// JavaScript Document
var geonamesPostalCodeCountries = ["LU","ZA","RE","HR","HU","DO","MK","VA","DE","MC","MD","DK","AT","MX","AR","US","IN","AU","IS","IT","MQ","PT","AD","ES","NL","YT","JP","NZ","GF","BR","GB","TH","CA","TR","NO","BG","FR","FO","BD","BE","FI","CZ","SE","SI","SK","SM","PL","GT","CH","GP","PK","LI","LK","GL","GR"];
var geonamesUserIpCountryCode='FR';
var postalcodes;
// this function will be called by our JSON callback
// the parameter jData will contain an array with postalcode objects
function getLocation(jData) {
  if (jData == null) {
    // There was a problem parsing search results
    return;
  }
  // save place array in 'postalcodes' to make it accessible from mouse event handlers
  postalcodes = jData.postalcodes;
  if (postalcodes.length > 1) {
    // we got several places for the postalcode
    // make suggest box visible
    document.getElementById('suggestBoxElement').style.visibility = 'visible';
    var suggestBoxHTML  = '';
    // iterate over places and build suggest box content
    for (i=0;i< jData.postalcodes.length;i++) {
      // for every postalcode record we create a html div 
      // each div gets an id using the array index for later retrieval 
      // define mouse event handlers to highlight places on mouseover
      // and to select a place on click
      // all events receive the postalcode array index as input parameter
      suggestBoxHTML += "<div class='suggestions' id=pcId" + i + " onmousedown='suggestBoxMouseDown(" + i +")' onmouseover='suggestBoxMouseOver(" +  i +")' onmouseout='suggestBoxMouseOut(" + i +")'> " +  postalcodes[i].postalcode + ' &nbsp;&nbsp; ' + postalcodes[i].placeName  +'</div>' ;
    }
    // display suggest box
    document.getElementById('suggestBoxElement').innerHTML = suggestBoxHTML;
  } else {
    if (postalcodes.length == 1) {
      // exactly one place for postalcode
      // directly fill the form, no suggest box required 
      var placeInput = document.getElementById("ville");
      placeInput.value = postalcodes[0].placeName;
    }
    closeSuggestBox();
  }
}
function closeSuggestBox() {
  document.getElementById('suggestBoxElement').innerHTML = '';
  document.getElementById('suggestBoxElement').style.visibility = 'hidden';
}
// remove highlight on mouse out event
function suggestBoxMouseOut(obj) {
  document.getElementById('pcId'+ obj).className = 'suggestions';
}
// the user has selected a place name from the suggest box
function suggestBoxMouseDown(obj) {
  closeSuggestBox();
  var placeInput = document.getElementById("ville");
  placeInput.value = postalcodes[obj].placeName;
}
 
// function to highlight places on mouse over event
function suggestBoxMouseOver(obj) {
  document.getElementById('pcId'+ obj).className = 'suggestionMouseOver';
}
 
// this function is called when the user leaves the postal code input field
// it call the geonames.org JSON webservice to fetch an array of places 
// for the given postal code 
function postalCodeLookup() {
  var country = document.getElementById("pays").value;
  if (geonamesPostalCodeCountries.toString().search(country) == -1) {
     return; // selected country not supported by geonames
  }
  // display loading in suggest box
    var postalcode = document.getElementById("cp").value;
if (postalcode.length<1)
{  return; // selected country not supported by geonames
  }
  document.getElementById('suggestBoxElement').style.visibility = 'visible';
  document.getElementById('suggestBoxElement').innerHTML = '<small><i>Recherche en cours...</i></small>';
  request = 'http://ws.geonames.org/postalCodeLookupJSON?postalcode=' + postalcode  + '&country=' + country  + '&callback=getLocation';
  // Create a new script object
  aObj = new JSONscriptRequest(request);
  // Build the script tag
  aObj.buildScriptTag();
  // Execute (add) the script tag
  aObj.addScriptTag();
}
 
// set the country of the user's ip (included in geonamesData.js) as selected country 
// in the country select box of the address form
function setDefaultCountry() {
  var countrySelect = document.getElementById("pays");
  for (i=0;i< countrySelect.length;i++) {
    // the javascript geonamesData.js contains the countrycode
    // of the userIp in the variable 'geonamesUserIpCountryCode'
    if (countrySelect[i].value == geonamesUserIpCountryCode) {
      // set the country selectionfield
      countrySelect.selectedIndex = i;
    }
  }
}