function createXMLHttpRequest() {
	try {
		req = new ActiveXObject("MSXML2.XMLHTTP");
	}
	catch (err_MSXML2) {
		try {
			req = new ActiveXObject("Microsoft.XMLHTTP");
		}
		catch (err_Microsoft) {
			if (typeof XMLHttpRequest != "undefined") 
			req = new XMLHttpRequest;
		}
	}
	return req;
}

function sendRequestGet (url) {
	var req = createXMLHttpRequest();
	req.open('GET', url); 
	req.send(null);
}

function sendRequestPost (url) {
	var req = createXMLHttpRequest();
	req.open('POST', url); 
	req.send(null);
}