var siteURL;
function GetHttp(){
  if (window.XMLHttpRequest) {
    xmlhttp = new XMLHttpRequest();
  } else if(window.ActiveXObject) {
    xmlhttp = new ActiveXObject("MSXML2.XMLHTTP");
  }
}

function fillCountry(getURL) {
  siteURL = getURL;
  GetHttp();
  var searchURL = siteURL+"includes/loadLeft.php";
  var posturl = "action=loadCountry";
  xmlhttp.open("POST",searchURL,true);
  xmlhttp.setRequestHeader("Content-Type","application/x-www-form-urlencoded; charset=UTF-8");
  xmlhttp.send(posturl);
  xmlhttp.onreadystatechange=searchResultCountry
}

function searchResultCountry() {
  if (xmlhttp.readyState==4) {
    document.getElementById("countryDiv").innerHTML=xmlhttp.responseText;
  } else {
    document.getElementById("countryDiv").innerHTML ="<center><font class='arial12blacknormal'><strong>Loading...</strong></font></center>";
  }
}

function fillRegion(country_id) {
  GetHttp();
  var searchURL = siteURL+"includes/loadLeft.php";
  var posturl = "action=loadRegion&cid="+country_id;
  xmlhttp.open("POST",searchURL,true);
  xmlhttp.setRequestHeader("Content-Type","application/x-www-form-urlencoded; charset=UTF-8");
  xmlhttp.send(posturl);
  xmlhttp.onreadystatechange=searchResultRegion
}

function searchResultRegion() {
  if (xmlhttp.readyState==4) {
    document.getElementById("regionDiv").innerHTML=xmlhttp.responseText;
  } else {
    document.getElementById("regionDiv").innerHTML ="<center><font class='arial12blacknormal'><strong>Loading...</strong></font></center>";
  }
}

function fillTown(reg_id) {
  GetHttp();
  var searchURL = siteURL+"includes/loadLeft.php";
  var posturl = "action=loadTown&rid="+reg_id;
  xmlhttp.open("POST",searchURL,true);
  xmlhttp.setRequestHeader("Content-Type","application/x-www-form-urlencoded; charset=UTF-8");
  xmlhttp.send(posturl);
  xmlhttp.onreadystatechange=searchResultTown
}

function searchResultTown() {
  if (xmlhttp.readyState==4) {
    document.getElementById("townDiv").innerHTML=xmlhttp.responseText;
  } else {
    document.getElementById("townDiv").innerHTML ="<center><font class='arial12blacknormal'><strong>Loading...</strong></font></center>";
  }
}