function getXMLHttp() {
	var xmlhttp=null;
	if (window.XMLHttpRequest) {// code for Firefox, Opera, IE7, etc.
		xmlhttp=new XMLHttpRequest();
	} else if (window.ActiveXObject) {// code for IE6, IE5
		xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
	}
	return xmlhttp;
}

function IMNotifier(agentURL, title, dbId, docId, targetURL, refererURL, sendTo) {
	var args = "&title=" + encodeURIComponent(title) + 
				"&dbId=" + dbId + 
				"&docId=" + docId +
				"&url=" + targetURL +
				"&referer=" + refererURL +
				"&sendTo=" + sendTo + 
				"&ts=" + new Date().getTime();
	oHttp = getXMLHttp();
	try {
	if (oHttp != null) {
		oHttp.onreadystatechange = function(){ handleIMNotifyReply(oHttp) };
		
		oHttp.open("post", agentURL, true);
		oHttp.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
		oHttp.send(args);
	}
	} catch (e) {
	
	}
}

function handleIMNotifyReply(oHttp) {
	if (oHttp.readyState==4) {
		if (oHttp.status==200) {
			oHttp = null;
		} else {
			oHttp = null;
		}
	}
}