function makeHttpRequest (url) {

  var http_request = false;

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

  if (!http_request) {
    return false;
  }
  http_request.onreadystatechange = function() {};
  http_request.open ('GET', url, true);
  http_request.send (null);
  return true;
}


function mylog (msg) {
  makeHttpRequest ("log.php?msg=" + msg);
  return true;
}