function create_request() {
	try {
		request = new XMLHttpRequest();
	} catch (trymicrosoft) {
		try {
			request = new ActiveXObject("Msxml12.XMLHTTP");
		} catch (othermicrosoft) {
			try {
				request = new ActiveXObject("Microsoft.XMLHTTP");
			} catch (failed) {
				request = null;
			}
		}
	}
	return request;
}

var request = false;

function make_request(id,url) {
	if (!request) request = create_request();
	request.open("GET", url, true);
	request.onreadystatechange = function() {
		if (request.readyState == 4 && request.status == 200) {
			$(id).innerHTML = request.responseText;
			$(id).style.display = "block";
		}
	};
	request.send(null);
}

function make_request_call(id,url,params) {
	if (!request) request = create_request();
	request.open("POST", url, true);
	request.onreadystatechange = function() {
		if (request.readyState == 4 && request.status == 200) {
			$(id).innerHTML = request.responseText;
			$(id).style.display = "block";
		}
	};
	request.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
	request.send(params);
}