var h = '../admin/catsBrowse.php?';
var q = '';
var s = '';

function getList(x){
  q = 'action=date&set='+x;
  var req = h+q+s;
  send(req);
}

function listCat(x){
  window.location='topic.php?id='+x;
}

function listLoc(x){
  window.location='map.php?id='+x;
}

function listall(){
  q = 'action=topic&menu=a';
  var req = h+q+s;
  send(req);
}

function sort(x){
  s = '&sort='+x;
  var req = h+q+s;
  send(req);
}

function send(req){
  xmlHttp=ajaxFunction();
  xmlHttp.onreadystatechange=d;
  xmlHttp.open("GET",req,true);
  xmlHttp.send(null);
}

function d() 
{
  if (xmlHttp.readyState==4)
  { 
    document.getElementById('display').innerHTML = xmlHttp.responseText;
    window.location.hash="map";
  }
}

function ajaxFunction()
{
var xmlHttp=null;
try
  {
  // Firefox, Opera 8.0+, Safari
  xmlHttp=new XMLHttpRequest();
  }
catch (e)
  {
  // Internet Explorer
  try
    {
    xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
    }
  catch (e)
    {
    try
      {
      xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
      }
    catch (e)
      {
      alert("Your browser does not support AJAX!");
      return false;
      }
    }
  }
return xmlHttp;
}