//------------------------------------------------------------------------------

function getHttpRequest()
{
  var httpRequest;
  if (window.ActiveXObject)
  {
    httpRequest = new ActiveXObject("Microsoft.XMLHTTP");
  }
  else if (window.XMLHttpRequest)
  {  
    httpRequest = new XMLHttpRequest();
  }
  return httpRequest;
}


function ajax_request(method, url, content)
{
  var httpRequest = getHttpRequest()
  if (!httpRequest) return false;
  formChanged = false;
  if (method == "post")
  {
    httpRequest.open("POST", url);
    httpRequest.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
    httpRequest.send(content);
  }
  else if (method == "get")
  {
    httpRequest.open("GET", url);
    httpRequest.send(content);
  }
  return httpRequest;
}