if (window.XMLHttpRequest) { 
	xmlHttp = new XMLHttpRequest();
} else if (window.ActiveXObject) { 
	xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
}
function callServer(url) {
	xmlHttp.open("GET", url, true);
	xmlHttp.onreadystatechange = updatePage;
	xmlHttp.send(null);
}
function updatePage() {
	if (xmlHttp.readyState == 4) {
		var response = xmlHttp.responseText;
		document.getElementById("rtcx").innerHTML = response + " Visitor(s) Online Now";
		setTimeout("callServer('/counter.asp?sid=IMC')",30000);
	}
}
callServer("/counter.asp?sid=IMC");