function addLoadListener(fn)
{
  if (typeof window.addEventListener != 'undefined')
  {
    window.addEventListener('load', fn, false);
  }
  else if (typeof document.addEventListener != 'undefined')
  {
    document.addEventListener('load', fn, false);
  }
  else if (typeof window.attachEvent != 'undefined')
  {
    window.attachEvent('onload', fn);
  }
  else
  {
    var oldfn = window.onload;
    if (typeof window.onload != 'function')
    {
      window.onload = fn;
    }
    else
    {
      window.onload = function()
      {
        oldfn();
        fn();
      };
    }
  }
}

function attachEventListener(target, eventType, functionRef, capture)
{
  if (typeof target.addEventListener != "undefined")
  {
    target.addEventListener(eventType, functionRef, capture);
  }
  else if (typeof target.attachEvent != "undefined")
  {
    target.attachEvent("on" + eventType, functionRef);
  }
  else
  {
    eventType = "on" + eventType;

    if (typeof target[eventType] == "function")
    {
      var oldListener = target[eventType];

      target[eventType] = function()
      {
        oldListener();

        return functionRef();
      }
    }
    else
    {
      target[eventType] = functionRef;
    }
  }

  return true;
}




function getEventTarget(event)
{
  var targetElement = null;

  if (typeof event.target != "undefined")
  {
    targetElement = event.target;
  }
  else
  {
    targetElement = event.srcElement;
  }

  while (targetElement.nodeType == 3 && targetElement.parentNode != null)
  {
    targetElement = targetElement.parentNode;
  }

  return targetElement;
}


function toggleDivOL( elemID )
{
	var elem = document.getElementById( elemID );
	if( elem.style.position != 'absolute' )
	{
		elem.style.position = 'absolute';
		elem.style.left = '-4000px';
	}
	else
	{
		elem.style.position = 'relative';
		elem.style.left = '0px';
	}
}

function divbox (box_id)
{
  if (box_id.style.display == "block")
	box_id.style.display = "none";
  else if (box_id.style.display == "none")
	box_id.style.display = "block";
  else
	return false;
}

function createRequestObject() {
	var req;
	if(window.XMLHttpRequest){
		req = new XMLHttpRequest();
	} else if(window.ActiveXObject) {
		req = new ActiveXObject("Microsoft.XMLHTTP");
	} else {
		alert('There was a problem creating the XMLHttpRequest object, Your browser does not support AJAX! most modern browsers do, please disable javascript to stop seeing these messages');
	}
	return req;
}

var http = createRequestObject();

function sendRequest(act, eID) {
	var i = Math.round(10000000000*Math.random())
	http.open('get', act+'&rand='+i);
	http.onreadystatechange = handleResponse;
	http.send(null);
}

function handleResponse() {
	if(http.readyState == 4 && http.status == 200){
		var response = http.responseText;
		if(response) {
			document.getElementById("helpdiv").innerHTML = response; // change "helpdiv" if needbe
			setTimeout(messagediv,2000);
		}
	}
}



function ajax_do(url, div) {
  sendRequest(url, div);
  //alert('Done: '+url);
  return false;
}