var mapa;
  var markers;
  var home = new Array();

  var arr = {
    1 : [51.1078852, 17.0385376],
    2 : [53.09402405506325, 18.292236328125],
    3 : [52.35547370875268, 15.281982421875],
    4 : [51.7592485, 19.4559833], 
    5 : [51.2464536, 22.5684463],
    6 : [52.2296756, 21.0122287],
    7 : [50.0646501, 19.9449799],
    8 : [50.670428, 17.9244381],
    9 : [53.1324886, 23.1688403], 
   10 : [50.0409469, 21.9992806],
   11 : [54.3520252, 18.6466384],
   12 : [50.2648919, 19.0237815],
   13 : [50.8660773, 20.6285677],
   14 : [53.778422, 20.4801193],
   15 : [52.406374, 16.9251681],
   16 : [53.4285438, 14.5528116]
  }

  function to_txt() {
    var state = document.getElementById("sta_sel");
    state = state.options[state.selectedIndex].value;
    var cat = document.getElementById("cat_sel");
    cat = cat.options[cat.selectedIndex].value;
    var price = document.getElementById("price_edit").value;
    document.location="anonse,state-"+state+",category-"+cat+",price-"+price+".html";
  }

  function info(txt) {
    document.getElementById("info_box").innerHTML = txt;
  } 

  function addMarker(lat, lon, ico, id) {
    var ico1 = new GIcon();
    ico1.image = "https://www.bazakoni.pl/img/mapa/"+ico+".png";
    ico1.shadow = "https://www.bazakoni.pl/img/mapa/shadow.png";
    ico1.iconSize = new GSize(21,31);
    ico1.infoWindowAnchor = new GPoint(10,35);
    ico1.iconAnchor = new GPoint(10,31);
    ico1.shadowSize = new GSize(37,31);

    var m = new GMarker(new GLatLng(lat,lon),{icon: ico1});
    m.item = id;
    m.box = "";
    markers.addMarker(m,0);
    GEvent.addListener(m,"click",function(){
      if ( m.box == 0 ) {
        GDownloadUrl("anonse,op-get_box,id-"+m.item+".html", function(content, returnCode) {
          if (returnCode == 200) {
            m.box = content;
          }else{
            m.box = "Error while downloading content<br /><br />"
            m.box += "<a href=\"anonse,a-"+m.item+".html\">go to full text of the ad</a>";
          }
          m.openInfoWindowHtml(m.box);
        });
      }else{
        m.openInfoWindowHtml(m.box);
      }
    });
    GEvent.addListener(m,"dblclick",function(ovr,point){
          mapa.setZoom(13);
          mapa.panTo(point);
    });
    return m;
  }

  function addHome() {
    if ( ! home[0] ) return;
    var ico1 = new GIcon();
    ico1.image = "https://www.bazakoni.pl/img/mapa/0.png";
    ico1.shadow = "https://www.bazakoni.pl/img/mapa/shadow.png";
    ico1.iconSize = new GSize(21,31);
    ico1.infoWindowAnchor = new GPoint(10,35);
    ico1.iconAnchor = new GPoint(10,31);
    ico1.shadowSize = new GSize(37,31);

    var m = new GMarker(new GLatLng(home[1],home[2]),{icon: ico1});
    m.box = "Your home location:<br />"+home[3]+"<br /><br />";
    m.box += "<a href=\"user,op-set_location,ret-8966.html\">change</a>";
    markers.addMarker(m,0);
    GEvent.addListener(m,"click",function(){
      m.openInfoWindowHtml(m.box);
    });
    GEvent.addListener(m,"dblclick",function(ovr,point){
      mapa.setZoom(13);
      mapa.panTo(point);
    });
  }

  function state_change() {
    var state = document.getElementById("sta_sel");
    state = state.options[state.selectedIndex].value;
    if ( state == 0 ){
      mapa.setCenter(new GLatLng(52.0,19.5),6);
    }else{
      mapa.setZoom(8);
      mapa.panTo(new GLatLng(arr[state][0], arr[state][1]));
    }
  }

  function cat_change() {
    info("Loading data, please wait...");
    markers.clearMarkers();
    var cat = document.getElementById("cat_sel");
    cat = cat.options[cat.selectedIndex].value;
    var price = document.getElementById("price_edit").value;
    GDownloadUrl('anonse,op-get_markers,category-'+cat+',price-'+price+'.html', function(content, returnCode) {
      if (returnCode == 200) {
        var xml = GXml.parse(content);
        var m1 = xml.documentElement.getElementsByTagName("marker");
        for( var a=0; a<m1.length; a++){
          addMarker(parseFloat(m1[a].getAttribute("lat")), parseFloat(m1[a].getAttribute("lon")), m1[a].getAttribute("ico"), m1[a].getAttribute
("id"));
        }
        info(m1.length+" anouncements found in the category");
      }else{
        info("Error while downloading announcements data. Try again later");
      }
    });
    addHome();
    markers.refresh();
  }

  function deg2dms(deg,islat)  {
    var znak = deg>0?0:1;
    deg = Math.abs(deg);

    var d = Math.floor(deg);
    var s = ((deg - Math.floor(deg))*3600);
    var m = Math.floor(s/60);
    s = (s - m*60).toFixed(2);

    if(s<10) s='0'+s;
    if(m<10) m='0'+m;

    var sufix = islat==0?['E','W']:['N','S'];

    return d+'°'+m+'\''+s+'\'\''+sufix[znak];
  }

  function ip_center() {
    info("Loading data, please wait...");
    GDownloadUrl('anonse,op-get_own_ip.html', function(content, returnCode) {
      if (returnCode == 200) {
        var xml = GXml.parse(content);
        var m = xml.documentElement.getElementsByTagName("marker");
        var lat = parseFloat(m[0].getAttribute("lat"));
        var lon = parseFloat(m[0].getAttribute("lon"));
        mapa.setCenter(new GLatLng(lat,lon), 10);

        var mar = new GMarker(new GLatLng(lat,lon));
        markers.addMarker(mar,0);
        mar.txt  = "Your IP address is <b>"+m[0].getAttribute("ip");
	mar.txt += "</b><br />Your location is <b>"+deg2dms(lon,0) + " " + deg2dms(lat,1);
        mar.txt += " </b>(" + m[0].getAttribute("city")+")";
        mar.txt += "<br />Geolocation data provided by www.maxmind.com";
        mar.openInfoWindowHtml(mar.txt);
        info("IP "+m[0].getAttribute("ip")+" Your location is <b>"+deg2dms(lon,0) +
         " " + deg2dms(lat,1)+" (" + m[0].getAttribute("city")+")" );
        GEvent.addListener(mar,"click",function(ovr,point){
          mar.openInfoWindowHtml(mar.txt);
        });
      }else{
        info("Error while location your IP. Try again later");
      }
    });
  }

  function go_home() {
    if ( ! home[0] ) return;
    mapa.setCenter(new GLatLng(home[1], home[2]), 9);
  }

  function baza_logo() {}
  baza_logo.prototype = new GControl();
  baza_logo.prototype.initialize = function(mapa){
    var logo = document.createElement('div');
    logo.id = 'logo';
    this.mapa = mapa;             
    this.div = logo;
    mapa.getContainer().appendChild(logo);  
    return logo; 
  }
  baza_logo.prototype.getDefaultPosition = function() {
    return new GControlPosition(G_ANCHOR_BOTTOM_RIGHT, new GSize(5, 20));
  }

  var our_area = new GLatLngBounds();
  our_area.extend(new GLatLng(49.49667452747044,13.88671875));
  our_area.extend(new GLatLng(54.53223884916208,23.46679687));

  function mapaStart() {
    if(GBrowserIsCompatible()) {
      mapa = new GMap2(document.getElementById("map_container"));
      mapa.addControl(new baza_logo());
      mapa.setCenter(new GLatLng(52.0,19.5),6);
      mapa.addControl(new GLargeMapControl());
      mapa.addControl(new GScaleControl());
      mapa.addControl(new GMapTypeControl());
      mapa.enableDoubleClickZoom();
      mapa.enableContinuousZoom();
      mapa.enableScrollWheelZoom();
      var maps = mapa.getMapTypes();
      for (var i=0; i<maps.length; i++) {
        maps[i].getMinimumResolution = function() {return 6;}
      }
      GEvent.addListener(mapa, "move", function() {
        if( ! our_area.contains(mapa.getCenter() ) ) {
          var lat = mapa.getCenter().lat();
          var lng = mapa.getCenter().lng();
          var minlat = our_area.getSouthWest().lat();
          var maxlat = our_area.getNorthEast().lat();
          var minlng = our_area.getSouthWest().lng();
          var maxlng = our_area.getNorthEast().lng();
          if(lat > maxlat)
            lat = maxlat;
          else if(lat < minlat)
            lat = minlat;
          if(lng > maxlng)
            lng = maxlng;
          else if(lng < minlng)
            lng = minlng;
          mapa.setCenter(new GLatLng(lat,lng));
        }
      });
      markers = new MarkerManager(mapa,{maxZoom: 19}); 
      cat_change();
      state_change();
    }
  }

  var oldonload = window.onload;
  if (typeof window.onload != "function"){
    window.onload = mapaStart;
  } else {
    window.onload = function(){
      oldonload();
      mapaStart();
    }
  }