function makePing(iNP) {
	var httpRequest;

	if (window.XMLHttpRequest) { // Mozilla, Safari, ...
		httpRequest = new XMLHttpRequest();
		if (httpRequest.overrideMimeType) {
			httpRequest.overrideMimeType('text/xml');
		}
	} 
	else if (window.ActiveXObject) { // IE
		try {
			httpRequest = new ActiveXObject("Msxml2.XMLHTTP");
		} 
		catch (e) {
			try {
				httpRequest = new ActiveXObject("Microsoft.XMLHTTP");
			} 
			catch (e) {}
		}
	}

	if (!httpRequest) {
		//didn't work
		return false;
	}
	
	var sPath = window.location.pathname;
	var sPageName = sPath.substring(sPath.lastIndexOf('/') + 1);	
	
	httpRequest.onreadystatechange = function() { alertContents(httpRequest); };
	if (iNP) {
		httpRequest.open('GET', 'ping.asp?n=1&p=' + sPageName , true);
	} else {
		httpRequest.open('GET', 'ping.asp?p=' + sPageName , true);
	}
	httpRequest.send('');
}

function alertContents(httpRequest) {
	if (httpRequest.readyState == 4) {
		
		setTimeout("makePing()", 15000);
		
		if (httpRequest.status == 200) {
			//setTimeout("makePing()",15000);
		}
		
	}

}