var http_request = false; 
function makePOSTRequest(parameters) {
	http_request = false;
	if (window.XMLHttpRequest) {
		http_request = new XMLHttpRequest();
		if (http_request.overrideMimeType) {
			http_request.overrideMimeType('text/html');
		}
	} else if(window.ActiveXObject) {
		http_request = new ActiveXObject("Microsoft.XMLHTTP");
	} else {
		alert('Cannot create XMLHTTP instance');
		return false;
	}
	http_request.onreadystatechange = handleresults;
	http_request.open('POST', '/memberajax.p82', true);
	http_request.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
	http_request.setRequestHeader("Content-length", parameters.length);
	http_request.setRequestHeader("Connection", "close");
	http_request.send(parameters);
}