var map = null;
var linkinfo;
var geocoder = null;
var reloadcon = null;
var countboxText = null;
var overlays = new Array();
overlays["newmarker"] = null;
//overlays["ruler"] = new Array();
overlays["locations"] = new Array();
overlays["links"] = new Array();
var locations = new Array();
var links = new Array();


debug = function (log_txt) {
  if (typeof window.console != 'undefined') {
    console.log(log_txt);
  }
}

function initialize(lat, lng, res) {
  debug("Initializing Funkfeuer Graz Map");

  var OSM_Mapnik = 'OSM_Mapnik';
  var copyrightNode = document.createElement('div');
  copyrightNode.id = 'copyright-control';
  copyrightNode.style.fontSize = '11px';
  copyrightNode.style.fontFamily = 'Arial, sans-serif';
  copyrightNode.style.margin = '0 2px 2px 0';
  copyrightNode.style.whitespace = 'nowrap';
  copyrightNode.innerHTML = 'Map data &copy; <a href=\"http://www.openstreetmap.org/\">OpenStreetMap</a> / Google';
  copyrightNode.index = 0;

  google.maps.visualRefresh=true;
  var mapOptions = {
    center: new google.maps.LatLng(lat, lng),  zoom: res,
    streetViewControl: false, disableDoubleClickZoom: true,
    mapTypeId: OSM_Mapnik,
    mapTypeControlOptions: {
      mapTypeIds: [google.maps.MapTypeId.ROADMAP, google.maps.MapTypeId.HYBRID,
                   google.maps.MapTypeId.SATELLITE , google.maps.MapTypeId.TERRAIN,
                   OSM_Mapnik ],
      style: google.maps.MapTypeControlStyle.HORIZONTAL_BAR,
    }
  };
  map = new google.maps.Map(document.getElementById("map"), mapOptions);

  map.mapTypes.set("OSM_Mapnik", new google.maps.ImageMapType({
      getTileUrl: function(coord, zoom) {
          return "//tile.openstreetmap.org/" + zoom + "/" + coord.x + "/" + coord.y + ".png";
      },
      tileSize: new google.maps.Size(256, 256),
      name: "OpenStreetMap",
      maxZoom: 18
  }));

  map.controls[google.maps.ControlPosition.BOTTOM_RIGHT].push(copyrightNode);

//##//  map.addControl(new RulerControl());

  var reloadconDiv = document.createElement('div');
  reloadcon = new ReloadControl(reloadconDiv, map);
  map.controls[google.maps.ControlPosition.TOP_RIGHT].push(reloadconDiv);

  google.maps.event.addListener(map, "click", onMapClick);

  linkinfo = document.createElement("div");
  document.getElementById("map").appendChild(linkinfo);
  linkinfo.style.visibility = "hidden"

  dnsinfo = document.createElement("div");
  document.getElementById("map").appendChild(dnsinfo);
  dnsinfo.style.visibility = "hidden"

//  geocoder = new google.maps.Geocoder();

  var countbox = document.getElementById("countbox");
  countboxText = document.createTextNode("Aktiv: 0");
  countbox.appendChild(countboxText);

  reloadcon.reload();
}

function onMapClick(mouse_event)
{
  map.setCenter(mouse_event.latLng);
  setNewMarker(mouse_event.latLng);
}

function onDataErr() {
  reloadcon.finished();
}

function onData(xmlData) {
  reloadcon.loaded();

  for(var loc in overlays["locations"]) {
    overlays["locations"][loc].setMap(null);
  }
  overlays["locations"] = [];
  locations = [];
  if (xmlData) {
    drawLocations(xmlData);
  }

  for(var link in overlays["links"]) {
    overlays["links"][link].setMap(null);
  }
  overlays["links"] = [];
  links = [];
  if (xmlData) {
    drawLinks(xmlData);
  }

  if (xmlData) {
    var element = xmlData.getElementsByTagName("count");
    var count = element[0].getAttribute("number");
    countboxText.data = "Aktiv: " + count;
  }

  reloadcon.finished();
}

function drawLocations(xmlData) {
  var element = xmlData.getElementsByTagName("node");
  for (var i = 0; i< element.length; i++) {
    var id = parseInt(element[i].getAttribute("id"));
    locations[id] = new Location(element[i]);

    var marker = new google.maps.Marker({position: locations[id].point, icon: makeIcon(locations[id].state)});
    marker.locid = id;
    google.maps.event.addListener(marker, "click", onLocationClick);
    marker.setMap(map);
    overlays["locations"].push(marker);
  }
  if(document.visibleform.elements["offline"].checked) {
    toggleVisible("offline");
  }
  if(document.visibleform.elements["online"].checked) {
    toggleVisible("online");
  }
}

function Location(element) {
  var location = new Object();
  location.name = element.getAttribute("name");
  var lat  = parseFloat(element.getAttribute("lat"));
  var lng  = parseFloat(element.getAttribute("lng"));
  location.point = new google.maps.LatLng(lat, lng);
  location.pixel_x = parseInt(element.getAttribute("pixel_x"));
  location.pixel_y = parseInt(element.getAttribute("pixel_y"));
  location.state = element.getAttribute("state");
  location.gallery_link = element.getAttribute("gallery_link");
  location.dnsnames = element.getAttribute("router_links");

  return location;
}

function onLocationClick(latlng) {
  var html = '<div class="locinfo">';
  html += '<strong>' + locations[this.locid].name + '</strong>';
  html += '<table class="locinfo">';
  html += '<tr><td>Breitengrad:</td><td>&nbsp;</td><td><strong>' + convertCoords(locations[this.locid].point.lat()) + '</strong><br />' + locations[this.locid].point.lat().toFixed(6) + '</td></tr>';
  html += '<tr><td>Längengrad:</td><td>&nbsp;</td><td><strong>' + convertCoords(locations[this.locid].point.lng()) + '</strong><br />' + locations[this.locid].point.lng().toFixed(6) + '</td></tr>';
  html += '<tr><td>Datenbank:</td><td>&nbsp;</td><td><a href="http://manman.graz.funkfeuer.at/location/show/' + this.locid + '" target="_blank">Link-Database</td></tr>';
  html += '<tr><td>Smokeping:</td><td>&nbsp;</td><td><a href="http://stats.graz.funkfeuer.at/smokeping/?target=Funkfeuer.' + locations[this.locid].name + '" target="_blank">Link-Smokeping</td></tr>';
  if(locations[this.locid].gallery_link) {
    html += '<tr><td>Galerie:</td><td>&nbsp;</td><td><a href="' + locations[this.locid].gallery_link + '" target="_blank">Link-Galerie/Knoten</td></tr>';
  } else {
    html += '<tr><td>Galerie:</td><td>&nbsp;</td><td><a href="http://gallery.funkfeuer.at/v/Graz/Knoten/" target="_blank">Link-Galerie</td></tr>';
  }
  if (locations[this.locid].dnsnames){
    var dnsname = locations[this.locid].dnsnames.split(";");
    for (var i = 0;i < dnsname.length; ++i){
      if (dnsname[i]!==""){
        if(dnsname[i].indexOf(" (")>=0) {
          link=dnsname[i].substring(0,dnsname[i].indexOf(" ("));
        } else {
        link=dnsname[i];
        }
        html += '<tr><td> Router:</td><td>&nbsp;</td><td><a href="http://' + link+ '.ext.graz.funkfeuer.at/" target="_blank">'+dnsname[i]+'</td></tr>';
      }
    }
  }
  html += '</table>';
  html += '</div>';
  var infowindow = new google.maps.InfoWindow({content: html});
  infowindow.open(map,this);
}

function convertCoords(x) {
  var deg = Math.floor(x);
  var min = (x - deg) * 60;
  var sec = (min - Math.floor(min)) * 60;
  return deg + "° " + Math.floor(min) + "' " + sec.toFixed(0) + "\"";
}

function drawLinks(xmlData) {
  var element = xmlData.getElementsByTagName("link");
  for (var i = 0; i< element.length; i++) {
    var id = element[i].getAttribute("from") + "-" + element[i].getAttribute("to");
    links[id] = new Link(element[i]);

    var line = new google.maps.Polyline({path: [links[id].frompoint, links[id].topoint], strokeColor: makeColor(Math.floor(links[id].value)), strokeWeight: makeWeight(Math.floor(links[id].value))});
    line.name = id;
    line.state = "Unbekannt";
    line.linkid = id;
    line.dnsfrom = element[i].getAttribute("dnsfrom");
    line.dnsto = element[i].getAttribute("dnsto");
    line.Routerfrom = element[i].getAttribute("from");
    line.Routerto = element[i].getAttribute("to");
//    google.maps.event.addListener(line, "mouseout", function() { linkinfo.style.visibility = "hidden"; });
//    google.maps.event.addListener(line, "mouseover", function(point) { showLinkInfo(this, point)});
    google.maps.event.addListener(line, "click", function(event) { onLinkClick(this, event.latLng) });

    line.setMap(map);
    overlays["links"].push(line);
  }
  if(document.visibleform.elements["defaultroute"].checked) {
    toggleVisible("defaultroute");
  }
  if(document.visibleform.elements["bad"].checked) {
    toggleVisible("bad");
  }
  if(document.visibleform.elements["middle"].checked) {
    toggleVisible("middle");
  }
  if(document.visibleform.elements["good"].checked) {
    toggleVisible("good");
  }
  if(document.visibleform.elements["tunnel"].checked) {
    toggleVisible("tunnel");
  }
  if(document.visibleform.elements["2.4channel"].checked) {
    toggleVisible("2.4channel");
  }
  if(document.visibleform.elements["channel1"].checked) {
    toggleVisible("channel1");
  }
  if(document.visibleform.elements["channel2"].checked) {
    toggleVisible("channel2");
  }
  if(document.visibleform.elements["channel3"].checked) {
    toggleVisible("channel3");
  }
  if(document.visibleform.elements["channel4"].checked) {
    toggleVisible("channel4");
  }
  if(document.visibleform.elements["channel5"].checked) {
    toggleVisible("channel5");
  }
  if(document.visibleform.elements["channel6"].checked) {
    toggleVisible("channel6");
  }
  if(document.visibleform.elements["channel7"].checked) {
    toggleVisible("channel7");
  }
  if(document.visibleform.elements["channel8"].checked) {
    toggleVisible("channel8");
  }
  if(document.visibleform.elements["channel9"].checked) {
    toggleVisible("channel9");
  }
  if(document.visibleform.elements["channel10"].checked) {
    toggleVisible("channel10");
  }
  if(document.visibleform.elements["channel11"].checked) {
    toggleVisible("channel11");
  }
  if(document.visibleform.elements["channel12"].checked) {
    toggleVisible("channel12");
  }
  if(document.visibleform.elements["channel13"].checked) {
    toggleVisible("channel13");
  }
  if(document.visibleform.elements["5channel"].checked) {
    toggleVisible("5channel");
  }
  if(document.visibleform.elements["undef"].checked) {
    toggleVisible("undef");
  }
}

function showLinkInfo(link, point) {
  var html = '<div id="linkbox" class="box" style="border-color: ' + link.color + '">';
  if((links[link.name].frequency !== "undef") && (links[link.name].frequency !== "")){
     html += '<strong>Frequenz:</strong> ' + links[link.name].frequency + '<br />';
  } else {
     html += '<strong>Frequenz:</strong> undef <br />';
  }
  if(links[link.name].channel !== "undef") {
    html += '<strong>Kanal:</strong> ' + links[link.name].channel + '<br />';
  } else {
    html += '<strong>Kanal:</strong> undef <br />';
  }
  if (links[link.name].value !==-1){
    html += '<strong>Mittlerer ETX:</strong> ' + links[link.name].value  + '<br />';
  } else {
    html += '<strong>Mittlerer ETX:</strong> undef <br />';
  }
  html += '<strong>Name:</strong> ' + link.name  + '<br />';
//##//  html += '<strong>Länge:</strong> ' + link.getLength().toFixed(0) + ' m<br />';
  html += '</div>';
  linkinfo.innerHTML = html;
//##//  var pos = new GControlPosition(G_ANCHOR_BOTTOM_RIGHT, new GSize(180, 0));

//##//  pos.apply(linkinfo);
  linkinfo.style.visibility = "visible";
}

function Link(element) {
  var link = new Object();
  link.from = element.getAttribute("from");
  link.fromid = parseInt(element.getAttribute("fromid"));
  var lat  = parseFloat(element.getAttribute("latfrom"));
  var lng  = parseFloat(element.getAttribute("lngfrom"));
  link.frompoint = new google.maps.LatLng(lat, lng);

  link.to = element.getAttribute("to");
  link.toid = parseInt(element.getAttribute("toid"));
  lat  = parseFloat(element.getAttribute("latto"));
  lng  = parseFloat(element.getAttribute("lngto"));
  link.topoint = new google.maps.LatLng(lat, lng);

  link.value = parseFloat(element.getAttribute("value"));
  link.channel = element.getAttribute("channel");
  link.defaultroute = element.getAttribute("defaultroute");
  link.frequency = element.getAttribute("frequency");
  return link;
}

function onLinkClick(line, latlng) {
  var html ='<div class="locinfo">';
  html += '<strong>'+line.name+'</strong>';
  html += '<table class="linkinfo">';
  if (line.dnsfrom){
    var dnsfrom = line.dnsfrom.split(";");
    for (var i = 0;i < dnsfrom.length; ++i){
      if(dnsfrom[i].indexOf(" (")>=0) {
        link=dnsfrom[i].substring(0,dnsfrom[i].indexOf(" ("));
      } else {
        link=dnsfrom[i];
      }
      html += '<tr><td> Router:</td><td>&nbsp;</td><td><a href="http://' + link+ '.ext.graz.funkfeuer.at/" target="_blank">'+dnsfrom[i]+'</td></tr>';
    }
  }

  if(line.dnsto){
    var dnsto = line.dnsto.split(";");
    for (var i = 0;i < dnsto.length; ++i){
      if(dnsto[i].indexOf(" (")>=0) {
        link=dnsto[i].substring(0,dnsto[i].indexOf(" ("));
      } else {
        link=dnsto[i];
      }
      html += '<tr><td> Router:</td><td>&nbsp;</td><td><a href="http://' + link+ '.ext.graz.funkfeuer.at/" target="_blank">'+dnsto[i]+'</td></tr>';
    }
  }
  html += '</table>';
  html += '</div>';

  var infowindow = new google.maps.InfoWindow({ content: html, position: latlng });
  infowindow.open(map);
}

function makeColor(value) {
  switch(value) {
    case -1: return '#0000FF';
    case 0: return '#FF0000';
    case 1: return '#33bb33';
    case 2: return '#66bb33';
    case 3: return '#ff9900';
    case 4: return '#ffcc00';
    case 5: return '#cccc33';
    default: return '#666666'
  }
}

function makeWeight(value) {
  switch(value) {
    case -1: return 2;
    case 0: return 1;
    case 1: return 3;
    case 2: return 2;
    case 3: return 1;
    case 4: return 1;
    case 5: return 1;
    default: return 1;
  }
}

function makeIcon(type) {
  var url;
  switch(type) {
    case 'ruler': url = "./img/marker_blue.png"; break;
    case 'newnode': url = "./img/marker_darkred.png"; break;
    case 'online': url = "./img/marker_online.png"; break;
    case 'tunnel': url = "./img/marker_tunnel.png"; break;
    case 'offline': url = "./img/marker_offline.png"; break;
  }
  return {
    'url': url,
    size: new google.maps.Size(12, 20),
    origin: new google.maps.Point(0,0),
    anchor: new google.maps.Point(6, 20)
  };
}

function toggleVisible(element) {
  var elements = Object();
  if (element=='bad' || element=='middle' || element=='good'){
    document.visibleform.elements["2.4channel"].checked=false;
    document.visibleform.elements["channel1"].checked=false;
    document.visibleform.elements["channel2"].checked=false;
    document.visibleform.elements["channel3"].checked=false;
    document.visibleform.elements["channel4"].checked=false;
    document.visibleform.elements["channel5"].checked=false;
    document.visibleform.elements["channel6"].checked=false;
    document.visibleform.elements["channel7"].checked=false;
    document.visibleform.elements["channel8"].checked=false;
    document.visibleform.elements["channel9"].checked=false;
    document.visibleform.elements["channel10"].checked=false;
    document.visibleform.elements["channel11"].checked=false;
    document.visibleform.elements["channel12"].checked=false;
    document.visibleform.elements["channel13"].checked=false;
    document.visibleform.elements["5channel"].checked=false;
    document.visibleform.elements["undef"].checked=false;
  }
  if (element=='2.4channel'){
    document.visibleform.elements["channel1"].checked=document.visibleform.elements["2.4channel"].checked;
    document.visibleform.elements["channel2"].checked=document.visibleform.elements["2.4channel"].checked;
    document.visibleform.elements["channel3"].checked=document.visibleform.elements["2.4channel"].checked;
    document.visibleform.elements["channel4"].checked=document.visibleform.elements["2.4channel"].checked;
    document.visibleform.elements["channel5"].checked=document.visibleform.elements["2.4channel"].checked;
    document.visibleform.elements["channel6"].checked=document.visibleform.elements["2.4channel"].checked;
    document.visibleform.elements["channel7"].checked=document.visibleform.elements["2.4channel"].checked;
    document.visibleform.elements["channel8"].checked=document.visibleform.elements["2.4channel"].checked;
    document.visibleform.elements["channel9"].checked=document.visibleform.elements["2.4channel"].checked;
    document.visibleform.elements["channel10"].checked=document.visibleform.elements["2.4channel"].checked;
    document.visibleform.elements["channel11"].checked=document.visibleform.elements["2.4channel"].checked;
    document.visibleform.elements["channel12"].checked=document.visibleform.elements["2.4channel"].checked;
    document.visibleform.elements["channel13"].checked=document.visibleform.elements["2.4channel"].checked;
  }
  switch(element) {
    case 'defaultroute': elements.overlays = overlays["links"]; elements.select = new Function("id", "return (links[overlays['links'][id].linkid].defaultroute == '0');"); break;
    case 'offline': elements.overlays = overlays["locations"]; elements.select = new Function("id", "return (locations[overlays['locations'][id].locid].state == 'offline');"); break;
    case 'online': elements.overlays = overlays["locations"]; elements.select = new Function("id", "return (locations[overlays['locations'][id].locid].state != 'offline');"); break;
    case 'bad': elements.overlays = overlays["links"]; elements.select = new Function("id", "return (links[overlays['links'][id].linkid].value >= 6);"); break;
    case 'middle': elements.overlays = overlays["links"]; elements.select = new Function("id", "return (links[overlays['links'][id].linkid].value >= 3 && links[overlays['links'][id].linkid].value < 6);"); break;
    case 'good': elements.overlays = overlays["links"]; elements.select = new Function("id", "return (links[overlays['links'][id].linkid].value >= 0 && links[overlays['links'][id].linkid].value < 3);"); break;
    case 'tunnel': elements.overlays = overlays["links"]; elements.select = new Function("id", "return (links[overlays['links'][id].linkid].value == -1);"); break;
    case 'channel1': document.visibleform.elements["2.4channel"].checked=false; elements.overlays = overlays["links"]; elements.select = new Function("id", "return (links[overlays['links'][id].linkid].channel == '1');"); break;
    case 'channel2': document.visibleform.elements["2.4channel"].checked=false; elements.overlays = overlays["links"]; elements.select = new Function("id", "return (links[overlays['links'][id].linkid].channel == '2');"); break;
    case 'channel3': document.visibleform.elements["2.4channel"].checked=false; elements.overlays = overlays["links"]; elements.select = new Function("id", "return (links[overlays['links'][id].linkid].channel == '3');"); break;
    case 'channel4': document.visibleform.elements["2.4channel"].checked=false; elements.overlays = overlays["links"]; elements.select = new Function("id", "return (links[overlays['links'][id].linkid].channel == '4');"); break;
    case 'channel5': document.visibleform.elements["2.4channel"].checked=false; elements.overlays = overlays["links"]; elements.select = new Function("id", "return (links[overlays['links'][id].linkid].channel == '5');"); break;
    case 'channel6': document.visibleform.elements["2.4channel"].checked=false; elements.overlays = overlays["links"]; elements.select = new Function("id", "return (links[overlays['links'][id].linkid].channel == '6');"); break;
    case 'channel7': document.visibleform.elements["2.4channel"].checked=false; elements.overlays = overlays["links"]; elements.select = new Function("id", "return (links[overlays['links'][id].linkid].channel == '7');"); break;
    case 'channel8': document.visibleform.elements["2.4channel"].checked=false; elements.overlays = overlays["links"]; elements.select = new Function("id", "return (links[overlays['links'][id].linkid].channel == '8');"); break;
    case 'channel9': document.visibleform.elements["2.4channel"].checked=false; elements.overlays = overlays["links"]; elements.select = new Function("id", "return (links[overlays['links'][id].linkid].channel == '9');"); break;
    case 'channel10': document.visibleform.elements["2.4channel"].checked=false; elements.overlays = overlays["links"]; elements.select = new Function("id", "return (links[overlays['links'][id].linkid].channel == '10');"); break;
    case 'channel11': document.visibleform.elements["2.4channel"].checked=false; elements.overlays = overlays["links"]; elements.select = new Function("id", "return (links[overlays['links'][id].linkid].channel == '11');"); break;
    case 'channel12': document.visibleform.elements["2.4channel"].checked=false; elements.overlays = overlays["links"]; elements.select = new Function("id", "return (links[overlays['links'][id].linkid].channel == '12');"); break;
    case 'channel13': document.visibleform.elements["2.4channel"].checked=false; elements.overlays = overlays["links"]; elements.select = new Function("id", "return (links[overlays['links'][id].linkid].channel == '13');"); break;
    case 'undef': elements.overlays = overlays["links"]; elements.select = new Function("id", "return (links[overlays['links'][id].linkid].frequency == 'undef');"); break;
    case '2.4channel': elements.overlays = overlays["links"]; elements.select = new Function("id", "return (links[overlays['links'][id].linkid].frequency == '2.4');"); break;
    case '5channel': elements.overlays = overlays["links"]; elements.select = new Function("id", "return (links[overlays['links'][id].linkid].frequency !=='2.4' && links[overlays['links'][id].linkid].frequency !=='undef');"); break;
  }

  if(document.visibleform.elements[element].checked) {
    hideElements(elements);
  } else {
    showElements(elements);
  }
}

function hideElements(elements) {
  for(var o in elements.overlays)
    if(elements.select(o)) elements.overlays[o].setVisible(false);
}

function showElements(elements) {
  for(var o in elements.overlays)
    if(elements.select(o)) elements.overlays[o].setVisible(true);
}

function centerAndZoom(lat, lng) {
  map.setCenter(new google.maps.LatLng(lat, lng));
  map.setZoom(20);
}

function addNewNodeText(point) {
  var x_startpoint = 4080;
  var lng_startpoint = 15.43844103813;
  var dx_dlng = 50675.5176;
  var y_startpoint = 4806;
  var lat_startpoint = 47.07177327969;
  var dy_dlat = 75505.521;

  var pixel_x = parseInt(Math.floor(x_startpoint + (point.lng() - lng_startpoint) * dx_dlng));
  var pixel_y = parseInt(Math.floor(y_startpoint - (point.lat() - lat_startpoint) * dy_dlat));

  var link = 'https://manman.graz.funkfeuer.at/location/new?';
  link += 'z_x=' + Math.floor(pixel_x % 100) + '&z_y=' + Math.floor(pixel_y % 100);
  link += '&c='  + Math.floor(pixel_x / 100) + '&r='   + Math.floor(pixel_y / 100);

  var html = '<strong>Neuen Knoten eintragen<br />Nutzen sie den Zoombereich aus!</strong><br /><br />';
  html += '<table width="100%">';
  html += '<tr><td>Breitengrad:</td><td>&nbsp;</td><td><strong>' + convertCoords(point.lat()) + '</strong><br />' + point.lat().toFixed(6) + '</td><td>&nbsp;</td>';
  html += '<td><form action="#" onsubmit="return false"><input type="button" value="hineinzoomen" ';
  html += 'onclick="javascript:centerAndZoom(' + point.lat() + ',' + point.lng() + ')" /></form></td></tr>';
  html += '<tr><td>Längengrad:</b></td><td>&nbsp;</td><td><strong>' + convertCoords(point.lng()) + '</strong><br />' + point.lng().toFixed(6) + '</td><td>&nbsp;</td>';
  html += '<td><form action="#" onsubmit="return false"><input type="button" value="Standort eintragen" ';
  html += 'onclick="window.open(\'' + link + '\')" /></form></td></tr>';
  html += '</table>';
  return html;
}

function setNewMarker(point) {
  var marker = new google.maps.Marker({position: point, icon: makeIcon('newnode')});
  var infowindow = new google.maps.InfoWindow({ content: addNewNodeText(point) });
  google.maps.event.addListener(infowindow,"closeclick",function () { marker.setMap(null); });
  marker.setMap(map);
  infowindow.open(map,marker);
  if(overlays["newmarker"]) {
    overlays["newmarker"].setMap(null);
  }
  overlays['newmarker'] = marker;
}

function fflogin(username, password) {
  $.post("login.php",  { username: username, password: password, login: "Einloggen#" } )
      .done(function(data) { onFFLogin(data); });
}

function onFFLogin(xmlData) {
  var error = xmlData.getElementsByTagName("error");
  if(error.length > 0) {
    alert(error[0].getAttribute("string"));
  }
  else {
    var status = xmlData.getElementsByTagName("status");
    if(status[0].getAttribute("code") == "logged_in") {
      var username = xmlData.getElementsByTagName("username")[0].getAttribute("name");
      showFFLogout(username);
      reloadcon.reload();
    }
  }
}

function showFFLogin() {
  var html = '<form action="#" onsubmit="fflogin(this.username.value, this.password.value); this.reset(); return false">';
  html += '<table><tr>';
  html += '<td>Benutzername:</td>';
  html += '<td><input name="username" size="23" type="text" tabindex="1"/></td>';
  html += '<td rowspan="2" valign="bottom"><input name="login" type="submit" id="login" value="Einloggen" tabindex="3"></td>';
  html += '</tr><tr>';
  html += '<td>Passwort:</td>';
  html += '<td><input name="password" type="password" tabindex="2" /></td>';
  html += '</tr></table></form>';

  document.getElementById("loginbox").innerHTML = html;
}

function fflogout() {
  $.post("login.php",  { logout: "Ausloggen#" } )
      .done(function(data) { onFFLogout(data); });
}

function onFFLogout(xmlData) {
  var error = xmlData.getElementsByTagName("error");
  if(error.length > 0) {
    alert(error[0].getAttribute("string"));
  }
  else {
    showFFLogin();
    reloadcon.reload();
  }
}

function showFFLogout(username) {
  var html = '<form action="#" onsubmit="fflogout(); return false">';
  html += 'Sie sind eingeloggt als:</br >';
  html += '<strong>'+username+'</strong>&nbsp;&nbsp;&nbsp;'
  html += '<input name="login" type="submit" id="logout" value="Ausloggen"></form>';

  document.getElementById("loginbox").innerHTML = html;
}

function showAddress(address) {
  if (geocoder) {
//    address += ", Graz, Austria";
    geocoder.getLatLng(address,
      function(point) {
        if (!point) {
          alert(address + " nicht gefunden");
        } else {
          map.setCenter(point);
          setNewMarker(point);
        }
      });
  }
}

function ReloadControl(controlDiv, map) {
  controlDiv.style.padding = '5px';

  var controlUI = document.createElement('div');
  controlUI.className = 'btn';
  controlUI.title = 'Click to reload data';
  controlDiv.appendChild(controlUI);

  var controlText = document.createElement('div');
  controlText.innerHTML = 'Daten neu laden';
  controlUI.appendChild(controlText);

  var cntrl = new Object();
  cntrl.reload = function() {
    controlText.innerHTML = 'wird geladen...';
    $.get("data.php", onData).fail(onDataErr);
  }
  cntrl.loaded = function() { controlText.innerHTML = 'wird verarbeitet...'; }
  cntrl.finished = function() { controlText.innerHTML = 'Daten neu laden'; }

  google.maps.event.addDomListener(controlUI, 'click', cntrl.reload);
  return cntrl;
}



//##//function RulerControl() {
//##//}
//##//
//##//RulerControl.prototype = new GControl();
//##//
//##//RulerControl.prototype.initialize = function(map) {
//##//  var btnText;
//##//  var distBoxOuter;
//##//  var distBox;
//##//  var distText;
//##//
//##//  function measure() {
//##//    if(overlays["ruler"]["marker1"] && overlays["ruler"]["marker2"]) {
//##//      var line = [overlays["ruler"]["marker1"].getPoint(), overlays["ruler"]["marker2"].getPoint()];
//##//      var dist = overlays["ruler"]["marker1"].getPoint().distanceFrom(overlays["ruler"]["marker2"].getPoint());
//##//      dist = dist.toFixed(0)+" m";
//##//      if(parseInt(dist) > 10000) {
//##//        dist = (parseInt(dist)/1000).toFixed(1) + " km";
//##//      }
//##//      distText.data = "Entfernung: " + dist;
//##//      var poly = new GPolyline(line,'#FFFF00', 3, 1)
//##//      poly.overlaysubtype = "line";
//##//      map.addOverlay(poly);
//##//    }
//##//  }
//##//
//##//  function clr(){
//##//    for(var o in overlays["ruler"]) {
//##//      map.removeOverlay(overlays["ruler"][o]);
//##//    }
//##//    overlays["ruler"] = [];
//##//    distBox.style.visibility = "hidden";
//##//    btnText.data = "Entfernung messen";
//##//  }
//##//
//##//  var container = document.createElement("div");
//##//  var btnDiv = document.createElement("div");
//##//  btnDiv.className = "btn";
//##//  btnDiv.id = "rulerbtn";
//##//  container.appendChild(btnDiv);
//##//  btnText = document.createTextNode("Entfernung messen");
//##//  btnDiv.appendChild(btnText);
//##//  google.maps.event.addDomListener(btnDiv, "click", function() {
//##//      for(var o in overlays["ruler"]) {
//##//        if(overlays["ruler"][o]) {
//##//          clr();
//##//          return;
//##//        }
//##//      }
//##//
//##//      btnText.data = "Messung beenden";
//##//      distText.data = "Entfernung: 0 m";
//##//      distBox.style.visibility = "visible";
//##//
//##//      var pnt = map.getCenter();
//##//      marker1 = new GMarker(pnt, {icon: makeIcon('ruler'), draggable: true});
//##//      map.addOverlay(marker1);
//##//
//##//      marker2 = new GMarker(pnt, {icon: makeIcon('ruler'), draggable: true});
//##//      map.addOverlay(marker2);
//##//
//##//      google.maps.event.addListener(marker1, "drag", function() { measure(); });
//##//      google.maps.event.addListener(marker2, "drag", function() { measure(); });
//##//    });
//##//  distBoxOuter = document.createElement("div");
//##//  distBoxOuter.id = "distboxouter";
//##//  distBox = document.createElement("div");
//##//  distBox.className = "box";
//##//  distBox.id = "distbox";
//##//  distBox.style.visibility = "hidden";
//##//  distText = document.createTextNode("Entfernung: ? m");
//##//  distBox.appendChild(distText);
//##//  distBoxOuter.appendChild(distBox);
//##//  document.getElementById("map").appendChild(distBoxOuter);
//##//
//##//  map.getContainer().appendChild(container);
//##//  return container;
//##//}
//##//
//##//RulerControl.prototype.getDefaultPosition = function() {
  //##//return new GControlPosition(G_ANCHOR_BOTTOM_RIGHT, new GSize(7, 7));
//##//}