpRequest)
		{
 			req = new XMLHttpRequest();
			if (req.overrideMimeType) 
			{
				req.overrideMimeType('text/xml');
			}
		} 
		else if (window.ActiveXObject) 
		{
			try {
				req = new ActiveXObject("Msxml2.XMLHTTP");
			} catch (e)
			{
				try {
					req = new ActiveXObject("Microsoft.XMLHTTP");
				} catch (e) {}
			}
        	}


		req.onreadystatechange = function()
		{ 
			//document.all.dyn.value="Wait server...";
			if(req.readyState == 4)
			{
				if(req.status == 200)
				{
					document.getElementById('dyn').innerText=req.responseText;	
				}	
				else	
				{
					document.getElementById('dyn').innerText="Error: "+req.statusText;
				}	
			} 
		}
		req.open("GET", "test.php", true); 
		req.send(null); 
window.setTimeout("init()", 3000);
	} 

	</script>